Auxin inhibits stomatal development through MONOPTEROS repression of a mobile peptide gene STOMAGEN in mesophyll.

ABSTRACT: Plants, as sessile organisms, must coordinate various physiological processes to adapt to ever-changing surrounding environments. Stomata, the epidermal pores facilitating gas and water exchange, play important roles in optimizing photosynthetic efficiency and adaptability. Stomatal development is under the control of an intrinsic program mediated by a secretory peptide gene family--namely, EPIDERMAL PATTERNING FACTOR, including positively acting STOMAGEN/EPFL9. The phytohormone brassinosteroids and environment factor light also control stomatal production. However, whether auxin regulates stomatal development and whether peptide signaling is coordinated with auxin signaling in the regulation of stomatal development remain largely unknown. Here we show that auxin negatively regulates stoma

SUBMITTER: Zhang JY 

PROVIDER: S-EPMC4115497 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature