ArticleThe Plant journal : for cell and molecular biology2025
Biosynthesis of very Long-chain fatty acids is required for Arabidopsis auxin-mediated embryonic and post-embryonic development.
Article in The Plant journal : for cell and molecular biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- PUCHI controls MYB94 and MYB96 to form the root cap cuticle of developing lateral roots.Plant physiology · 2026Article
- A precise splice: proper splicing patterns required for appropriate lipid metabolism during callus induction with cytokinin.Plant physiology · 2026Article
- Pre-mRNA splicing regulates cellular dedifferentiation via lipid metabolism in a cytokinin-dependent manner in Arabidopsis.Plant physiology · 2026Article
- Imaging of Molecular and Developmental Responses to Abiotic Stresses in Reproductive Tissues.Physiologia plantarumReview
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Authors and funding
12 authors.
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Abstract
Very long-chain fatty acids (VLCFAs), being constituents of different types of lipids, are critical factors in plant development, presumably due to their impact on the endomembrane system. The VLCFAs are synthesized in the endoplasmic reticulum by a heterotetrameric enzymatic complex including β-ketoacyl CoA reductase 1 (KCR1), whose mutant is lethal. Here, we describe the ectopic shoot meristems (esm) mutant, a viable kcr1 allele presumably affecting surface properties of the KCR1 protein. This kcr1-2 mutant shows reduced fatty acyl elongation that impacts VLCFAs. The kcr1-2 plants show severe defects during different stages of development, which all correlate with defects in polar localization and subcellular trafficking of PIN auxin transporters and resulting asymmetric auxin distribution. Detailed analysis of KCR1 expression and patterning defects in kcr1-2 suggests that KCR1 plays a role in delineating boundaries around meristematic and specialized differentiating tissues, including root and shoot meristems, initiating lateral roots, lateral root primordia, and trichomes. In these contexts, KCR1-produced VLCFAs may act in a non-cell-autonomous manner. Viable kcr1-2 represents a useful tool to study VLCFA roles in plant development and highlights VLCFAs as critical developmental factors at the interface of cell polarity and tissue development.
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Registered trials
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