Phytocytokine signalling reopens stomata in plant immunity and water loss.

ABSTRACT: Stomata exert considerable effects on global carbon and water cycles by mediating gas exchange and water vapour^1,2. Stomatal closure prevents water loss in response to dehydration and limits pathogen entry^3,4. However, prolonged stomatal closure reduces photosynthesis and transpiration and creates aqueous apoplasts that promote colonization by pathogens. How plants dynamically regulate stomatal reopening in a changing climate is unclear. Here we show that the secreted peptides SMALL PHYTOCYTOKINES REGULATING DEFENSE AND WATER LOSS (SCREWs) and the cognate receptor kinase PLANT SCREW UNRESPONSIVE RECEPTOR (NUT) counter-regulate phytohormone abscisic acid (ABA)- and microbe-associated molecular pattern (MAMP)-induced stomatal closure. SCREWs sensed by NUT function as im

SUBMITTER: Liu Z 

PROVIDER: S-EPMC9710542 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature