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SMXL3 controls multiple aspects of Arabidopsis development via EAR motif-dependent and -independent functions.

The Plant journal : for cell and molecular biology - 1 Mar 2026

Tolnai Zoltán, Badics Eszter, Khan Imran, Posta Martin, Fábián Attila, Soós Vilmos

Abstract excerpt

SMAX1-LIKE (SMXL) proteins, previously linked to strigolactone and karrikin signalling, play diverse and partially redundant roles in plant development. The divergent SMXL4 superclade-comprising SMXL3, SMXL4 and SMXL5-is not subject to strigolactone- or karrikin-dependent proteolysis. Although these proteins have been associated with phloem differentiation and primary root growth in Arabidopsis thaliana, their...

Topics

Arabidopsis
Arabidopsis Proteins
Plant Roots
Seedlings
Gene Expression Regulation, Plant
Mutation
Signal Transduction
Hypocotyl
Intracellular Signaling Peptides and Proteins

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PMID: 41793263
DOI: 10.1111/tpj.70763
PMCID: PMC12966999

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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