THESEUS1 modulates cell wall stiffness and abscisic acid production in Arabidopsis thaliana.
THESEUS1 modulates cell wall stiffness and abscisic acid production in Arabidopsis thaliana.
复制标题
SEUS1调控拟南芥细胞壁硬度和脱落酸的产生。
DOI：
10.1073/pnas.2119258119
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发表时间：
2022-01-04
影响因子：
11.1
通讯作者：
Hamann T
中科院分区：
文献类型：
--
作者：
Bacete L;Schulz J;Engelsdorf T;Bartosova Z;Vaahtera L;Yan G;Gerhold JM;Tichá T;Øvstebø C;Gigli-Bisceglia N;Johannessen-Starheim S;Margueritat J;Kollist H;Dehoux T;McAdam SAM;Hamann T
植物需要不断适应不断变化的环境。适应包括对生物和非生物胁迫的反应。决定对非生物胁迫反应的关键因素是所有植物细胞周围的细胞壁和影响植物膨压的植物激素脱落酸。植物细胞中的膨压比动物细胞中的高得多，是植物生长和发育的关键驱动力。在这里，我们研究了调节细胞壁硬度的机制，以及与脱落酸产生的硬度和膨胀度的协调变化。我们描述了该机制的关键要素，并剖析了其作用模式。这些知识将使我们能够提高植物对干旱胁迫的抵抗力，这是由于我们不断变化的环境所必需的。植物细胞与动物细胞的区别在于它们的细胞壁和高压。尽管膨胀度的变化和细胞壁的僵硬似乎是协调的，但我们对协调的机制知之甚少。越来越多的证据表明，植物就像酵母一样，有一种专门的细胞壁完整性维护机制。它监测细胞壁的功能完整性，并通过在生长、发育和与环境相互作用过程中引起的细胞壁损伤诱导的适应性反应来维持完整性。这些适应性反应包括对植物激素产生的渗透敏感诱导、防御反应以及细胞壁成分和结构的变化。在这里，我们研究了细胞壁完整性维持机制如何协调拟南芥细胞壁硬度和膨胀度的变化。我们表明，脱落酸(ABA)的产生、植物激素调节膨压和对干旱的反应依赖于功能细胞壁的存在。我们发现，细胞壁完整性传感器THESEUS1调节细胞壁的机械性质、膨胀率损失点、ABA生物合成和ABA控制的过程。我们确定受体样蛋白12是控制细胞壁完整性维持、细胞壁损伤诱导茉莉酸(JA)产生的组成部分。我们认为1负责协调膨压和细胞壁硬度的变化。
Plants need to constantly adapt to a changing environment. Adaptation includes responses to biotic and abiotic stress. Key elements determining the response to abiotic stress are the cell walls surrounding all plant cells and the phytohormone abscisic acid, which influence turgor pressure in plants. Turgor pressure in plant cells is much higher than in animal cells and a key driver of plant growth and development. Here, we investigate the mechanism regulating cell wall stiffness and coordinating changes in stiffness and turgor with abscisic acid production. We characterize key elements of the mechanism and dissect its mode of action. This knowledge will enable us to improve plant resistance to drought stress, which is necessary due to our changing environment. Plant cells can be distinguished from animal cells by their cell walls and high-turgor pressure. Although changes in turgor and the stiffness of cell walls seem coordinated, we know little about the mechanism responsible for coordination. Evidence has accumulated that plants, like yeast, have a dedicated cell wall integrity maintenance mechanism. It monitors the functional integrity of the wall and maintains integrity through adaptive responses induced by cell wall damage arising during growth, development, and interactions with the environment. These adaptive responses include osmosensitive induction of phytohormone production, defense responses, as well as changes in cell wall composition and structure. Here, we investigate how the cell wall integrity maintenance mechanism coordinates changes in cell wall stiffness and turgor in Arabidopsis thaliana. We show that the production of abscisic acid (ABA), the phytohormone-modulating turgor pressure, and responses to drought depend on the presence of a functional cell wall. We find that the cell wall integrity sensor THESEUS1 modulates mechanical properties of walls, turgor loss point, ABA biosynthesis, and ABA-controlled processes. We identify RECEPTOR-LIKE PROTEIN 12 as a component of cell wall integrity maintenance–controlling, cell wall damage–induced jasmonic acid (JA) production. We propose that THE1 is responsible for coordinating changes in turgor pressure and cell wall stiffness.
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影响因子：
5.1
作者：
de Ollas C;Dodd IC
通讯作者：
Dodd IC
FERONIA 与 ABI2 型磷酸酶相互作用，促进拟南芥中脱落酸和 RALF 肽之间的信号串扰。
DOI：
10.1073/pnas.1608449113
发表时间：
2016-09-13
影响因子：
11.1
作者：
Chen, Jia;Yu, Feng;Luan, Sheng
通讯作者：
Luan, Sheng
影响因子：
4.6
作者：
Gigli-Bisceglia, Nora;Engelsdorf, Timo;Hamann, Thorsten
通讯作者：
Hamann, Thorsten
影响因子：
7.2
作者：
Bacete, Laura;Melida, Hugo;Molina, Antonio
通讯作者：
Molina, Antonio
影响因子：
64.5
作者：
BRAAM, J;DAVIS, RW
通讯作者：
DAVIS, RW