ArticleJournal of experimental botany2016
Root cap-dependent gravitropic U-turn of maize root requires light-induced auxin biosynthesis via the YUC pathway in the root apex.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 35 citations in OpenAlex.
- Investigation ofPlant signaling & behavior · 2024Article
- Single-cell RNA sequencing profiles reveal cell type-specific transcriptional regulation networks conditioning fungal invasion in maize roots.Plant biotechnology journal · 2023Article
- The Role of Light-Regulated Auxin Signaling in Root Development.International journal of molecular sciences · 2023Review
- Genome-Wide Identification and Analysis of the Maize Serine Peptidase S8 Family Genes in Response to Drought at Seedling Stage.Plants (Basel, Switzerland) · 2023Article
- Involvement of Auxin Biosynthesis and Transport in the Antheridium and Prothalli Formation inPlants (Basel, Switzerland) · 2021Article
- Primary Root and Mesocotyl Elongation in Maize Seedlings: Two Organs with Antagonistic Growth below the Soil Surface.Plants (Basel, Switzerland) · 2021Review
- Individuality, self and sociality of vascular plants.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Article
- Transformation of EndophyticFrontiers in bioengineering and biotechnology · 2021Article
- Gravity Reduced Nitrogen UptakeFrontiers in plant science · 2021Article
- The Roles of Auxin Biosynthesis YUCCA Gene Family in Plants.International journal of molecular sciences · 2019Review
- Light and auxin signaling cross-talk programme root development in plants.Journal of biosciences · 2019Review
- Light Signaling, Root Development, and Plasticity.Plant physiology · 2018Review
- Phytochrome and Phytohormones: Working in Tandem for Plant Growth and Development.Frontiers in plant science · 2018Review
- Sense of space: Tactile sense for exploratory behavior of roots.Communicative & integrative biology · 2018Article
- Control of Endogenous Auxin Levels in Plant Root Development.International journal of molecular sciences · 2017Review
- Comparative Transcriptome Analysis Reveal Candidate Genes Potentially Involved in Regulation of Primocane Apex Rooting in Raspberry (Frontiers in plant science · 2017Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gravitropism refers to the growth or movement of plants that is influenced by gravity. Roots exhibit positive gravitropism, and the root cap is thought to be the gravity-sensing site. In some plants, the root cap requires light irradiation for positive gravitropic responses. However, the mechanisms regulating this phenomenon are unknown. We herein report that maize roots exposed to white light continuously for ≥1-2h show increased indole-3-acetic acid (IAA) levels in the root tips, especially in the transition zone (1-3mm from the tip). Treatment with IAA biosynthesis inhibitors yucasin and l-kynurenine prevented any increases in IAA content and root curvature under light conditions. Analyses of the incorporation of a stable isotope label from tryptophan into IAA revealed that some of the IAA in roots was synthesized in the root apex. Furthermore, Zmvt2 and Zmyuc gene transcripts were detected in the root apex. One of the Zmyuc genes (ZM2G141383) was up-regulated by light irradiation in the 0-1mm tip region. Our findings suggest that IAA accumulation in the transition zone is due to light-induced activation of Zmyuc gene expression in the 0-1mm root apex region. Light-induced changes in IAA levels and distributions mediate the maize root gravitropic U-turn.
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