A self-regulatory cell-wall-sensing module at cell edges controls plant growth

被引:12
作者
Elliott, Liam [1 ,2 ]
Kalde, Monika [1 ]
Schuerholz, Ann-Kathrin [3 ]
Zhang, Xinyu [1 ,2 ]
Wolf, Sebastian [3 ,4 ]
Moore, Ian [1 ]
Kirchhelle, Charlotte [1 ,2 ]
机构
[1] Univ Oxford, Dept Plant Sci, Oxford, England
[2] Univ Lyon 1, Lab Reprod & Dev Plantes, ENS Lyon, CNRS,INRAE, Lyon, France
[3] Heidelberg Univ, Ctr Organismal Studies, Heidelberg, Germany
[4] Univ Tubingen, Ctr Plant Mol Biol, Tubingen, Germany
基金
欧洲研究理事会; 英国生物技术与生命科学研究理事会;
关键词
RECEPTOR-LIKE PROTEINS; ARABIDOPSIS; CELLULOSE; KINASE; MEMBRANE; FERONIA; COLOCALIZATION; TRAFFICKING; ELONGATION; RESISTANCE;
D O I
10.1038/s41477-024-01629-8
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Morphogenesis of multicellular organs requires coordination of cellular growth. In plants, cell growth is determined by turgor pressure and the mechanical properties of the cell wall, which also glues cells together. Because plants have to integrate tissue-scale mechanical stresses arising through growth in a fixed tissue topology, they need to monitor cell wall mechanical status and adapt growth accordingly. Molecular factors have been identified, but whether cell geometry contributes to wall sensing is unknown. Here we propose that plant cell edges act as cell-wall-sensing domains during growth. We describe two Receptor-Like Proteins, RLP4 and RLP4-L1, which occupy a unique polarity domain at cell edges established through a targeted secretory transport pathway. We show that RLP4s associate with the cell wall at edges via their extracellular domain, respond to changes in cell wall mechanics and contribute to directional growth control in Arabidopsis. How do multicellular organisms integrate cell- and tissue-scale mechanical information to coordinate growth? Elliott et al. show that plant cells establish a self-regulating cell-wall-sensing module at their one-dimensional cell edges to control three-dimensional growth.
引用
收藏
页码:483 / 493
页数:27
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