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IJMS
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Assimilate Production and Allocation in Plants under Abiotic Stress 2.0
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Assimilate Production and Allocation in Plants under Abiotic Stress 2.0

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 15 June 2024 | Viewed by 1854

Special Issue Editors

Dr. Guanfu Fu

E-Mail Website
Guest Editor
Research and Development Center of Rice Cropping Technology, China National Rice Research Institute (CNRRI), Hangzhou 310006, China
Interests: rice-abiotic interaction; abiotic stress; plant hormone; sugar metabolism; photosynthesis; respiration; energy metabolism
Special Issues, Collections and Topics in MDPI journals
Dr. Jun Zhang

E-Mail Website
Guest Editor
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: theory and technology of high-quality rice cultivation; farming system and agro-ecology; high-yielding and greenhouse gas emission mitigation; climate adaptation of rice cropping systems
Special Issues, Collections and Topics in MDPI journals
Dr. She Tang

E-Mail Website
Guest Editor
College of Agronomy, Nanjing Agricultural University, Nanjing 210095, China
Interests: physiology and ecology of crop cultivation; climate change and rice quality formation; adaptive rice cultivation approach
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to their sessile nature, plants are inevitably exposed to multiple adverse environmental stresses, which frequently occur nowadays with the onset of global warming. These stresses negatively impact plant growth and development by causing the accumulation of reactive oxygen species (ROS), inducing programmed cell death (PCD), impairing assimilate production and allocation, disturbing the source–flow–sink balance, thus leading to a low yield and poor quality. These processes can adversely affect food security all over the world. Therefore, plants have formed complex response pathways, from gene expressions to plant physiological processes and even architecture through primary and secondary metabolism, to combat these threats. To shed light into the underlying mechanisms of these plants, we are organizing a Special Issue of IJMS to share knowledge about plant responses to abiotic stresses, including drought, heat, cold, salt, heavy metals, high-light and low-light stresses.

We are particularly interested in, but not limited to, the following topics:

  1. assimilate production and allocation in plants;
  2. the source–flow–sink relationship;
  3. sugars and phytohormones signaling in plants;
  4. strategies such as breeding highly resistant cultivars and implementing cultivation techniques and chemicals to alleviate abiotic stress damages to obtain good-quality and high production yields.

Authors from across world are invited to submit original research and review articles on topics related to plant defense mechanisms against abiotic stresses.

Dr. Guanfu Fu
Dr. Jun Zhang
Dr. She Tang
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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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 response
  • plant metabolism
  • abiotic stresses
  • drought
  • heat
  • cold
  • salt
  • heavy metal
  • high-light
  • low-light

Published Papers (3 papers)

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Research

25 pages, 6626 KiB  
Article
Features of the Effect of Quercetin on Different Genotypes of Wheat under Hypoxia
by Larisa Ivanovna Fedoreyeva, Elena Michailovna Lazareva and Neonila Vasilievna Kononenko
Int. J. Mol. Sci. 2024, 25(8), 4487; https://doi.org/10.3390/ijms25084487 - 19 Apr 2024
Viewed by 208
Abstract
Hypoxia is one of the common abiotic stresses that negatively affects the development and productivity of agricultural crops. Quercetin is used to protect plants from oxidative stress when exposed to environmental stressors. O2 deficiency leads to impaired development and morphometric parameters in [...] Read more.
Hypoxia is one of the common abiotic stresses that negatively affects the development and productivity of agricultural crops. Quercetin is used to protect plants from oxidative stress when exposed to environmental stressors. O2 deficiency leads to impaired development and morphometric parameters in wheat varieties Orenburgskaya 22 (Triticum aestivum L.) and varieties Zolotaya (Triticum durum Desf.). Cytological analysis revealed various types of changes in the cytoplasm under conditions of hypoxia and treatment with quercetin. The most critical changes in the cytoplasm occur in the Zolotaya variety during pretreatment with quercetin followed by hypoxia, and in the Orenburgskaya 22 variety during hypoxia. Quercetin has a protective effect only on the Orenburgskaya 22 variety, and also promotes a more effective recovery after exposure to low O2 content. Hypoxia causes an increase in reactive oxygen species and activates the antioxidant system. It has been shown that the most active components of the antioxidant system in the Orenburgskaya 22 variety are MnSOD and Cu/ZnSOD, and in the Zolotaya variety GSH. We have shown that quercetin provides resistance only to the wheat genotype Orenburgskaya 22, as a protective agent against abiotic stress, which indicates the need for a comprehensive study of the effects of exogenous protectors before use in agriculture. Full article
(This article belongs to the Special Issue Assimilate Production and Allocation in Plants under Abiotic Stress 2.0)
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16 pages, 9335 KiB  
Article
Physiological Investigation and Transcriptome Analysis Reveals the Mechanisms of Setaria italica’s Yield Formation under Heat Stress
by Manicao Hu, Meng Yang, Jingyang Liu, Haozhe Huang, Ruiwei Luan, Hongliang Yue and Caixia Zhang
Int. J. Mol. Sci. 2024, 25(6), 3171; https://doi.org/10.3390/ijms25063171 - 09 Mar 2024
Viewed by 446
Abstract
Setaria italica is an important crop in China that plays a vital role in the Chinese dietary structure. In the last several decades, high temperature has become the most severe climate issue in the world, which causes great harm to the yield and [...] Read more.
Setaria italica is an important crop in China that plays a vital role in the Chinese dietary structure. In the last several decades, high temperature has become the most severe climate issue in the world, which causes great harm to the yield and quality formation of millet. In this study, two main cultivated varieties (ZG2 and AI88) were used to explore the photosynthesis and yield index of the whole plant under heat stress. Results implied that photosynthesis was not inhibited during the heat stress, and that the imbalance in sugar transport between different tissues may be the main factor that affects yield formation. In addition, the expression levels of seven SiSUT and twenty-four SiSWEET members were explored. Sugar transporters were heavily affected during the heat stress. The expression of SiSWEET13a was inhibited by heat stress in the stems, which may play a vital role in sugar transport between different tissues. These results provide new insights into the yield formation of crops under heat stress, which will provide guidance to crop breeding and cultivation. Full article
(This article belongs to the Special Issue Assimilate Production and Allocation in Plants under Abiotic Stress 2.0)
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22 pages, 3429 KiB  
Article
Mechanisms of Antioxidant Resistance in Different Wheat Genotypes under Salt Stress and Hypoxia
by Neonila V. Kononenko, Elena M. Lazareva and Larisa I. Fedoreyeva
Int. J. Mol. Sci. 2023, 24(23), 16878; https://doi.org/10.3390/ijms242316878 - 28 Nov 2023
Viewed by 718
Abstract
Various stressors lead to an increase in ROS and damage to plant tissues. Plants have a powerful antioxidant system (AOS), which allows them to neutralize excess ROS. We detected an intense fluorescent glow of ROS in the cells of the cap, meristem, and [...] Read more.
Various stressors lead to an increase in ROS and damage to plant tissues. Plants have a powerful antioxidant system (AOS), which allows them to neutralize excess ROS. We detected an intense fluorescent glow of ROS in the cells of the cap, meristem, and elongation zones in the roots of wheat Triticum aestivum (Orenburgskaya 22 variety) and Triticum durum (Zolotaya variety). An increase in ROS was accompanied by DNA breaks in the nuclei of wheat root cells, the release of cytochrome c from mitochondria into the cytoplasm, and the translocation of phosphatidylserine into the outer layer of the plasma membrane under salt stress and hypoxia. The different resistances of the two wheat varieties to different abiotic stresses were revealed. The soft wheat variety Orenburgskaya 22 showed high resistance to salt stress but sensitivity to hypoxia, and the durum wheat variety Zolotaya showed tolerance to hypoxia but high sensitivity to salt stress. Different activations of AOS components (GSH, MnSOD, Cu/ZnSOD, CAT, PX, GPX, and GST) were revealed in different wheat genotypes. The basis for the tolerance of the Zolotaya variety to hypoxia is the high content of glutathione (GSH) and the activation of glutathione-dependent enzymes. One of the mechanisms of high resistance to salt stress in the Orenburgskaya 22 variety is a decrease in the level of ROS as a result of the increased activity of the MnSOD and Cu/ZnSOD genes. Identifying the mechanisms of plant tolerance to abiotic stress is the most important task for improving breeding varieties of agricultural plants and increasing their yield. Full article
(This article belongs to the Special Issue Assimilate Production and Allocation in Plants under Abiotic Stress 2.0)
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