WOX going on: CLE peptides in plant development
Current Opinion in Plant Biology(2021)
摘要
The development of plant tissues requires cell-cell communication facilitated by chemical and peptide hormones, including small signaling peptides in the CLAVATA3/ EMBRYO-SURROUNDING REGION (CLE) family. The paradigmatic CLE signaling peptide CLAVATA3 regulates the size of the shoot apical meristem and the expression of the stem cell-promoting WUSCHEL transcription factor through an unknown mechanism. This review discusses recent advances in CLE signaling, showing that CLE pathways are conserved in bryophytes, that CLE peptides in Arabidopsis thaliana regulate stem cell identity and cell division in root tissues, and connections to auxin biosynthesis in regulating flower and leaf development. These advances shed light on potential WUSCHEL family-independent aspects of CLE signaling and the overlap between CLE and auxin signaling
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关键词
CLE peptide,CLAVATA,Meristem,Auxin,WOX,Plant development,Receptor kinase
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