Suppression of class I compensated cell enlargement by xs2 mutation is mediated by salicylic acid signaling.

ABSTRACT: The regulation of leaf size has been studied for decades. Enhancement of post-mitotic cell expansion triggered by impaired cell proliferation in Arabidopsis is an important process for leaf size regulation, and is known as compensation. This suggests a key interaction between cell proliferation and cell expansion during leaf development. Several studies have highlighted the impact of this integration mechanism on leaf size determination; however, the molecular basis of compensation remains largely unknown. Previously, we identified extra-small sisters (xs) mutants which can suppress compensated cell enlargement (CCE) via a specific defect in cell expansion within the compensation-exhibiting mutant, angustifolia3 (an3). Here we revealed that one of the xs mutants, namely xs2, can suppress C

SUBMITTER: Fujikura U 

PROVIDER: S-EPMC7343186 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature