Biology

13 pages, 1784 KiB

Open AccessArticle

Identification of DNA Methylation Differences in Pituitary Tissues of Sichuan White Geese Using Whole-Genome Bisulfite Sequencing (WGBS)

by Lin Ma, Xianzhi Zhao, Guoda A, Tongtong Song, Meng Wu, Zhihao Yan, Min Xiao, Wenbo Jiang, Yixiao Gao, Haiwei Wang, Zhuping Chen, Keshan Zhang, Jiajia Xue, Yi Luo, Chao Wang, Youhui Xie, Ying Chen, Guangliang Gao and Qigui Wang

Biology 2025, 14(2), 154; https://doi.org/10.3390/biology14020154 - 3 Feb 2025

Abstract

To explore the impact of epigenetic modifications on egg-laying traits in geese, we employed genome-wide bisulfite sequencing (WGBS) to analyze DNA methylation patterns in pituitary tissues of high-(HYP) and low-yield (LYP) Sichuan White geese. We achieved high-quality sequencing data (mean 19.09 Gb raw [...] Read more.

To explore the impact of epigenetic modifications on egg-laying traits in geese, we employed genome-wide bisulfite sequencing (WGBS) to analyze DNA methylation patterns in pituitary tissues of high-(HYP) and low-yield (LYP) Sichuan White geese. We achieved high-quality sequencing data (mean 19.09 Gb raw reads, 15.49 Gb clean reads, 79.1% unique mapping rate) with a bisulfite conversion efficiency of 99.88%. Comparative analysis revealed 2394 differentially methylated regions (DMRs) and 422 differentially methylated genes (DMGs) between HYP and LYP groups. We identified five key differentially methylated candidate genes (BMPER, INHA, NMBR, NK3R, and DSG2) linked to egg-laying traits in Sichuan White geese. Integrated GO and KEGG enrichment analysis conducted to explore the role of regulatory networks of epigenetic modification on egg-laying traits in Sichuan White geese identified multiple metabolic pathways associated with egg-laying traits (promoting egg transport, ovulation, and yolk protein synthesis and secretion), thus providing a basis for subsequent functional verification. Full article

(This article belongs to the Special Issue From Basics to Applications of Gene Regulatory Networks)

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19 pages, 3897 KiB

Open AccessArticle

Seasonal Dynamics of Benthic Infauna Communities in Zostera marina Meadows: Effects of Plant Density Gradients

by Natalia Anna Gintowt, Halina Kendzierska and Urszula Janas

Biology 2025, 14(2), 153; https://doi.org/10.3390/biology14020153 - 3 Feb 2025

Abstract

Zostera marina meadows play a key role in the Baltic Sea ecosystem. They are characterized by high primary production and provide feeding and reproduction grounds for organisms. These characteristics vary due to year-round environmental changes and may be due to the characteristics of [...] Read more.

Zostera marina meadows play a key role in the Baltic Sea ecosystem. They are characterized by high primary production and provide feeding and reproduction grounds for organisms. These characteristics vary due to year-round environmental changes and may be due to the characteristics of the meadows themselves. Organisms inhabiting seagrass meadows are involved in the transformation of substances from terrestrial runoff, and, through bioturbation and bioirrigation, affect biogeochemical processes in the sediments. This study aimed to determine the structure of benthic communities inhabiting Z. marina meadows and their bioturbation (BP_C) and bioirrigation (IP_C) potential as affected by seagrass density and seasonal changes. This study shows a positive correlation between the density of Z. marina and the structure of macrozoobenthos, as well as the bioturbation and bioirrigation potential of the studied communities. The autumn season stimulated the density of macrofauna and recorded the highest values of their potential activities indices. The presence of Z. marina positively affects macrozoobenthic communities and their functioning regardless of seagrass density, indicating that seagrass meadows inhabited by macrofauna are key biotopes that can support biogeochemical processes in the coastal zone more effectively than bare sand. Full article

(This article belongs to the Special Issue Benthic Biodiversity from Microbes to Multicellular Organisms and Its Functional Interplays)

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24 pages, 7367 KiB

Open AccessArticle

The ³¹P Spectral Modulus (PSM) as an Assay of Metabolic Status

by Jack V. Greiner, Tamara I. Snogren and Thomas Glonek

Biology 2025, 14(2), 152; https://doi.org/10.3390/biology14020152 - 2 Feb 2025

Abstract

The phosphorus-31 (³¹P) spectral modulus (PSM) is a measure of the metabolic status of cells, tissues, and organs. The PSM can be calculated from ³¹P nuclear magnetic resonance (³¹P NMR) spectra obtained from cell, tissue, or organ preparations. [...] Read more.

The phosphorus-31 (³¹P) spectral modulus (PSM) is a measure of the metabolic status of cells, tissues, and organs. The PSM can be calculated from ³¹P nuclear magnetic resonance (³¹P NMR) spectra obtained from cell, tissue, or organ preparations. These ³¹P NMR spectra can be a measure of intact living cells, tissues, or organs, or appropriate biochemical extracts of such preparations. The ³¹P NMR spectrum is comprised of signals derived from organophosphate metabolites that resonate from 10 δ to −25 δ on the phosphorus chemical shift δ scale. The PSM is the ratio of the high-energy phosphate to that of the low-energy phosphate spectral integrals. These integrals may be conveniently grouped into high-energy and low-energy spectral regions, respectively, into ³¹P chemical shifts located between −0.13 δ to −25 δ and between 10 δ to −0.13 δ. High-energy phosphates are typically described as providing the energy necessary for the activity of cellular metabolism; chemically, they contain one or more phosphate anhydride bonds. This study demonstrates that, (1) in general, the higher the metabolic activity, the higher the PSM, and (2) the modulus calculation does not require a highly resolved ³¹P spectrum and can be calculated solely from the integral. The PSM was calculated among cells, tissues, and organs considered normal, diseased, and stressed. In diseased (mean 1.29 ± 0.73) and stressed (mean 1.23 ± 0.75) cells, tissues, and organs, PSM values are typically low or low relative to normal cells, tissues, or organs (mean 1.65 ± 0.90), following time-course measurements, in dynamic decline. The PSM is useful in determining the metabolic status of cells, tissues, or organs and can be employed as a calculable numeric assay for determining health status statically or over time. Calculation of the PSM can be carried out with spectra of low signal-to-noise; it relies on the minimal resolution required to detect an integral curve having a clear spectral integral inflection point at ca. −0.13 δ. Detection of an integral curve alone enables the calculation of a PSM even at levels of phosphorus concentration so low as to prevent detection of the individual or groups of metabolites, such as with in vivo or ex vivo cell, tissue, or organ determinations. This study (1) presents the foundations and fundamentals of the PSM, a living index of tissue metabolic health, and (2) demonstrates the use of spectral scan analysis in opening new vistas of biology and medicine for measuring the metabolic status of stressed and diseased tissues at a range of detectable levels for monitoring therapeutic interventions. Full article

(This article belongs to the Section Biochemistry and Molecular Biology)

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18 pages, 1575 KiB

Open AccessReview

What Do We Know About Non-Native, Invasive, and Transplanted Aquatic Mollusks in South America?

by Gustavo Darrigran, Carlos Belz, Alvar Carranza, Gonzalo A. Collado, Modesto Correoso, Alejandra A. Fabres, Diego E. Gutiérrez Gregoric, César Lodeiros, Guido Pastorino, Pablo E. Penchaszadeh, Rodrigo B. Salvador, Sonia Santos, Silvana Thiengo and Cristina Damborenea

Biology 2025, 14(2), 151; https://doi.org/10.3390/biology14020151 - 1 Feb 2025

Abstract

Global awareness of introduced species as one of the primary drivers of biodiversity change—causing environmental impacts, and economic and social effects—emphasizes the need to enhance our understanding of these species. Developing a comprehensive database will enable policymakers to identify global bioinvasion patterns and [...] Read more.

Global awareness of introduced species as one of the primary drivers of biodiversity change—causing environmental impacts, and economic and social effects—emphasizes the need to enhance our understanding of these species. Developing a comprehensive database will enable policymakers to identify global bioinvasion patterns and strengthen their capacity to manage them effectively. Aquatic mollusks play a crucial role in the ecosystems they inhabit, influencing food webs and nutrient cycling, and habitat formation and modification. They are also the dominant group in aquaculture, contributing significantly to the economy while also causing economic losses through macrofouling and posing health risks. Despite their importance, information on the introduction, establishment, and dispersal of mollusk species in South America remains scarce and is often confined to the grey literature. With the aim of organizing, increasing, and strengthening the knowledge of non-native and transplanted mollusks in general and aquatic mollusks in particular, 29 specialists in the introduced mollusks of South America, from seven countries, have been working collaboratively since 2016. Each member contributes expertise, data, and bibliographic resources to build the status of the introduced mollusks in South America and provide critical information to prevent future introductions and transplants. In aquatic environments, 41 non-native mollusk species and 18 transplanted species have been identified. Among them, the bivalve Limnoperna fortunei stands out with the greatest economic effect, while the gastropods Lymnaeidae and Thiaridae represent significant health concerns. Although this research represents a major step forward, it also highlights challenges such as the scarcity of taxonomic studies and the limited investigation of vast areas in South America. The information compiled in this review serves as a resource for researchers, policymakers, and the general public when addressing mollusk bioinvasions in South America. Full article

(This article belongs to the Special Issue 2nd Edition: Aquatic Alien Invasions and Their Impact on Biodiversity and Ecosystem Services )

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23 pages, 8162 KiB

Open AccessArticle

The Role of Umbilical Cord Mesenchymal Stem Cell-Derived Extracellular Vesicles in Modulating Dermal Fibroblast Activity: A Pathway to Enhanced Tissue Regeneration

by Muttiah Barathan, Kow Jack Ham, Hui Yin Wong and Jia Xian Law

Biology 2025, 14(2), 150; https://doi.org/10.3390/biology14020150 - 1 Feb 2025

Abstract

Extracellular vesicles (EVs) secreted by umbilical cord-derived mesenchymal stem cells (UC-MSCs) hold significant promise as therapeutic agents in regenerative medicine. This study investigates the effects of UC-MSC-derived EVs on dermal fibroblast function, and their potential in wound healing applications. EVs were characterized by [...] Read more.

Extracellular vesicles (EVs) secreted by umbilical cord-derived mesenchymal stem cells (UC-MSCs) hold significant promise as therapeutic agents in regenerative medicine. This study investigates the effects of UC-MSC-derived EVs on dermal fibroblast function, and their potential in wound healing applications. EVs were characterized by nanoparticle tracking analysis and transmission electron microscopy, revealing a mean size of 118.6 nm, consistent with exosomal properties. Dermal fibroblasts were treated with varying concentrations of EVs (25–100 µg/mL), and their impacts on cellular metabolism, mitochondrial activity, reactive oxygen species (ROS) production, wound closure, inflammatory cytokine secretion, growth factor production, and extracellular matrix (ECM) gene expression were evaluated. At lower concentrations (25–50 µg/mL), EVs significantly enhanced fibroblast metabolic and mitochondrial activity. However, higher concentrations (≥75 µg/mL) increased ROS levels, suggesting potential hormetic effects. EVs also modulated inflammation by reducing pro-inflammatory cytokines (IL-6, TNF-α) while promoting pro-regenerative cytokines (IL-33, TGF-β). Treatment with 50 µg/mL of EVs optimally stimulated wound closure and growth factor secretion (VEGF, BDNF, KGF, IGF), and upregulated ECM-related gene expression (type I and III collagen, fibronectin). These findings demonstrate that UC-MSC-derived EVs exert multifaceted effects on dermal fibroblast function, including enhanced cellular energetics, stimulation of cell migration, regulation of inflammation, promotion of growth factor production, and increased ECM synthesis. This study highlights the potential of EVs as a novel therapeutic strategy for wound healing and tissue regeneration, emphasizing the importance of optimizing EV concentration for maximal therapeutic efficacy. Full article

(This article belongs to the Section Cell Biology)

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14 pages, 2482 KiB

Open AccessArticle

Selectively Blocking Small Conductance Ca²⁺-Activated K⁺ Channels Improves Cognition in Aged Mice

by Jessie Ong, H. Craig Heller and Elsa Pittaras

Biology 2025, 14(2), 149; https://doi.org/10.3390/biology14020149 - 1 Feb 2025

Abstract

Aging is associated with decreased neuronal sensitivity and activity that creates deficits in cognitive processes, including learning, memory, motivation, general activity, and other behaviors. These effects are due in part to decreased intracellular Ca²⁺ homeostasis, increasing hyperpolarization of the resting potential in [...] Read more.

Aging is associated with decreased neuronal sensitivity and activity that creates deficits in cognitive processes, including learning, memory, motivation, general activity, and other behaviors. These effects are due in part to decreased intracellular Ca²⁺ homeostasis, increasing hyperpolarization of the resting potential in aged neurons and therefore decreasing their excitability. To reduce hyperpolarization in aged mice, we used apamin, a selective small conductance Ca²⁺-activated K⁺ (sK_Ca) channel blocker. By blocking the sK_Ca channels, apamin decreases the egress of the K⁺ out of the cell, reducing its hyperpolarization and causing it to be closer to threshold potential. As a result, neurons should be more sensitive to excitatory stimuli and more active. We evaluated the performance of aged mice in a selection of cognitive and behavioral tests prior to and after systemic applications of apamin or the vehicle saline. Apamin improved performance in short-term memory, increased attention to tasks, and decreased anhedonia. Apamin had no significant effect on long-term spatial and recognition memory, risk-taking behavior, sociability, and anxiety. Our results are compatible with the known effects of sK_Ca channel blockade on neuronal sensitivity and activity; however, these short-term effects were not reflected in longer-term alterations of neural plasticity responsible for long-term spatial and recognition memory or other more complex cognitive processes we evaluated. Full article

(This article belongs to the Section Behavioural Biology)

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21 pages, 1940 KiB

Open AccessReview

Symbionts of Red King Crab from the Sea of Okhotsk: A Review of Russian Studies

by Alexander G. Dvoretsky and Vladimir G. Dvoretsky

Biology 2025, 14(2), 148; https://doi.org/10.3390/biology14020148 - 31 Jan 2025

Abstract

The red king crab, Paralithodes camtscaticus, is a commercially significant crustacean that supports lucrative fisheries in Russia, the USA, and Norway. The western Kamchatka shelf, located in the Sea of Okhotsk, is home to one of the most important populations of the [...] Read more.

The red king crab, Paralithodes camtscaticus, is a commercially significant crustacean that supports lucrative fisheries in Russia, the USA, and Norway. The western Kamchatka shelf, located in the Sea of Okhotsk, is home to one of the most important populations of the red king crab. In this study, we have conducted a review of the symbionts associated with P. camtscaticus in the waters off the Kamchatka Peninsula. A total of 42 symbiotic species belonging to 14 different phyla were identified in association with the red king crab. Out of these, 14 species were found to be parasitic to the red king crab, while the remaining 28 were either commensal or epibiont in nature. The taxa with the highest number of associated species included ciliates (11), crustaceans (8), and acanthocephalans (4). Our study found that red king crabs suffering from shell disease exhibited a more diverse symbiotic fauna and higher infestation indices as compared to healthy crabs, which were found to be free from parasites. Dangerous symbionts, such as dinoflagellates Hematodinium sp. and rhizocephalan barnacles Briarosaccus callosus, had low incidence rates, indicating that the red king crab population in the Sea of Okhotsk is in good condition with respect to population abundance, health, and recruitment and is not being adversely impacted by symbiotic organisms. Full article

(This article belongs to the Special Issue Epibiosis in Aquatic Environments)

19 pages, 1861 KiB

Open AccessArticle

Binary Mixture of Neonicotinoid–Pyrethroid Insecticide: Impact on Survival, Cognitive Learning, and Memory in Apis mellifera jemenitica

by Mohamedazim I. B. Abuagla, Javaid Iqbal, Hael S. A. Raweh, Abdelsalam S. A. Abdelaziz and Abdulaziz S. Alqarni

Biology 2025, 14(2), 147; https://doi.org/10.3390/biology14020147 - 30 Jan 2025

Abstract

The impact of agrochemicals on pollinators, especially honey bees, has drawn significant attention due to its critical implications for worldwide food stability and ecosystems. Given the potential threat of insecticides to honey bees, bees may encounter multiple insecticides simultaneously during foraging. This study [...] Read more.

The impact of agrochemicals on pollinators, especially honey bees, has drawn significant attention due to its critical implications for worldwide food stability and ecosystems. Given the potential threat of insecticides to honey bees, bees may encounter multiple insecticides simultaneously during foraging. This study investigated the toxic effect of an insecticide mixture (IM) containing acetamiprid (neonicotinoid) and deltamethrin (pyrethroid) on the survival and cognitive appetitive performance of Apis mellifera jemenitica, a vital native pollinator in arid regions of Saudi Arabia. The lethal concentration (LC₅₀) was determined by assessing bees’ mortality rates following exposure to IM through topical and oral routes. Significant bee mortality occurred at 4–48 h post treatment with IM through both exposure routes, showing a trend of increased mortality with higher IM concentrations compared to the control bees. Throughout all tested times, topical exposure proved relatively more effective, resulting in significantly greater bee mortality compared to oral exposure to IM. Food intake declined progressively with rising IM concentrations during oral exposure. The LC₅₀ values of IM at 24 h after treatment were 12.24 ppm for topical and 10.45 ppm for oral exposure. The corresponding LC₁₀, LC₂₀, and LC₃₀ values were 3.75 ppm, 5.63 ppm, and 7.54 ppm for topical exposure and 2.45 ppm, 4.04 ppm, and 5.78 ppm for oral exposure, respectively. The combination index (CI) revealed a synergistic effect (0.43) for topical exposure and antagonistic effects (1.43) for oral exposure, highlighting differential toxicity dynamics. IM exposure significantly impaired cognitive acquisition and memory reinforcement in honey bees, as demonstrated through behavioral assays, indicating potential neurotoxic effects. Learning and memory formation significantly declined at 2, 12, and 24 h after exposure to sublethal concentrations of IM through both topical and oral routes. Thus, evaluating the interactive impact of multiple pesticides on bees’ health and cognitive function is essential, particularly in regions where diverse agrochemicals are routinely utilized. Full article

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14 pages, 1176 KiB

Open AccessArticle

Poor Sympathetic Compensation During Active Standing Increases the Risk of Morbidity–Mortality in the Post-Surgery of Patients with Severe Calcific Aortic Stenosis

by Nydia Avila-Vanzzini, Anayanci Santana-Ortiz, Daniela Sánchez-Estrada, Rashidi Springall, Abel Lerma, Héctor Herrera-Bello, Martín Calderón-Juárez and Claudia Lerma

Biology 2025, 14(2), 146; https://doi.org/10.3390/biology14020146 - 30 Jan 2025

Abstract

(1) Background: Although all severe calcific aortic stenosis (SCAS) patients have decreased sympathetic compensation to active standing, it has not been studied in patients who underwent aortic valve replacement (AVR). The objective was to assess the association of the heart rate variability (HRV) [...] Read more.

(1) Background: Although all severe calcific aortic stenosis (SCAS) patients have decreased sympathetic compensation to active standing, it has not been studied in patients who underwent aortic valve replacement (AVR). The objective was to assess the association of the heart rate variability (HRV) response to an active orthostatic challenge before AVR with the risk of complications or death during the AVR postoperative period in patients with SCAS. (2) Methods: This observational study included 49 patients. The cardiac autonomic activity was assessed by HRV analysis during supine position and active standing (five minutes each). (3) Results: Twenty-four patients (48.9%) who presented outcomes (complication or death) had a greater left ventricular (LV) mass and a smaller magnitude of change during active standing in both the mean cardiac period and sympathetic predominance. Poor sympathetic compensation to active standing and LV mass were independently associated with the outcome odds ratio (OR) = 4.8 [(1.06, 21.8), p < 0.041] and 1.03 [(1.007, 1.062), p < 0.013], respectively. (4) Conclusions: In SCAS patients, poor sympathetic compensation in the face of orthostatic challenge and greater LV mass are associated with complications or death after AVR surgery. This approach offers an opportunity to find new criteria to reduce the surgical risk of these patients. Full article

(This article belongs to the Special Issue Cardiovascular Autonomic Function: From Bench to Bedside)

15 pages, 1507 KiB

Open AccessArticle

Understanding Mantle Edge Pigmentation Through Comprehensive Transcriptomic Profiling of the Chilean Oyster (Ostrea chilensis)

by Camila Godoy-Diaz, Katalina Llanos-Azócar, Gonzalo J. Ruiz-Tagle, Jorge E. Toro, Pablo A. Oyarzún and Juan A. Valdés

Biology 2025, 14(2), 145; https://doi.org/10.3390/biology14020145 - 30 Jan 2025

Abstract

The Chilean oyster (Ostrea chilensis) is a flat oyster native to Chile and New Zealand. Over-exploitation has led to local extinctions in some areas. Two phenotypes, distinguished by dark or white mantle edge pigmentation, have been identified, with the dark-edged mantle [...] Read more.

The Chilean oyster (Ostrea chilensis) is a flat oyster native to Chile and New Zealand. Over-exploitation has led to local extinctions in some areas. Two phenotypes, distinguished by dark or white mantle edge pigmentation, have been identified, with the dark-edged mantle oysters being more commercially valuable due to perceived quality. In this study, transcriptomic data were obtained from the mantles of both phenotypes. Total RNA was extracted of adult Chilean Oyster mantle, and samples were sequenced using HiSeq X Illumina technology. A total of 935,620,583 paired-end reads were de novo assembled, 50,908 transcripts produced, and a reference transcriptome created with 37.92% GC content and an N50 of 1929 bp. Functional annotation showed a total of 51,315 GO terms, with 21,322 annotations on Biological Process, 14,578 annotations on Molecular Functions, and 15,415 annotations on Cellular Component. The RNA-seq analysis revealed 746 differentially expressed transcripts, 573 up-regulated and 173 transcripts down-regulated, between dark- and white-mantle edge Chilean Oyster. KEGG enrichment analysis revealed notable differences in the expression profiles allowing the detection of differential expressed transcripts associated with specific pathways such as Ribosome, Citrate cycle, and Protein processing in endoplasmic reticulum. Other interesting differentially represented pathways include Tyrosine metabolism, Tryptophan metabolism, cAMP signaling pathway, ABC transporters, Notch signaling pathway, Endocytosis, and Calcium signaling pathway. This dataset provides a valuable molecular resource for O. chilensis and the understanding of the molecular mechanisms involved in mantle edge pigmentation. Full article

(This article belongs to the Special Issue Metabolic and Stress Responses in Aquatic Animals)

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25 pages, 7617 KiB

Open AccessArticle

Improvement Effects of Different Afforestation Measures on the Surface Soil of Alpine Sandy Land

by Shaobo Du, Huichun Xie, Gaosen Zhang, Feng Qiao, Guigong Geng and Chongyi E.

Biology 2025, 14(2), 144; https://doi.org/10.3390/biology14020144 - 30 Jan 2025

Abstract

Desertification severely impacts soil environments, necessitating effective control measures to improve sandy soil. On the alpine sandy land of Gonghe Basin, taking bare land containing mobile sand dunes (LD) as a reference, surface soil undergoing four afforestation measures, namely Salix cheilophila + [...] Read more.

Desertification severely impacts soil environments, necessitating effective control measures to improve sandy soil. On the alpine sandy land of Gonghe Basin, taking bare land containing mobile sand dunes (LD) as a reference, surface soil undergoing four afforestation measures, namely Salix cheilophila + Populus simonii (WLYY), Salix psammophila + Salix cheilophila (SLWL), Artemisia ordosica + Caragana korshinskii (SHNT), and Caragana korshinskii (NT80), was studied, with soil physicochemical properties and enzyme activity measured and the bacterial community structure analyzed using Illumina high-throughput sequencing. Compared to LD, all four afforestation measures significantly reduced the sand content, while increasing soil total carbon, total nitrogen, organic matter, alkali-hydrolyzable nitrogen, and available potassium. WLYY, SLWL, and SHNT significantly increased the surface soil total phosphorus and total potassium. Catalase, sucrase, urease, and alkaline phosphatase activities significantly increased under all four measures. Among them, the highest improvements were observed under SLWL, followed by WLYY. All treatments increased soil bacterial community richness, exhibiting significantly different bacterial community compositions to those in LD. Total phosphorus was the key physicochemical factor affecting the soil bacterial community structure, while enzyme activity was significantly correlated with the relative abundance of most major bacterial phyla. All measures improved the surface soil environment, with SLWL demonstrating the best improvement. The results provide valuable reference for sand prevention and control strategies in alpine sandy areas and offer a theoretical basis for the ecological restoration of sandy soil microenvironments. Full article

(This article belongs to the Special Issue Recent Advances in Soil Health: Influences of Organic Carbon and Microbiota)

30 pages, 7400 KiB

Open AccessReview

Melatonin from Plants: Going Beyond Traditional Central Nervous System Targeting—A Comprehensive Review of Its Unusual Health Benefits

by Lucas Fornari Laurindo, Otávio Augusto Garcia Simili, Adriano Cressoni Araújo, Elen Landgraf Guiguer, Rosa Direito, Vitor Engrácia Valenti, Vitor de Oliveira, Juliana Santos de Oliveira, José Luiz Yanaguizawa Junior, Jefferson Aparecido Dias, Durvanei Augusto Maria, Rose Eli Grassi Rici, Manuela dos Santos Bueno, Kátia Portero Sloan, Lance Alan Sloan and Sandra Maria Barbalho

Biology 2025, 14(2), 143; https://doi.org/10.3390/biology14020143 - 30 Jan 2025

Abstract

Melatonin is indispensable for the homeostasis of plants and animals. In humans, it can help prevent or be an adjuvant treatment for several diseases mainly related to the immune system, inflammation, and oxidative stress. Moreover, a melatonin-rich diet is linked to several health [...] Read more.

Melatonin is indispensable for the homeostasis of plants and animals. In humans, it can help prevent or be an adjuvant treatment for several diseases mainly related to the immune system, inflammation, and oxidative stress. Moreover, a melatonin-rich diet is linked to several health benefits, such as regulation of circadian rhythm, regulation of the immunological system, epilepsy control, delaying the aging process, and diminishing hormones related to cancer. This review aimed to show the effects of melatonin in diseases beyond its traditional use. The results showed it can present scavenging of free radicals, reducing inflammatory cytokines, and modulating the immune system. Moreover, it can improve insulin resistance, blood pressure, LDL-c, adipose tissue mass, adhesion molecules, endothelial impairment, and plaque formation. These effects result in neuro- and cardioprotection, improvement of liver diseases, rheumatoid arthritis, dermatitis, COVID-19, polycystic ovaries, and sepsis. We conclude that plant melatonin can benefit patients with many diseases besides sleep problems and neurodegeneration. Plant melatonin may be more cost-effective and present fewer adverse events than synthetic. However, more clinical trials should be performed to show adequate doses, formulation, and treatment time. Full article

(This article belongs to the Special Issue Plant Natural Products: Mechanisms of Action for Promoting Health)

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19 pages, 2390 KiB

Open AccessArticle

The Drivers of Mesozoic Neoselachian Success and Resilience

by Manuel Andreas Staggl, Carlos De Gracia, Faviel A. López-Romero, Sebastian Stumpf, Eduardo Villalobos-Segura, Michael J. Benton and Jürgen Kriwet

Biology 2025, 14(2), 142; https://doi.org/10.3390/biology14020142 - 30 Jan 2025

Abstract

The modern diversity of sharks, skates, and rays (Neoselachii) is the result of various diversification and extinction events during the Mesozoic (252–66 Ma). However, the key drivers of their diversity patterns remain poorly understood despite all the progress that has been accomplished in [...] Read more.

The modern diversity of sharks, skates, and rays (Neoselachii) is the result of various diversification and extinction events during the Mesozoic (252–66 Ma). However, the key drivers of their diversity patterns remain poorly understood despite all the progress that has been accomplished in recent years. Here, we show that the interplay of climatic- and tectonic-linked trajectories, resulting in a high shallow marine habitat availability and lower atmospheric CO₂ concentration, were significant drivers and sustainers of Mesozoic neoselachian diversity. We show, for the first time, that higher atmospheric CO₂ content negatively affected neoselachian diversity in the past. The recognized gradual faunal changes throughout the Mesozoic and the two major diversification events during the Jurassic and Cretaceous, respectively, ultimately cumulated in an all-time diversity high in the Palaeogene despite the events during the end-Cretaceous extinction event, highlighting their remarkable resilience and adaptability despite severe environmental challenges. We thus provide novel perspectives on the processes underlying neoselachian diversification since the Mesozoic that contribute importantly to a better understanding of the selective forces that have shaped the long-term evolution and diversification of neoselachians. Given their vital role in modern ecosystems, our results provide information about possible future trends in the face of the current climate crisis. Full article

(This article belongs to the Section Zoology)

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19 pages, 1950 KiB

Open AccessArticle

Metabolic Activity of Invasive Apple Snails Negatively Affects the Survival of Native Benthic Snail in Mangrove

by Jinling Liu, Caiying Zhang, Huixiu Yu, Zixin Fu, Huizhen Xie, Yiming Wang, Benliang Zhao, Qing Li, Kailin Kuang and Huanting Lin

Biology 2025, 14(2), 141; https://doi.org/10.3390/biology14020141 - 29 Jan 2025

Abstract

The golden apple snail (GAS, Pomacea canaliculata) has invaded mangrove forests. The effect of water contaminated by metabolic activity of GAS feeding on Acanthus ilicifolius (T1), Sonneratia apetala (T2), and without food (CK) on the native mangrove black helmet snail (BHS, Neritina [...] Read more.

The golden apple snail (GAS, Pomacea canaliculata) has invaded mangrove forests. The effect of water contaminated by metabolic activity of GAS feeding on Acanthus ilicifolius (T1), Sonneratia apetala (T2), and without food (CK) on the native mangrove black helmet snail (BHS, Neritina pulligera) was investigated under salinity conditions. The GAS deteriorated saline water quality (2.5‰). DO contents in T1 and T2 approached zero at 9 d. Compared to CK, the contents of COD, total N, NH₄⁺, NO₃⁻, and total P of the contaminated water in T1 increased by 297%, 205%, 262%, 210%, and 518% after 9 d, while these indicators in T2 increased by 74%, 31%, 57%, 326%, and 154%, respectively. The LC₅₀ of the contaminated water in T1 against the BHS reached 22.72%. The weight of the BHS exposed to the 100% contaminated water in T1 and T2 significantly decreased after exposure. The content of GPT of the BHS exposed to the 100%-contaminated water in T1 and T2 increased by 55% and 26%, while the MDA content increased by 38% and 34%. The 100%-contaminated water in T1 led to cell degeneration and incomplete structure in the hepatopancreas tissue of the BHS. The GAS feeding on holly mangroves can compete against native mangrove snails through water deterioration. Full article

(This article belongs to the Special Issue 2nd Edition: Aquatic Alien Invasions and Their Impact on Biodiversity and Ecosystem Services )

15 pages, 904 KiB

Open AccessArticle

Two Demosponges as Promising Bioremediators of a Potential Pathogenic Vibrio

by Joseba Aguilo-Arce, Maria Scrascia, Roberta Trani, Carlo Pazzani, Pere Ferriol and Caterina Longo

Biology 2025, 14(2), 140; https://doi.org/10.3390/biology14020140 - 29 Jan 2025

Abstract

Marine sponges play a fundamental role in the proper functioning of the ecosystem by filtering organic matter and contributing to nutrient fluxes. These animals have been proposed as efficient bioremediators of microbiological contamination in various environmental conditions subjected by anthropogenic pressure. In the [...] Read more.

Marine sponges play a fundamental role in the proper functioning of the ecosystem by filtering organic matter and contributing to nutrient fluxes. These animals have been proposed as efficient bioremediators of microbiological contamination in various environmental conditions subjected by anthropogenic pressure. In the present study, the bioremediation potential of the demosponges Aplysina aerophoba and Geodia cydonium was analyzed ex situ. For this purpose, the viable count of an antibiotic-resistant bacterial strain belonging to the species Vibrio parahaemolyticus was assessed in presence of the selected sponge species. Although some sponge individuals showed closed oscula during the first hours of the experiment, A. aerophoba and G. cydonium reduced the bacterial load in the seawater up to five orders of magnitude in 72 h. In addition, they had high clearance rates and retention efficiencies, with almost complete removal of the tested bacteria. Low Vibrio concentrations were observed in all tanks after six days, suggesting no excretion of viable Vibrio from sponges. These results corroborate the usefulness of A. aerophoba and G. cydonium as bioremediators of bacteria and therefore appear to be ideal candidates for bioremediation purposes in anthropogenic environments, such as aquaculture facilities, where multidrug-resistant bacteria may play a role in the spread of antimicrobial resistance. Full article

(This article belongs to the Special Issue Aquatic Economic Animal Breeding and Healthy Farming)

16 pages, 1358 KiB

Open AccessArticle

Rubus Coreanus Enhances Peri-Implant Bone Healing and Biomineralization in Ovariectomized and Healthy Rats

by Naara Gabriela Monteiro, Odir Nunes de Oliveira-Filho, Maria Isabela Lopes Gandolfo, Ana Cláudia Ervolino da Silva, Letícia Pitol-Palin, Paulo Roberto Botacin, Gabriel Mulinari-Santos, Fábio Roberto de Souza Batista and Roberta Okamoto

Biology 2025, 14(2), 139; https://doi.org/10.3390/biology14020139 - 29 Jan 2025

Abstract

Estrogen deficiency contributes to osteoporosis and can therefore compromise the peri-implant bone. Hence, this study evaluated peri-implant bone healing when Rubus coreanus (RC) was administered orally in ovariectomized and healthy rats. Forty 4-month-old female rats were divided into four groups: SHAM (healthy rats), [...] Read more.

Estrogen deficiency contributes to osteoporosis and can therefore compromise the peri-implant bone. Hence, this study evaluated peri-implant bone healing when Rubus coreanus (RC) was administered orally in ovariectomized and healthy rats. Forty 4-month-old female rats were divided into four groups: SHAM (healthy rats), SHAM/RC (healthy rats treated with RC), OVX (ovariectomized rats), and OVX/RC (ovariectomized rats treated with RC). The oral administration of RC started thirty days after ovariectomy, and implant placement into the rat tibia occurred ninety days after the ovariectomy. Euthanasia occurred sixty days after implantation. The analyses performed included removal torque, RT-PCR, confocal microscopy, and immunolabeling. A significance level of p < 0.05 was considered for all tests. The highest reverse torque values were observed in the SHAM/RC group, followed by the OVX/RC group. Confocal microscopy showed the greatest bone biomineralization in the SHAM/RC group, followed by the OVX/RC group. RT-PCR data indicated that RC decreased the RANKL/OPG ratio in both conditions. Immunohistochemistry demonstrated a balance between bone formation and resorption in all groups, especially stimulating osteoblastogenesis in both treated groups. In conclusion, RC enhanced peri-implant bone healing and biomineralization in both healthy and ovariectomized rats, with stronger effects in healthy rats, suggesting that estrogen may enhance its efficacy. These findings support RC’s potential as a prophylactic and therapeutic agent. Full article

(This article belongs to the Special Issue Novel Insights of Bone Repair: Strategies for Improvement, Microscopic, Molecular and Ultrastrastructural Aspects)

15 pages, 2478 KiB

Open AccessArticle

Cost-Effective Detection of SNPs and Structural Variations in Full-Length Genes of Wheat and Sunflower Using Multiplex PCR and Rapid Nanopore Kit

by Ekaterina Polkhovskaya, Evgeniy Moskalev, Pavel Merkulov, Ksenia Dudnikova, Maxim Dudnikov, Ivan Gruzdev, Yakov Demurin, Alexander Soloviev and Ilya Kirov

Biology 2025, 14(2), 138; https://doi.org/10.3390/biology14020138 - 29 Jan 2025

Abstract

The rapid identification of allele variants in target genes is crucial for accelerating marker-assisted selection (MAS) in plant breeding. Although current high-throughput genotyping methods are efficient in detecting known polymorphisms, they are limited when multiple variant sites are scattered along the gene. This [...] Read more.

The rapid identification of allele variants in target genes is crucial for accelerating marker-assisted selection (MAS) in plant breeding. Although current high-throughput genotyping methods are efficient in detecting known polymorphisms, they are limited when multiple variant sites are scattered along the gene. This study presents a target amplicon sequencing approach using Oxford Nanopore Technologies (ONT-TAS) to rapidly sequence full-length genes and identify allele variants in sunflower and wheat collections. This procedure combines multiplex PCR and a rapid sequencing kit, significantly reducing the time and cost compared to previous methods. The efficiency of the approach was demonstrated by sequencing four genes (Ahasl1, Ahasl2, Ahasl3, and FAD2) in 40 sunflower genotypes and three genes (Ppo, Wx, and Lox) in 30 wheat genotypes. The ONT-TAS revealed a complete picture of SNPs and InDels distributed over the individual alleles, enabling rapid (4.5 h for PCR and sequencing) characterization of the genetic diversity of the target genes in the germplasm collections. The results showed a significant diversity of the Ahasl1/Ahasl3 and Wx-A/Lox-B genes in the sunflower and wheat collections, respectively. This method offers a high-throughput, cost-effective (USD 3.4 per gene) solution for genotyping and identifying novel allele variants in plant breeding programs. Full article

(This article belongs to the Special Issue Genetics and Cell Biology in Crop Improvement)

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13 pages, 518 KiB

Open AccessArticle

PPARγ Expression in Human Spermatozoa and Its Relationship with Seminal F₂-Isoprostanes and Resolvin D1 in the Presence of Varicocele and Urogenital Infections

by Giulia Collodel, Elena Moretti, Caterina Marcucci, Laura Liguori, Daniela Marchini, Roberta Corsaro, Gabriele Centini and Cinzia Signorini

Biology 2025, 14(2), 137; https://doi.org/10.3390/biology14020137 - 28 Jan 2025

Abstract

Peroxisome Proliferator-Activated Receptor Gamma (PPARγ) is a regulating agent in antioxidant response also involved in controlling inflammation. The impact of varicocele and urogenital infections on sperm PPARγ expression was studied. The PPARγ gene expression was investigated in spermatozoa of 26 normozoospermic men grouped [...] Read more.

Peroxisome Proliferator-Activated Receptor Gamma (PPARγ) is a regulating agent in antioxidant response also involved in controlling inflammation. The impact of varicocele and urogenital infections on sperm PPARγ expression was studied. The PPARγ gene expression was investigated in spermatozoa of 26 normozoospermic men grouped according to their clinical conditions: normal semen parameters (N), normal semen parameters and varicocele (N + V), and normal semen parameters and urogenital infections (N + UI). Sperm PPARγ expression was correlated with F₂-isoprostanes (F₂-IsoPs), as markers of lipid peroxidation, and Resolvin D1 (RvD1), a pro-resolving mediator in inflammation. Sperm PPARγ expression was evaluated through comparative real-time PCR, and F₂-IsoPs and RvD1 were quantified in the seminal plasma via GC/NCI-MS/MS and immunoassay, respectively. PPARγ expression correlates positively with sperm morphology and vitality and negatively with F₂-IsoPs and RvD1. Sperm morphology positively correlates with vitality and negatively with F₂-IsoP and RvD1 levels. Despite the normozoospermia in the three examined groups, sperm morphology and PPARγ expression were significantly reduced in N + V and N + UI groups compared to the N group. Additionally, F₂-IsoP and RvD1 levels were elevated in N + V and N + UI patients. These data suggest that PPARγ expression is compromised by inflammation and lipoperoxidation, providing new insights to further explore new possibilities of targeted treatment of male infertility. Full article

(This article belongs to the Section Developmental and Reproductive Biology)

16 pages, 1617 KiB

Open AccessArticle

Impact of Ad Libitum Hydration on Muscle and Liver Damage and Electrolyte Balance in Ultra-Trail Events: A Heatmap Analysis of Biomarkers and Event Characteristics—A Pilot Study

by Alejandro García-Giménez, Francisco Pradas, Miguel Lecina, Nicolae Ochiana and Carlos Castellar-Otín

Biology 2025, 14(2), 136; https://doi.org/10.3390/biology14020136 - 28 Jan 2025

Abstract

Ultra-trail events (UTs) pose significant challenges to maintaining hydration and electrolyte balance, with risks of dehydration (DH), overhydration (OH), exercise-associated hyponatremia (EAH), and exertional rhabdomyolysis (ER). This study examined the effects of ad libitum (ADL) hydration on hydration status and muscle damage during [...] Read more.

Ultra-trail events (UTs) pose significant challenges to maintaining hydration and electrolyte balance, with risks of dehydration (DH), overhydration (OH), exercise-associated hyponatremia (EAH), and exertional rhabdomyolysis (ER). This study examined the effects of ad libitum (ADL) hydration on hydration status and muscle damage during a nine-stage UT (635 km, 40,586 m elevation gain). Four highly trained male athletes participated. Hydration was assessed via body weight loss (BWL), urine specific gravity (U_sg), and serum sodium ([Na+]), while muscle damage markers included creatine kinase (CK), lactate dehydrogenase (LDH), and calcium (Ca), and liver damage biomarkers included aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Our results showed no cases of EAH or hypernatremia ([Na+] > 145 mmol·L⁻¹), with serum [Na+] maintained above 135 mmol·L⁻¹. BWL exceeded the 2% DH threshold in early stages (p = 0.029), and U_sg remained elevated (>1.020 g·mL⁻¹). LDH and CK significantly increased at all stages (p < 0.05), persisting for 48 h post-event. Correlations showed BWL aggravated muscle damage (r = 0.47 with CK) and hypocalcemia (r = −0.68 with Ca). Elevation gain/loss amplified fluid loss and muscle injury. While ADL hydration mitigated EAH, it did not fully address DH or muscle damage. Personalized hydration and recovery protocols are crucial to optimizing performance and health in UT events. Full article

(This article belongs to the Special Issue New Insights into Skeletal Muscle Metabolism in Pathological and Physiological Conditions)

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