Cell Biology of Drought and Heat Stress Responses in Plants

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Plant, Algae and Fungi Cell Biology".

Deadline for manuscript submissions: closed (28 February 2024) | Viewed by 828

Special Issue Editor


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Guest Editor
Institute of Biological Chemistry, Plant Sciences Building, Room 281, Washington State University, Washington, WA, USA
Interests: drought; heat; organelles; peroxisomes; signaling; cytoskeleton; cytokinesis
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Special Issue Information

Dear Colleagues,

The Editorial Board of Cells has opened the Special Issue “Cell Biology of Drought and Heat Stress Responses in Plants” for submissions of research or review manuscripts. This is a follow up to the Special Issue “Drought and Heat Stress Signaling Responses” published in 2022. Recent examples of extreme weather patterns demonstrated devastating effects of high temperatures on ecosystems at all levels with an especially damaging impact on plant health. Drought exacerbates the detrimental impact of the heat waves by compromising plant temperature control mechanisms. It has been shown that while drought alone results in 19-50% yield losses, depending on geographical location, a combination of heat and drought can cause complete yield losses or devalue the produce. Considering the rise in annual average temperatures and increasing demand for water resources from the growing population, the combination of drought and heat poses an existential threat to our life. Hence, it is imperative to combine efforts in dissecting mechanisms of plant responses to these stresses on all levels. Understanding changes in cellular dynamics under heat and drought is essential for our perception of stress factors, integration of this information with other environmental and developmental cues, and mounting short- and long-term responses on the cellular level. We anticipate this Special Issue will contribute to advancing our understanding of the molecular and cellular mechanism of drought and heat responses, serving as a useful resource for the scientific community, industry, and readers interested in the development of strategies and tools for improving plant resiliency.

Dr. Andrei Smertenko
Guest Editor

Manuscript Submission Information

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Keywords

  • drought
  • heat
  • cells
  • signaling
  • responses

Published Papers (1 paper)

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Research

17 pages, 6229 KiB  
Article
RIP5 Interacts with REL1 and Negatively Regulates Drought Tolerance in Rice
by Qiuxin Zhang, Dan He, Jingjing Zhang, Hui He, Guohua Guan, Tingting Xu, Weiyan Li, Yan He and Zemin Zhang
Cells 2024, 13(11), 887; https://doi.org/10.3390/cells13110887 - 21 May 2024
Viewed by 564
Abstract
Improving the drought resistance of rice is of great significance for expanding the planting area and improving the stable yield of rice. In our previous work, we found that ROLLED AND ERECT LEAF1 (REL1) protein promoted enhanced tolerance to drought stress [...] Read more.
Improving the drought resistance of rice is of great significance for expanding the planting area and improving the stable yield of rice. In our previous work, we found that ROLLED AND ERECT LEAF1 (REL1) protein promoted enhanced tolerance to drought stress by eliminating reactive oxygen species (ROS) levels and triggering the abscisic acid (ABA) response. However, the mechanism through which REL1 regulates drought tolerance by removing ROS is unclear. In this study, we identified REL1 interacting protein 5 (RIP5) and found that it directly combines with REL1 in the chloroplast. We found that RIP5 was strongly expressed in ZH11 under drought-stress conditions, and that the rip5-ko mutants significantly improved the tolerance of rice plants to drought, whereas overexpression of RIP5 resulted in greater susceptibility to drought. Further investigation suggested that RIP5 negatively regulated drought tolerance in rice by decreasing the content of ascorbic acid (AsA), thereby reducing ROS clearance. RNA sequencing showed that the knockout of RIP5 caused differential gene expression that is chiefly associated with ascorbate and aldarate metabolism. Furthermore, multiple experimental results suggest that REL1 is involved in regulating drought tolerance by inhibiting RIP5. Collectively, our findings reveal the importance of the inhibition of RIP5 by REL1 in affecting the rice’s response to drought stress. This work not only explains the drought tolerance mechanism of rice, but will also help to improve the drought tolerance of rice. Full article
(This article belongs to the Special Issue Cell Biology of Drought and Heat Stress Responses in Plants)
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