期刊
BIOLOGIA PLANTARUM
卷 58, 期 3, 页码 531-538出版社
ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1007/s10535-014-0417-6
关键词
abscisic acid; guard cells; knock-out mutant; RT-qPCR; relative water content; stomata
资金
- Fondo per la Promozione di Accordi Istituzionali [BIOGESTECA 15083/RCC]
Plant vacuoles play several roles in controlling development, pathogen defence, and stress response. gamma VPE is a vacuolarlocalised cysteine protease with a caspase-1 like activity involved in the activation and maturation of downstream vacuolar hydrolytic enzymes that trigger hypersensitive cell death and tissue senescence. This work provides evidence that gamma VPE is strongly expressed in Arabidopsis guard cells and is involved in water stress response. The gamma vpe knock-out mutants showed reduced stomatal opening and an increased resistance to desiccation suggesting a new role of gamma VPE in control of stomatal movements.
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