Stomatal clustering in Begonia improves water use efficiency by modulating stomatal movement and leaf structure.

ABSTRACT: Stomata are a pivotal adaptation of land plants and control gas exchange. While most plants present solitary stomata, some plant species experiencing chronic water deficiency display clustered stomata on their epidermis; for instance, limestone-grown begonias. Moreover, the membrane receptor TOO MANY MOUTHS (TMM) plays a major role in spacing stomata on the epidermis in Arabidopsis, but the function of its Begonia orthologs is unknown. We used two Asian begonias, Begonia formosana (single stomata) and B. hernandioides (clustered stomata), to explore the physiological function of stomatal clustering. We also introduced the Begonia TMMs into Arabidopsis tmm mutants to study the function of Begonia TMMs. B. hernandioides showed higher wa

SUBMITTER: Tsai MY 

PROVIDER: S-EPMC10168073 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature