ArticlePlant physiology2024
Exogenous application of the apocarotenoid retinaldehyde negatively regulates auxin-mediated root growth.
Article in Plant physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Ethylene as the Molecular Coordinator of the Plant Growth-Defense Trade-Off Under Biotic and Abiotic Stresses.International journal of molecular sciences · 2026Review
- Genomic Insights into Adaptation ofPlants (Basel, Switzerland) · 2026Article
- Regulation of apocarotenoids for quality improvement and biofortification of horticultural crops.Journal of advanced research · 2026Review
- Get the ball rolling: update and perspective on the role of chloroplast plastoglobule-associated proteins under abiotic stress.Journal of experimental botany · 2025Review
- Effect of Fluridone on Roots and Leaf Buds Development in Stem Cuttings ofMolecules (Basel, Switzerland) · 2024Article
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Authors and funding
9 authors.
Funding
Abstract
Root development is essential for plant survival. The lack of carotenoid biosynthesis in the phytoene desaturase 3 (pds3) mutant results in short primary roots (PRs) and reduced lateral root formation. In this study, we showed that short-term inhibition of PDS by fluridone suppresses PR growth in wild type, but to a lesser extent in auxin mutants of Arabidopsis (Arabidopsis thaliana). Such an inhibition of PDS activity increased endogenous indole-3-acetic acid levels, promoted auxin signaling, and partially complemented the PR growth of an auxin-deficient mutant, the YUCCA 3 5 7 8 9 quadruple mutant (yucQ). The exogenous application of retinaldehyde (retinal), an apocarotenoid derived from β-carotene, complemented the fluridone-induced suppression of root growth, as well as the short roots of the pds3 mutant. Retinal also partially complemented the auxin-induced suppression of root growth. These results suggest that retinal may play a role in regulating root growth by modulating endogenous auxin levels.
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Registered trials
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