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Growth-inhibiting effects of the unconventional plant APYRASE 7 of Arabidopsis thaliana influences the LRX/RALF/FER growth regulatory module
- Source :
- Gupta, Shibu; Guérin, Amandine; Herger, Aline; Hou, Xiaoyu; Schaufelberger, Myriam; Roulard, Romain; Diet, Anouck; Roffler, Stefan; Lefebvre, Valérie; Wicker, Thomas; Pelloux, Jérôme; Ringli, Christoph (2024). Growth-inhibiting effects of the unconventional plant APYRASE 7 of Arabidopsis thaliana influences the LRX/RALF/FER growth regulatory module. PLoS Genetics, 20(1):e1011087.
- Publication Year :
- 2024
-
Abstract
- Plant cell growth involves coordination of numerous processes and signaling cascades among the different cellular compartments to concomitantly enlarge the protoplast and the surrounding cell wall. The cell wall integrity-sensing process involves the extracellular LRX (LRR-Extensin) proteins that bind RALF (Rapid ALkalinization Factor) peptide hormones and, in vegetative tissues, interact with the transmembrane receptor kinase FERONIA (FER). This LRX/RALF/FER signaling module influences cell wall composition and regulates cell growth. The numerous proteins involved in or influenced by this module are beginning to be characterized. In a genetic screen, mutations in Apyrase 7 (APY7) were identified to suppress growth defects observed in lrx1 and fer mutants. APY7 encodes a Golgi-localized NTP-diphosphohydrolase, but opposed to other apyrases of Arabidopsis, APY7 revealed to be a negative regulator of cell growth. APY7 modulates the growth-inhibiting effect of RALF1, influences the cell wall architecture and -composition, and alters the pH of the extracellular matrix, all of which affect cell growth. Together, this study reveals a function of APY7 in cell wall formation and cell growth that is connected to growth processes influenced by the LRX/RALF/FER signaling module.
Details
- Database :
- OAIster
- Journal :
- Gupta, Shibu; Guérin, Amandine; Herger, Aline; Hou, Xiaoyu; Schaufelberger, Myriam; Roulard, Romain; Diet, Anouck; Roffler, Stefan; Lefebvre, Valérie; Wicker, Thomas; Pelloux, Jérôme; Ringli, Christoph (2024). Growth-inhibiting effects of the unconventional plant APYRASE 7 of Arabidopsis thaliana influences the LRX/RALF/FER growth regulatory module. PLoS Genetics, 20(1):e1011087.
- Notes :
- application/pdf, info:doi/10.5167/uzh-257337, English
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1443057942
- Document Type :
- Electronic Resource