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Horticulturae
Special Issues
Modernizing Horticultural Crop Improvement for Enhanced Yields and Quality
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Modernizing Horticultural Crop Improvement for Enhanced Yields and Quality

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Genetics, Genomics, Breeding, and Biotechnology (G2B2)".

Deadline for manuscript submissions: closed (15 September 2024) | Viewed by 2978

Special Issue Editors

Dr. Guofei Tan

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Guest Editor
Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
Interests: vegetable production; horticulture; biotechnology; gene; breeding
Prof. Dr. Lifei Chen

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Guest Editor
College of Horticulture, Jilin Agricultural University, Changchun 130118, China
Interests: ornamental horticulture; biotechnology

Special Issue Information

Dear Colleagues,

Light, temperature, water, fertilizer, climate, soil, variety, cultivation techniques, and management methods all affect the yield and quality of horticultural crops. Improving the yield and quality of horticultural crops is needed to meet people's demand for high-quality and diverse horticultural products. The utilization of fertilizers, pesticides, hormones, and agricultural films not only satisfies horticultural production, but also becomes increasingly environmentally unfriendly. At the same time, the use of modern biotechnology such as tissue culture, genetically modified organisms, and gene knockout in horticultural crops is becoming increasingly evident. However, ensuring the safe utilization of biotechnology in horticultural crops is a long-term and worthy hot topic of biological research. How to balance safety, efficiency, sustainability, yield, and quality of horticultural crops requires in-depth research from various aspects.

This Special Issue, entitled “Modernizing Horticultural Crop Improvement for Enhanced Yields and Quality”, will focus on the utilization of new technologies, methods, models, and germplasm resources for safe, efficient, and sustainable improvement of horticultural crop yield and quality.

We invite researchers to contribute both original research articles and reviews to this Special Issue.

Dr. Guofei Tan
Prof. Dr. Lifei Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • horticultural crop
  • technologies
  • methods
  • models
  • germplasm resources

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Published Papers (3 papers)

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Research

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17 pages, 9784 KiB  
Article
Genome-Wide Isolation of VIN Gene Family and Functional Identification of HpVIN4 in Red Pitaya (Hylocereus polyrhizus)
by Qian-Ming Zheng, Hong-Lin Wang, Shuang Yan and Pu Xie
Horticulturae 2024, 10(8), 833; https://doi.org/10.3390/horticulturae10080833 - 6 Aug 2024
Viewed by 660
Abstract
Soluble sugars, including glucose, fructose and sucrose, are the most important determinants that affect the flavor and quality of red pitaya (Hylocereus polyrhizus) fruit. Vacuolar invertase (VIN), which catalyzes sucrose hydrolysis into glucose and fructose, is a key type of enzyme [...] Read more.
Soluble sugars, including glucose, fructose and sucrose, are the most important determinants that affect the flavor and quality of red pitaya (Hylocereus polyrhizus) fruit. Vacuolar invertase (VIN), which catalyzes sucrose hydrolysis into glucose and fructose, is a key type of enzyme responsible for soluble sugar metabolism in plant growth and development. Herein, we conducted genome-wide identification, gene expression analysis, subcellular localization and an enzymatic properties assay for the VIN-encoding genes from red pitaya. During red pitaya fruit development towards ripening, the enzymatic activities of VIN showed an up-regulated trend towards ripening. In total, four isoforms (HpVIN1–4) of the VIN-encoding gene were identified from the pitaya genome. Sequence alignment results revealed that the HpVIN1, HpVIN3 and HpVIN4 proteins contained essential motifs for targeting the vacuole and conserved motifs or residues responsible for sucrose binding and hydrolysis. Gene expression pattern analyses revealed that the level of HpVIN4 was obviously increasing during fruit development and acted as the most abundant VIN isoform towards ripening. Subcellular localization detection via transient expression in Arabidopsis thaliana mesophyll protoplasts revealed that the HpVIN4 protein was localized in the vacuole. Growth complementation tests of heterologous expression in the invertase-deficient baker’s yeast strain suggested that the HpVIN4 protein had a sucrose hydrolysis activity and could restore the yeast growth in vivo. The identification of enzymatic properties in vitro demonstrated that the HpVIN4 protein could degrade sucrose into glucose and fructose with an optimum pH of 4.0. Specifically, the HpVIN4 protein had an estimated Km value of 5.15 ± 1.03 mmol·L−1 for sucrose hydrolysis. Ultimately, this study provides a comprehensive understanding of the potential roles of VINs during fruit development and towards ripening and provides functional gene resources for regulating soluble sugar accumulation in red pitaya fruit. Full article
(This article belongs to the Special Issue Modernizing Horticultural Crop Improvement for Enhanced Yields and Quality)
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18 pages, 11716 KiB  
Article
Iris typhifolia Responses to Saline–Alkali Stress: Germination, Antioxidant Activity, Hormones, and Photosynthetic Performance
by Lifei Chen, Jiahui Yu, Xi Lu, Qi Wang, Shizhuo Wang, Yuze Shan, Yang Liu, Yuan Meng and Yunwei Zhou
Horticulturae 2024, 10(6), 588; https://doi.org/10.3390/horticulturae10060588 - 4 Jun 2024
Cited by 1 | Viewed by 803
Abstract
Iris typhifolia Kitag is a perennial herbaceous species with high ornamental and applied value. Elucidating the mechanism of saline–alkali tolerance in Iris is crucial for their promotion in saline–alkali areas. Saline–alkali stress is one of the factors that affects plant growth, which has [...] Read more.
Iris typhifolia Kitag is a perennial herbaceous species with high ornamental and applied value. Elucidating the mechanism of saline–alkali tolerance in Iris is crucial for their promotion in saline–alkali areas. Saline–alkali stress is one of the factors that affects plant growth, which has become a significant global issue. In this study, we measured the physiological and biochemical indexes of I. typhifolia, through germination and potting trials, to evaluate the resistance of I. typhifolia to different levels of artificial saline–alkali stress (0, 50, 100, 150, and 200 mmol·L−1). The results showed that artificial saline–alkali stress negatively impacted germination parameters, cell membrane integrity, and photosynthetic parameters. Different trends in osmoregulatory substances and endogenous hormones were observed. It was shown that I. typhifolia had a potential adaptability to the saline–alkali environment by enhancing its internal defense mechanism. Based on regression analyses, the germination threshold of I. typhifolia was calculated to be 87.15 mmol·L−1, which provided a theoretical basis for the application in soil saline–alkalization areas. Full article
(This article belongs to the Special Issue Modernizing Horticultural Crop Improvement for Enhanced Yields and Quality)
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Review

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18 pages, 4997 KiB  
Review
Advancements in Molecular Mechanism Research on Bolting Traits in Vegetable Crops
by Guo-Fei Tan, Qing Luo, Shun-Hua Zhu, Xiu-Lai Zhong, Ping-Hong Meng, Meng-Yao Li, Zhi-Feng Chen and Ai-Sheng Xiong
Horticulturae 2024, 10(7), 670; https://doi.org/10.3390/horticulturae10070670 - 25 Jun 2024
Viewed by 870
Abstract
Bolting and flowering of vegetables are induced by vernalization in their early growth stage. This phenomenon is called premature bolting, and it has caused massive losses in production of vegetables such as cabbage, celery, carrot, radish, and spinach, etc. This review aimed to [...] Read more.
Bolting and flowering of vegetables are induced by vernalization in their early growth stage. This phenomenon is called premature bolting, and it has caused massive losses in production of vegetables such as cabbage, celery, carrot, radish, and spinach, etc. This review aimed to summarize studies on bolting and flowering pathways, physiological and biochemical changes, and underlined molecular mechanisms of various vegetable crop bolting involving genome and transcriptome analysis, and its association with vegetable breeding. This review could provide basic knowledge to carry out research on vegetable genetics and breeding and vegetable cultivation. Full article
(This article belongs to the Special Issue Modernizing Horticultural Crop Improvement for Enhanced Yields and Quality)
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