Low nitrogen conditions accelerate flowering by modulating the phosphorylation state of FLOWERING BHLH 4 in Arabidopsis

SATO Takeo YAMAGUCHI Junji

Department of Biological Sciences

May. 11, 2021

Press release (in Japanese)

Abstract
Nitrogen (N) is an essential nutrient that affects multiple plant developmental processes, including flowering. As flowering requires resources to develop sink tissues for reproduction, nutrient availability is tightly linked to this process. Low N levels accelerate floral transition; however, the molecular mechanisms underlying this response are not well understood. Here, we identify the FLOWERING BHLH 4 (FBH4) transcription factor as a key regulator of N-responsive flowering in Arabidopsis. Low N-induced early flowering is compromised in fbh quadruple mutants. We found that…..

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Article information:
Sanagi M, Aoyama S, Kubo A, Lu Y, Sato Y, Ito S, Abe M, Mitsuda N, Ohme-Takagi M, Kiba T, Nakagami H, Rolland F, Yamaguchi J, Imaizumi T and Sato T (2021)
Low nitrogen conditions accelerate flowering by modulating the phosphorylation state of FLOWERING BHLH 4 in Arabidopsis. Proc. Natl. Acad. Sci. USA 118: e2022942118. 
DOI: 10.1073/pnas.2022942118