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Plant Responses to Abiotic and Biotic Stresses

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 February 2025 | Viewed by 607

Special Issue Editors

Special Issue Information

Dear Colleagues,

Meteorological records have shown that mean annual temperatures have increased by approximately 1 °C over the past century, and this trend is expected to continue in the future. Meanwhile, droughts and floods are occurring more frequently than before. The increasing frequency of extreme weather events poses a serious threat to global food security. As a result, improving plant, particularly crop, resistance to abiotic stresses has become increasingly important. It is therefore crucial to understand how plants effectively cope with high-intensity extreme weather conditions, and to elucidate the underlying molecular as well as physiological mechanisms of plant responses to abiotic stresses. This knowledge can aid in the development of technologies to help plants withstand abiotic stresses and mitigate the impacts of extreme climate change on crop security.

We welcome submissions of original research and review articles. Topics for this Special Issue include, but are not limited to, the following:

  1. Molecular mechanisms of plant responses to abiotic stresses;
  2. Physiological responses of plants under abiotic stresses;
  3. Plant hormone signals in enhancing plant responses to abiotic stresses;
  4. Pathways of plant resistance to abiotic stress conditions;
  5. Methods to reduce the inhibitory effects of abiotic stresses on plant growth, development, and yield formation.

Dr. Longxing Tao
Dr. Tingting Chen
Guest Editors

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Keywords

  • climate change and crop production
  • abiotic stress
  • biotic stress
  • plant resistance to abiotic and biotic stresses
  • molecular mechanism
  • physiological responses
  • plant hormones
  • carbohydrate metabolism and transport
  • molecular signaling
  • reactive oxygen species (ROS)
  • calcium ions
  • photosynthesis
  • respiration
  • energy metabolism

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Published Papers (1 paper)

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Research

17 pages, 5697 KiB  
Article
Energy Deficiency and Misdistribution Leads to Disrupted Formation in Grain Yield and Rice Quality
by Yiding Wang, Guangyan Li, Jiaying Ma, Haoran Su, Wenfei Hu, Junjiang Lin, Weimeng Fu, Yvxiang Zeng, Longxing Tao, Guanfu Fu, Jie Xiong and Tingting Chen
Int. J. Mol. Sci. 2024, 25(23), 12751; https://doi.org/10.3390/ijms252312751 - 27 Nov 2024
Viewed by 209
Abstract
With the progress of society and the improvement of agricultural scientific technology, the single focus on high yield for rice production has gradually shifted to high quality. Coordinated development of grain yield and rice quality has become a core issue for researchers, and [...] Read more.
With the progress of society and the improvement of agricultural scientific technology, the single focus on high yield for rice production has gradually shifted to high quality. Coordinated development of grain yield and rice quality has become a core issue for researchers, and the underlying mechanisms remain to be solved. Two varieties, Zhongzheyou1 (ZZY1) and Zhongzheyou8 (ZZY8), were used as study materials under field conditions. The yield of ZZY1 was higher than that of ZZY8, which was mainly characterized by a higher seed-setting rate and grain weight. The rice quality of ZZY8 was better than that of ZZY1, primarily due to lower chalkiness and a higher head rice rate. The total dry matter weight of ZZY1 was lower than that of ZZY8, but the proportion of panicle dry matter weight or nonstructural carbohydrate to the total in the former was higher than that of the latter. The maximum grain-filling rate, average grain-filling rate, and key enzyme activities of ZZY1 were significantly higher than those of ZZY8, while the active grain-filling period was shorter than that of ZZY8. Furthermore, the ATP/ATPase content and energy charge values in the grains of ZZY1 were higher than those of ZZY8 at the early grain-filling stage. Transcriptome analysis showed that carbohydrate and energy metabolism were the main ways affecting the yield and quality of the two varieties. The energy production of ZZY1 was insufficient to simultaneously supply the needs thus leading to the discordant formation in its grain yield and rice quality formation. Full article
(This article belongs to the Special Issue Plant Responses to Abiotic and Biotic Stresses)
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