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Plants
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Molecular Mechanisms Associated with Plant Tolerance upon Abiotic Stress
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Molecular Mechanisms Associated with Plant Tolerance upon Abiotic Stress

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: 15 July 2024 | Viewed by 3478

Special Issue Editor

Prof. Dr. Emilia Apostolova

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Guest Editor
Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria
Interests: photosynthesis; abiotic stress and adaptation mechanisms in plants; signal molecules; organization of the photosynthetic apparatus
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plants in their development are exposed to various abiotic stress factors that have negative effects on plant growth and crop productivity. Stress-induced damage in proteins, lipids and nucleic acids leads to an increased accumulation of reactive oxygen species (ROS), which cause oxidative damage. One process in plants that is strongly affected under stress is photosynthesis. The impact of stress factors on plants depends on their intensity, frequency and duration, as well as the plant species. Plants evolve different adaptation mechanisms to survive the harmful effects of the environment. Studies in past years have revealed that plants have different sensitivities to stress factors. Despite many studies working to elucidate the mechanisms of plant tolerance to abiotic stress factors, the exact mechanisms are not fully understood. Therefore, the study of the influence of abiotic stress factors on the growth, physiology, biochemistry and photosynthesis of different plant species is of great importance in order to clarify the mechanisms of tolerance in plants.

This Special Issue aims to show the molecular mechanisms associated with plant tolerance upon various abiotic stresses, such as salinity, drought, temperature, ultraviolet radiation and heavy metals.

Scientists from all over the world are invited to submit original research and review articles on topics related to plant defense mechanisms.

Prof. Dr. Emilia Apostolova
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.

Published Papers (3 papers)

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Research

13 pages, 1599 KiB  
Article
Genome-Wide Identification and Analysis of ZF-HD Gene Family in Moso Bamboo (Phyllostachys edulis)
by Feiyi Huang, Jiaxin Wang and Chao Tang
Plants 2023, 12(23), 4064; https://doi.org/10.3390/plants12234064 - 03 Dec 2023
Viewed by 1026
Abstract
Zinc finger-homeodomain (ZF-HD) proteins play essential roles in plant growth, development and stress responses. However, knowledge of the expression and evolutionary history of ZF-HD genes in moso bamboo remains limited. In this study, a total of 24 ZF-HD genes were found unevenly distributed [...] Read more.
Zinc finger-homeodomain (ZF-HD) proteins play essential roles in plant growth, development and stress responses. However, knowledge of the expression and evolutionary history of ZF-HD genes in moso bamboo remains limited. In this study, a total of 24 ZF-HD genes were found unevenly distributed on 12 chromosomes in moso bamboo (Phyllostachys edulis). Phylogenetic analysis indicated that PeZF-HDs were divided into two subfamilies: ZHD and MIF. The ZHD subfamily genes were further classified into seven groups according to their orthologous relationships among the rice and Arabidopsis ZF-HD gene family. The gene structures and conserved motifs of PeZF-HDs were analyzed. Whole-genome duplication (WGD) or segmental duplication promoted the evolution and expansion of the moso bamboo ZF-HD gene family. Ka/Ks ratios suggested that the twenty-four duplication pairs had undergone purifying selection. Promoter analysis showed that most PeZF-HDs contained cis-elements associated with stress responses and hormones. Expression analysis demonstrated that many PeZF-HDs were responsive to abiotic stress treatment. Overall, this work investigated PeZF-HD genes in moso bamboo using bioinformatic approaches. The evolutionary research on gene structure, motif distribution and cis-regulatory elements indicated that PeZF-HDs play distinct roles in biological processes, which provides a theoretical basis for exploring the physiological functions of ZF-HDs and selecting candidate stress-related genes in moso bamboo. Full article
(This article belongs to the Special Issue Molecular Mechanisms Associated with Plant Tolerance upon Abiotic Stress)
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17 pages, 8438 KiB  
Article
Genome-Wide Identification and Characterization of the NAC Gene Family and Its Involvement in Cold Response in Dendrobium officinale
by Qianyu Yang, Zhihui Li, Xiao Wang, Chunqian Jiang, Feihong Liu, Yuxin Nian, Xiaoyun Fu, Guangzhu Zhou, Lei Liu and Hui Wang
Plants 2023, 12(20), 3626; https://doi.org/10.3390/plants12203626 - 20 Oct 2023
Cited by 3 | Viewed by 1113
Abstract
The NAC (NAM, ATAF1/2 and CUC2) gene family is one of the largest plant-specific transcription factor families, functioning as crucial regulators in diverse biological processes such as plant growth and development as well as biotic and abiotic stress responses. Although it has been [...] Read more.
The NAC (NAM, ATAF1/2 and CUC2) gene family is one of the largest plant-specific transcription factor families, functioning as crucial regulators in diverse biological processes such as plant growth and development as well as biotic and abiotic stress responses. Although it has been widely characterized in many plants, the significance of the NAC family in Dendrobium officinale remained elusive up to now. In this study, a genome-wide search method was conducted to identify NAC genes in Dendrobium officinale (DoNACs) and a total of 110 putative DoNACs were obtained. Phylogenetic analysis classified them into 15 subfamilies according to the nomenclature in Arabidopsis and rice. The members in the subfamilies shared more similar gene structures and conversed protein domain compositions. Furthermore, the expression profiles of these DoNACs were investigated in diverse tissues and under cold stress by RNA-seq data. Then, a total of five up-regulated and five down-regulated, cold-responsive DoNACs were validated through QRT-PCR analysis, demonstrating they were involved in regulating cold stress response. Additionally, the subcellular localization of two down-regulated candidates (DoNAC39 and DoNAC58) was demonstrated to be localized in the nuclei. This study reported the genomic organization, protein domain compositions and expression patterns of the NAC family in Dendrobium officinale, which provided targets for further functional studies of DoNACs and also contributed to the dissection of the role of NAC in regulating cold tolerance in Dendrobium officinale. Full article
(This article belongs to the Special Issue Molecular Mechanisms Associated with Plant Tolerance upon Abiotic Stress)
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14 pages, 2182 KiB  
Article
Biochemical Alterations in Triticale Seedlings Pretreated with Selective Herbicide and Subjected to Drought or Waterlogging Stress
by Zornitsa Katerova, Dessislava Todorova, Elena Shopova, Liliana Brankova, Ljudmila Dimitrova, Margarita Petrakova and Iskren Sergiev
Plants 2023, 12(15), 2803; https://doi.org/10.3390/plants12152803 - 28 Jul 2023
Cited by 1 | Viewed by 768
Abstract
Waterlogging and drought disrupt crop development and productivity. Triticale is known to be relatively tolerant to different stress factors. In natural conditions, plants are rather subjected to multiple environmental factors. Serrate® (Syngenta) is a systemic selective herbicide suitable for cereal crops such [...] Read more.
Waterlogging and drought disrupt crop development and productivity. Triticale is known to be relatively tolerant to different stress factors. In natural conditions, plants are rather subjected to multiple environmental factors. Serrate® (Syngenta) is a systemic selective herbicide suitable for cereal crops such as triticale and wheat to restrain annual grass and broadleaf weeds. Triticale (×Triticosecale Wittm., cv. Rozhen) was grown as soil culture under controlled conditions. Seventeen-day-old plantlets were leaf sprayed with Serrate®. The water stress (drought or waterlogging) was applied after 72 h for 7 days, and then the seedlings were left for recovery. The herbicide does not provoke sharp alterations in the antioxidant state (stress markers level, and antioxidant and xenobiotic-detoxifying enzymes activity). The water stresses and combined treatments enhanced significantly the content of stress markers (malondialdehyde, proline, hydrogen peroxide), non-enzymatic (total phenolics and thiol groups-containing compounds), and enzymatic (activities of superoxide dismutase, catalase, guaiacol peroxidase, glutathione reductase) antioxidants, and xenobiotic-detoxifying enzymes (activities of glutathione S-transferase, NADPH:cytochrome P450 reductase, NADH:cytochrome b5 reductase). These effects were more severely expressed after the drought stress, suggesting that this cultivar is more tolerant to waterlogging than to drought stress. Full article
(This article belongs to the Special Issue Molecular Mechanisms Associated with Plant Tolerance upon Abiotic Stress)
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