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Horticultural Plant Physiology and Molecular Biology
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Horticultural Plant Physiology and Molecular Biology

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Horticultural Science and Ornamental Plants".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 2404

Special Issue Editor

Dr. Shengjun Feng

E-Mail Website
Guest Editor
College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
Interests: Cucurbitaceae crops; molecular breeding; agronomic traits; epigenetic regulation; epigenetic mechanisms; heavy metal tolerance; metal ion absorption and distribution; cadmium
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Horticulture, inexorably tied to biology, studies the theories and techniques of breeding and cultivation and the physiology of fruit trees, vegetables, ornamental plants, and tea, serving both the horticultural industry and researchers. However, with the continuous development and upgrading of the horticultural industry and research in this field, higher requirements have been put forward for the development of the horticulture profession.

In the past few decades, research directions dominated by plant physiology have promoted the development of basic research and applied science of horticultural crops. However, after entering the new century, molecular biology has flourished, and biotechnology has been widely used in horticultural industry and research. Both for the industry and for horticultural research, higher requirements have been put forward for the development of horticulture, which requires a certain theoretical basis of molecular biology on the basis of traditional plant physiology to explore the unique molecular biology and frontier development of horticultural plants.

This Special Issue aims to gather together research articles and reviews on the physiology and molecular biology of important traits of horticultural crops, summarize the research progress of the formation of unique agronomic traits of horticultural crops, and present the latest progress on the extensive role of plant physiology and molecular biology in the growth, development, comprehensive metabolism, and environmental interaction of horticultural crops.

Dr. Shengjun Feng
Guest Editor

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. Plants is an international peer-reviewed open access semimonthly 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 2700 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

  • plant molecular biology
  • plant physiology
  • environmental response
  • secondary metabolism
  • growth and development
  • signal pathway

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Published Papers (3 papers)

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Research

24 pages, 9624 KiB  
Article
Expression Profiling Analysis of the SWEET Gene Family in In Vitro Pitaya Under Low-Temperature Stress and Study of Its Cold Resistance Mechanism
by Youjie Liu, Hanyao Zhang, Ke Zhao, Xiuqing Wei, Liang Li, Yajun Tang, Yueming Xiong and Jiahui Xu
Plants 2024, 13(21), 3092; https://doi.org/10.3390/plants13213092 - 2 Nov 2024
Viewed by 840
Abstract
Pitaya (Hylocereus undatus) fruit is an attractive, nutrient-rich tropical fruit with commercial value. However, low-temperature stress severely affects the yield and quality of pitaya. The relevant mechanisms involved in the response of pitaya to low-temperature stress remain unclear. To study whether [...] Read more.
Pitaya (Hylocereus undatus) fruit is an attractive, nutrient-rich tropical fruit with commercial value. However, low-temperature stress severely affects the yield and quality of pitaya. The relevant mechanisms involved in the response of pitaya to low-temperature stress remain unclear. To study whether the SWEET gene family mediates the response of H. undatus to low-temperature stress and the related mechanisms, we performed genome-wide identification of the SWEET gene family in pitaya, and we used ‘Baiyulong’ tissue-cultured plantlets as material in the present study. We identified 28 members of the SWEET gene family from the H. undatus genome and divided these family members into four groups. Members of this gene family presented some differences in the sequences of introns and exons, but the gene structure, especially the motifs, presented relatively conserved characteristics. The promoter regions of most HuSWEETs have multiple stress- or hormone-related cis-elements. Three duplicated gene pairs were identified, including one tandem duplication gene and two fragment duplication gene pairs. The results revealed that the SWEET genes may regulate the transport and distribution of soluble sugars in plants; indirectly regulate the enzyme activities of CAT, POD, and T-SOD through its expression products; and are involved in the response of pitaya to low-temperature stress and play vital roles in this process. After ABA and MeJA treatment, the expression of HuSWEETs changed significantly, and the cold stress was also alleviated. This study elucidated the molecular mechanism and physiological changes in the SWEET gene in sugar metabolism and distribution of pitaya when it experiences low-temperature stress and provided a theoretical basis for cold-resistant pitaya variety breeding. Full article
(This article belongs to the Special Issue Horticultural Plant Physiology and Molecular Biology)
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17 pages, 4949 KiB  
Article
Effects of Different LED Spectra on the Antioxidant Capacity and Nitrogen Metabolism of Chinese Cabbage (Brassica rapa L. ssp. Pekinensis)
by Jie Li, Yubing Liu, Junwei Wang, Mingyue Liu, Yanling Li and Jingyuan Zheng
Plants 2024, 13(21), 2958; https://doi.org/10.3390/plants13212958 - 23 Oct 2024
Viewed by 631
Abstract
Light quality optimization is a cost-effective method for increasing leafy vegetable quality in plant factories. Light-emitting diodes (LEDs) that enable the precise modulation of light quality were used in this study to examine the effects of red-blue (RB), red-blue-green (RBG), red-blue-purple (RBP), and [...] Read more.
Light quality optimization is a cost-effective method for increasing leafy vegetable quality in plant factories. Light-emitting diodes (LEDs) that enable the precise modulation of light quality were used in this study to examine the effects of red-blue (RB), red-blue-green (RBG), red-blue-purple (RBP), and red-blue-far-red (RBF) lights on the growth, antioxidant capacity, and nitrogen metabolism of Chinese cabbage leaves, while white light served as the control (CK). Results showed that the chlorophyll, carotenoid, vitamin C, amino acid, total flavonoid, and antioxidant levels of Chinese cabbage were all significantly increased under RBP combined light treatment. Meanwhile, RBG combined light treatment significantly increased the levels of amino acids but decreased the nitrite content of Chinese cabbage. In addition, RBF combined light treatment remarkably increased the amino acid levels but decreased the antioxidant capacity of Chinese cabbage. In conclusion, the addition of purple light to red-blue light was effective in improving the nutritional value and antioxidant capacity of Chinese cabbage. This light condition can be used as a model for a supplemental lighting strategy for leafy vegetables in plant factory production. Full article
(This article belongs to the Special Issue Horticultural Plant Physiology and Molecular Biology)
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19 pages, 9212 KiB  
Article
Knockdown of SlYTHDF2 Accelerates Dark–Induced Tomato Leaf Senescence by Affecting the ABA Pathway
by Xinru Chen, Zihan Gao, Yangyang Li, Xiaoqian Nie, Qiaoli Xie, Guoping Chen and Zongli Hu
Plants 2024, 13(19), 2800; https://doi.org/10.3390/plants13192800 - 6 Oct 2024
Viewed by 719
Abstract
N6–methyladenosine (m6A) is a widespread post–transcriptional modification in eukaryotic mRNAs. Proteins with the YTH structural domain act as m6A–binding proteins by recognizing the m6A modification and regulating mRNA through this recognition. In this study, SlYTHDF2, a [...] Read more.
N6–methyladenosine (m6A) is a widespread post–transcriptional modification in eukaryotic mRNAs. Proteins with the YTH structural domain act as m6A–binding proteins by recognizing the m6A modification and regulating mRNA through this recognition. In this study, SlYTHDF2, a prototypical m6A –binding protein gene in the YTH family was expressed in various tissues, and subcellular localization analyses indicated that the SlYTHDF2 protein was localized in the nucleus and cytoplasm. SlYTHDF2 knockout lines were obtained using CRISPR/Cas9 technology and showed the senesced leaves prematurely increased endogenous ABA accumulation compared with the wild type. Moreover, we found that dark promoted leaf senescence in SlYTHDF2 knockout lines and exogenous ABA further accelerated leaf senescence under dark conditions. The qRT–PCR analysis revealed significant alterations in the expression of genes associated with the ABA pathway. Relative to the wild type, the CR–slythdf2 plants exhibited reduced levels of photosynthetic pigments, higher accumulation of reactive oxygen species, and increased damage to cell membranes. Additionally, we discovered that SlYTHDF2 interacts with the chloroplast–binding protein SlRBCS3 through yeast two–hybrid and BiFC experiments. Overall, our data suggest the important role of SlYTHDF2 in regulating tomato leaf senescence. Full article
(This article belongs to the Special Issue Horticultural Plant Physiology and Molecular Biology)
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