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豇豆的耐旱性与通过根部的VuWRKY57快速合成脱落酸有关。

Drought tolerance of cowpea is associated with rapid abscisic acid biosynthesis via VuWRKY57 in root.

作者信息

Tochihara-Tanaka Misaki, Kai Sayuri, Murakami Nao, Murakami Shinya, Miura Nene, Komai Reika, Tatsumi Yuka, Takahashi Mio, Hamaoka Norimitsu, Iwaya-Inoue Mari, Suriyasak Chetphilin, Ishibashi Yushi

机构信息

Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0365, Japan.

出版信息

AoB Plants. 2025 Jul 8;17(4):plaf038. doi: 10.1093/aobpla/plaf038. eCollection 2025 Aug.

DOI:10.1093/aobpla/plaf038
PMID:40697353
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12280871/
Abstract

Cowpea [ (L.) Walp] is more drought tolerant than other legumes, although drought still limits its productivity. Under drought stress, cowpea closes its stomata more rapidly to maintain its plant water content than soybean. The rapidly stomatal closure under drought stress in cowpea is mediated by abscisic acid (ABA), but the details of the mechanism are not yet clear. We examined the expression of an ABA-biosynthesis-related gene encoding 9--epoxycarotenoid dioxygenase (NCED) and ABA content in roots of cowpea and soybean under drought stress. Following an analysis of each gene's promoter, we investigated the expression of the genes for WRKY transcription factors VuWRKY57 and GmWRKY32. gene expression conformed with and expression, and VuWRKY57 bound to the promoter. Overexpression of in confirmed the drought stress tolerance. Thus, under drought stress, expression is rapidly induced in cowpea roots; ABA content increased via the induction of leads to stomatal closure; and drought tolerance is conferred.

摘要

豇豆[（L.）Walp]比其他豆类更耐旱，尽管干旱仍然限制其生产力。在干旱胁迫下，豇豆比大豆更快地关闭气孔以维持其植物含水量。干旱胁迫下豇豆气孔的快速关闭由脱落酸（ABA）介导，但机制细节尚不清楚。我们研究了干旱胁迫下豇豆和大豆根中编码9-环氧类胡萝卜素双加氧酶（NCED）的ABA生物合成相关基因的表达以及ABA含量。在分析每个基因的启动子后，我们研究了WRKY转录因子VuWRKY57和GmWRKY32基因的表达。基因表达与 和 表达一致，并且VuWRKY57与 启动子结合。在 中过表达 证实了干旱胁迫耐受性。因此，在干旱胁迫下，豇豆根中 表达迅速被诱导；通过诱导 增加ABA含量导致气孔关闭；并赋予耐旱性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/4ec24b852631/plaf038f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/30ed4f903370/plaf038f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/4ca7370b62cc/plaf038f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/35638f42cbea/plaf038f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/74955b750a4d/plaf038f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/4ec24b852631/plaf038f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/30ed4f903370/plaf038f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/e9bdccd924ff/plaf038f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/4ca7370b62cc/plaf038f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/35638f42cbea/plaf038f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/74955b750a4d/plaf038f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80e7/12280871/4ec24b852631/plaf038f6.jpg

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本文引用的文献

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BMC Plant Biol. 2023 Apr 25;23(1):216. doi: 10.1186/s12870-023-04213-y.
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GhWRKY1-like, a WRKY transcription factor, mediates drought tolerance in Arabidopsis via modulating ABA biosynthesis.GhWRKY1-like，一种 WRKY 转录因子，通过调节 ABA 生物合成介导拟南芥的耐旱性。
BMC Plant Biol. 2021 Oct 8;21(1):458. doi: 10.1186/s12870-021-03238-5.
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Genome-wide analysis of the WRKY gene family in the cucumber genome and transcriptome-wide identification of WRKY transcription factors that respond to biotic and abiotic stresses.
黄瓜基因组中 WRKY 基因家族的全基因组分析和对生物和非生物胁迫有响应的 WRKY 转录因子的全转录组鉴定。
BMC Plant Biol. 2020 Sep 25;20(1):443. doi: 10.1186/s12870-020-02625-8.
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Mechanism of Stomatal Closure in Plants Exposed to Drought and Cold Stress.植物暴露于干旱和寒冷胁迫下气孔关闭的机制。
Adv Exp Med Biol. 2018;1081:215-232. doi: 10.1007/978-981-13-1244-1_12.
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Phytohormones enhanced drought tolerance in plants: a coping strategy.植物激素增强植物的耐旱性：一种应对策略。
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