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Molecular Mechanisms of Abiotic Stress Response in Rice
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Molecular Mechanisms of Abiotic Stress Response in Rice

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 September 2024 | Viewed by 2518

Special Issue Editors

Dr. Guang Chen

E-Mail Website
Guest Editor
Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
Interests: rice; nutrient utilization; abiotic stress response; gene cloning; molecular mechanism; regulatory network
Dr. Li Zhu

E-Mail Website
Guest Editor
State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
Interests: rice functional genomics; uppermost internode development; leaf color development; auxin biosynthesis; genetic modification of rice; salt tolerance and herbicide resistance
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Drought, high salinity, cold damage, high temperature, heavy metals and other abiotic stresses seriously restrict the normal growth and development of rice, which is one of the main factors causing yield reduction. Abiotic stress can induce a series of molecular, biochemical and physiological changes, including osmotic accumulation, photosynthesis reduction, stomatal closure and stress response gene expression. Drought, high temperature and salt stress can cause plant dehydration, resulting in a decrease in cytoplasm and vacuole volume; it also produces reactive oxygen species (ROS), destroys biomembrane, proteins and DNA, and even decreases photosynthetic rate and efficiency, triggering programmed cell death. Low temperature stress can also cause the abnormal structure and function of reproductive organs in low-temperature-sensitive plants, resulting in fertilization failure.

Plant perception and response to abiotic stress is a complex process, involving multiple genes, multiple signal transduction pathways and multiple gene expression products. The factors that play a role mainly include the ROS scavenging enzyme system, protein kinase, membrane transporter, ABA, transcription factor, miRNA and so on.

This Special Issue focuses on the important factors affecting rice yield trait–nutrient utilization and stress adaptation, and analyzes the physiological and biochemical processes of rice nutrient quality metabolism, nutrient efficient utilization, abiotic stress response and the molecular mechanism of related regulatory genes, especially interested, but not limited to, the following topics:

  1. Analysis of the physiological and molecular mechanisms of environmental factors affecting rice growth, yield and quality;
  2. Transgenic regulation of important gene resources;
  3. Deeply exploring the biological functions of core genes involved in multiple signaling pathways.

Dr. Guang Chen
Dr. Li Zhu
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

  • rice
  • nutrient efficient utilization
  • abiotic stress response
  • molecular mechanism
  • regulatory network

Published Papers (2 papers)

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16 pages, 11287 KiB  
Article
Transcriptome Analysis Reveals the Dynamic and Rapid Transcriptional Reprogramming Involved in Heat Stress and Identification of Heat Response Genes in Rice
by Yonggang He, Huimin Guan, Bo Li, Shuo Zhang, Yanhao Xu, Yan Yao, Xiaolong Yang, Zhongping Zha, Ying Guo, Chunhai Jiao and Haiya Cai
Int. J. Mol. Sci. 2023, 24(19), 14802; https://doi.org/10.3390/ijms241914802 - 30 Sep 2023
Cited by 1 | Viewed by 1120
Abstract
High temperature is one of the most important environmental factors influencing rice growth, development, and yield. Therefore, it is important to understand how rice plants cope with high temperatures. Herein, the heat tolerances of T2 (Jinxibai) and T21 (Taizhongxianxuan2hao) were evaluated at 45 [...] Read more.
High temperature is one of the most important environmental factors influencing rice growth, development, and yield. Therefore, it is important to understand how rice plants cope with high temperatures. Herein, the heat tolerances of T2 (Jinxibai) and T21 (Taizhongxianxuan2hao) were evaluated at 45 °C, and T21 was found to be sensitive to heat stress at the seedling stage. Analysis of the H2O2 and proline content revealed that the accumulation rate of H2O2 was higher in T21, whereas the accumulation rate of proline was higher in T2 after heat treatment. Meanwhile, transcriptome analysis revealed that several pathways participated in the heat response, including “protein processing in endoplasmic reticulum”, “plant hormone signal transduction”, and “carbon metabolism”. Additionally, our study also revealed that different pathways participate in heat stress responses upon prolonged stress. The pathway of “protein processing in endoplasmic reticulum” plays an important role in stress responses. We found that most genes involved in this pathway were upregulated and peaked at 0.5 or 1 h after heat treatment. Moreover, sixty transcription factors, including the members of the AP2/ERF, NAC, HSF, WRKY, and C2H2 families, were found to participate in the heat stress response. Many of them have also been reported to be involved in biotic or abiotic stresses. In addition, through PPI (protein–protein interactions) analysis, 22 genes were identified as key genes in the response to heat stress. This study improves our understanding of thermotolerance mechanisms in rice, and also lays a foundation for breeding thermotolerant cultivars via molecular breeding. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Abiotic Stress Response in Rice)
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Review

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17 pages, 2025 KiB  
Review
The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice
by Wenli Lian, Anjing Geng, Yihan Wang, Minghao Liu, Yue Zhang, Xu Wang and Guang Chen
Int. J. Mol. Sci. 2023, 24(23), 16682; https://doi.org/10.3390/ijms242316682 - 24 Nov 2023
Cited by 1 | Viewed by 1095
Abstract
Potassium is essential for plant growth and development and stress adaptation. The maintenance of potassium homeostasis involves a series of potassium channels and transporters, which promote the movement of potassium ions (K+) across cell membranes and exhibit complex expression patterns and [...] Read more.
Potassium is essential for plant growth and development and stress adaptation. The maintenance of potassium homeostasis involves a series of potassium channels and transporters, which promote the movement of potassium ions (K+) across cell membranes and exhibit complex expression patterns and regulatory mechanisms. Rice is a major food crop in China. The low utilization rate of potassium fertilizer limits the yield and quality of rice. Elucidating the molecular mechanisms of potassium absorption, transport, and utilization is critical in improving potassium utilization efficiency in rice. Although some K+ transporter genes have been identified from rice, research on the regulatory network is still in its infancy. Therefore, this review summarizes the relevant information on K+ channels and transporters in rice, covering the absorption of K+ in the roots, transport to the shoots, the regulation pathways, the relationship between K+ and the salt tolerance of rice, and the synergistic regulation of potassium, nitrogen, and phosphorus signals. The related research on rice potassium nutrition has been comprehensively reviewed, the existing research foundation and the bottleneck problems to be solved in this field have been clarified, and the follow-up key research directions have been pointed out to provide a theoretical framework for the cultivation of potassium-efficient rice. Full article
(This article belongs to the Special Issue Molecular Mechanisms of Abiotic Stress Response in Rice)
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