The CLE9/10 secretory peptide regulates stomatal and vascular development through distinct receptors. (December 2018)

• Record Type: Journal Article
• Authors: Qian, Pingping; Song, Wen; Yokoo, Toshiya; Minobe, Ayako; Wang, Guodong; Ishida, Takashi; Sawa, Shinichiro; Chai, Jijie; Kakimoto, Tatsuo
• Is Part Of: Nature plants. Volume 4:Number 12(2018)
• Page Start: 1071
• Page End: 1081
• Publication Date: 2018-12
• Subjects: Plants -- Periodicals; 580.5; 580 21
• DOI: 10.1038/s41477-018-0317-4
• Languages: English
• ISSNs: 2055-0278

Abstract

Abstract The frequency and orientation of cell division are regulated by intercellular signalling molecules; however, tissue-specific regulatory systems for cell divisions are only partially understood. Here, we report that the peptide hormone CLAVATA3/ESR-RELATED 9/10 (CLE9/10) regulates two different developmental processes, stomatal lineage development and xylem development, through two distinct receptor systems inArabidopsis thaliana . We show that the receptor kinase HAESA-LIKE 1 (HSL1) is a CLE9/10 receptor that regulates stomatal lineage cell division, and BARELY NO MERISTEM (BAM) class receptor kinases are CLE9/10 receptors that regulate periclinal cell division of xylem precursor cells. Both HSL1 and BAM1 bind to CLE9/10, but only HSL1 recruits SOMATIC EMBRYOGENESIS RECEPTOR KINASES as co-receptors in the presence of CLE9/10, suggesting different signalling modes for these receptor systems. Peptides play important roles in plants. Identical CLE9/10 peptides can be perceived by two receptor complexes, depending on the tissue context, during the control of different developmental processes: stomatal lineage and xylem development.