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A conserved brassinosteroid-mediated BES1-CERP-EXPA3 signaling cascade controls plant cell elongation.
Cell Rep
April 2023
College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China. Electronic address:
Continuous plant growth is achieved by cell division and cell elongation. Brassinosteroids control cell elongation and differentiation throughout plant life. However, signaling cascades underlying BR-mediated cell elongation are unknown.
View Article and Find Full Text PDFGW10, a member of P450 subfamily regulates grain size and grain number in rice.
Theor Appl Genet
December 2021
Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, 510642, China.
A quantitative trait locus GW10 is located on Chromosome 10 by map-based cloning, which encodes a P450 Subfamily protein. The GW10 regulates grain size and grain number in rice involved in the BR pathway. Grain size and grain number play extremely important roles in rice grain yield.
View Article and Find Full Text PDFProteolytic Processing of SERK3/BAK1 Regulates Plant Immunity, Development, and Cell Death.
Plant Physiol
May 2019
Department of Plant Pathology and Microbiology, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
Plants have evolved many receptor-like kinases (RLKs) to sense extrinsic and intrinsic cues. The signaling pathways mediated by multiple Leucine-rich repeat (LRR) RLK (LRR-RLK) receptors require ligand-induced receptor-coreceptor heterodimerization and transphosphorylation with BRI1-ASSOCIATED RECEPTOR KINASE1 (BAK1)/SOMATIC EMBRYOGENESIS RECEPTOR KINASES family LRR-RLKs. Here we reveal an additional layer of regulation of BAK1 via a Ca-dependent proteolytic cleavage process that is conserved in Arabidopsis (), , and The proteolytic cleavage of BAK1 is intrinsically regulated in response to developmental cues and immune stimulation.
View Article and Find Full Text PDFThe chloroplast protein BPG2 functions in brassinosteroid-mediated post-transcriptional accumulation of chloroplast rRNA.
Plant J
February 2010
Plant Chemical Biology Research Unit, RIKEN Advanced Science Institute, Wako, Saitama 351-0198, Japan.
Brassinazole (Brz) is a specific inhibitor of the biosynthesis of brassinosteroids (BRs), which regulate plant organ and chloroplast development. We identified a recessive pale green Arabidopsis mutant, bpg2-1 (Brz-insensitive-pale green 2-1) that showed reduced sensitivity to chlorophyll accumulation promoted by Brz in the light. BPG2 encodes a chloroplast-localized protein with a zinc finger motif and four GTP-binding domains that are necessary for normal chloroplast biogenesis.
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