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Article

Phosphorylation-dependent activation of the bHLH transcription factor ICE1/SCRM promotes polarization of the Arabidopsis zygote.

The New phytologist - 1 Feb 2025

Chen Houming, Xiong Feng, Wangler Alexa-Maria, Bischoff Torren, Wang Kai, Miao Yingjing, Slane Daniel, Schwab Rebecca, Laux Thomas, Bayer Martin

Abstract excerpt

In Arabidopsis thaliana, the asymmetric cell division (ACD) of the zygote gives rise to the embryo proper and an extraembryonic suspensor, respectively. This process is controlled by the ERECTA-YODA-MPK3/6 receptor kinase-MAP kinase-signaling pathway, which also orchestrates ACDs in the epidermis. In this context, the bHLH transcription factor ICE1/SCRM is negatively controlled by MPK3/6-directed phosphorylation....

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Identifiers

PMID: 39543803
DOI: 10.1111/nph.20265
PMCID: PMC11711944

Genes

ACD
ICE1

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