Key message

Cell wall plasticity plays a very crucial role in vegetative and reproductive development of rice under drought and is a highly potential trait for improving rice yield under drought.

Abstract

Drought is a major constraint in rice (Oryza sativa L.) cultivation severely affecting all developmental stages, with the reproductive stage being the most sensitive. Rice plants employ multiple strategies to cope with drought, in which modification in cell wall dynamics plays a crucial role. Over the years, significant progress has been made in discovering the cell wall-specific genomic resources related to drought tolerance at vegetative and reproductive stages of rice. However, questions remain about how the drought-induced changes in cell wall made by these genomic resources potentially influence the vegetative and reproductive development of rice. The possibly major candidate genes underlying the function of quantitative trait loci directly or indirectly associated with the cell wall plasticization-mediated drought tolerance of rice might have a huge promise in dissecting the putative genomic regions associated with cell wall plasticity under drought. Furthermore, engineering the drought tolerance of rice using cell wall-related genes from resurrection plants may have huge prospects for rice yield improvement. Here, we review the comprehensive multidisciplinary analyses to unravel different components and mechanisms involved in drought-induced cell wall plasticity at vegetative and reproductive stages that could be targeted for improving rice yield under drought.

中文翻译：

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水稻抗旱性细胞壁结构及相关基因组资源动态

关键信息

细胞壁可塑性对干旱条件下水稻的营养和生殖发育起着至关重要的作用，是提高干旱条件下水稻产量的极具潜力的性状。

抽象的

干旱是水稻的主要制约因素（Oryza sativaL.) 栽培严重影响所有发育阶段，其中生殖阶段最为敏感。水稻植物采用多种策略来应对干旱，其中细胞壁动力学的改变起着至关重要的作用。多年来，在发现与水稻营养和生殖阶段耐旱性相关的细胞壁特异性基因组资源方面取得了重大进展。然而，关于这些基因组资源引起的干旱诱导的细胞壁变化如何潜在地影响水稻的营养和生殖发育，仍然存在疑问。与水稻细胞壁塑化介导的耐旱性直接或间接相关的数量性状基因座功能的可能主要候选基因可能在剖析与干旱条件下细胞壁可塑性相关的假定基因组区域方面具有巨大的前景。此外，利用复活植物的细胞壁相关基因设计水稻的耐旱性可能对提高水稻产量具有巨大的前景。在这里，我们回顾了全面的多学科分析，以揭示营养和生殖阶段干旱诱导的细胞壁可塑性所涉及的不同成分和机制，这些成分和机制可用于提高干旱条件下的水稻产量。使用来自复活植物的细胞壁相关基因来设计水稻的耐旱性可能对提高水稻产量具有巨大的前景。在这里，我们回顾了全面的多学科分析，以揭示营养和生殖阶段干旱诱导的细胞壁可塑性所涉及的不同成分和机制，这些成分和机制可用于提高干旱条件下的水稻产量。使用来自复活植物的细胞壁相关基因来设计水稻的耐旱性可能对提高水稻产量具有巨大的前景。在这里，我们回顾了全面的多学科分析，以揭示营养和生殖阶段干旱诱导的细胞壁可塑性所涉及的不同成分和机制，这些成分和机制可用于提高干旱条件下的水稻产量。