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Article

A Mutation in the bHLH Domain of the SPCH Transcription Factor Uncovers a BR-Dependent Mechanism for Stomatal Development.

Plant physiology - 1 Jun 2017

de Marcos Alberto, Houbaert Anaxi, Triviño Magdalena, Delgado Dolores, Martín-Trillo Mar, Russinova Eugenia, Fenoll Carmen, Mena Montaña

Abstract excerpt

The asymmetric cell divisions necessary for stomatal lineage initiation and progression in Arabidopsis (Arabidopsis thaliana) require the function of the basic helix-loop-helix (bHLH) transcription factor SPEECHLESS (SPCH). Mutants lacking SPCH do not produce stomata or lineages. Here, we isolated a new spch-5 allele carrying a point mutation in the bHLH domain that displayed normal growth, but had an extremely...

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Identifiers

PMID: 28507175
DOI: 10.1104/pp.17.00615
PMCID: PMC5462054

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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