MID1-COMPLEMENTING ACTIVITY regulates cell proliferation and development via Ca2+ signaling in Marchantia polymorpha.

ABSTRACT: MID1-COMPLEMENTING ACTIVITY (MCA) is a land plant-specific, plasma membrane protein, and Ca2+ signaling component that responds to exogenous mechanical stimuli, such as touch, gravity, and hypotonic-osmotic stress, in various plant species. MCA is essential for cell proliferation and differentiation during growth and development in rice (Oryza sativa) and maize (Zea mays). However, the mechanism by which MCA mediates cell proliferation and differentiation via Ca2+ signaling remains unknown. Here, we address this question using the liverwort Marchantia polymorpha. We show that the M. polymorpha MCA ortholog, MpMCA, is highly expressed in actively dividing regions, such as apical notches in the thalli and developing gametangiophores, and that MpMCA is a plasma membrane protein. In vivo, Ca2+

SUBMITTER: Iwano M 

PROVIDER: S-EPMC11663713 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature