J Integr Plant Biol. ›› 2015, Vol. 57 ›› Issue (3): 247-255.DOI: 10.1111/jipb.12285

Special Issue: Cell Biology and Functions

• Cell and Developmental Biology • Previous Articles     Next Articles

Organ-specific effects of brassinosteroids on stomatal production coordinate with the action of TOO MANY MOUTHS

Ming Wang1,2†, Kezhen Yang1† and Jie Le1*   

  1. 1Key Laboratory of Plant Molecular Physiology, Institute of Botany, the Chinese Academy of Sciences, Beijing, China
    2University of Chinese Academy of Sciences, Beijing, China
  • Received:2014-08-05 Accepted:2014-09-17 Published:2014-09-18
  • About author:These authors contributed equally to this work.
    *Correspondence: E-mail: lejie@ibcas.ac.cn

Abstract:

In Arabidopsis, stomatal development initiates after protodermal cells acquire stomatal lineage cell fate. Stomata or their precursors communicate with their neighbor epidermal cells to ensure the “one cell spacing” rule. The signals from EPF/EPFL peptide ligands received by TOO MANY MOUTHS (TMM) and ERECTA-family receptors are supposed to be transduced by YODA MAPK cascade. A basic helix-loop-helix transcription factor SPEECHLESS (SPCH) is another key regulator of stomatal cell fate determination and asymmetric entry divisions, and SPCH activity is regulated by YODA MAPK cascade. Brassinosteroid (BR) signaling, one of the most well characterized signal transduction pathways in plants, contributes to the control of stomatal production. But opposite organ-specific effects of BR on stomatal production were reported. Here we confirm that stomatal production in hypocotyls is controlled by BR levels. YODA and CYCD4 are not essential for BR stomata-promoting function. Furthermore, we found that BR could confer tmm hypocotyls clustered stomatal phenotype, indicating that the BR organ-specific effects on stomatal production might coordinate with the TMM organ-specific actions.

 

Wang M, Yang K, Le J (2015). Organ‐specific effects of brassinosteroids on stomatal production coordinate with the action of TOO MANY MOUTHS. J Integr Plant Biol 57: 247–255. doi: 10.1111/jipb.12285

Key words: Arabidopsis, Brassinosteroids, development, stomata

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2021 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
备案号:京ICP备16067583号-22