ArticleJournal of experimental botany2014
Inducible knock-down of GNOM during root formation reveals tissue-specific response to auxin transport and its modulation of local auxin biosynthesis.
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Eukaryotic chaperonin coordinates root meristem activity by regulating SEC31B-dependent COPII vesicle trafficking of PIN auxin efflux carrier in Arabidopsis.Journal of integrative plant biology · 2026Article
- Nodule organogenesis in Medicago truncatula requires local stage-specific auxin biosynthesis and transport.Plant physiology · 2025Article
- An inducible genome editing system for plants.Nature plants · 2020Article
- The Roles of Auxin Biosynthesis YUCCA Gene Family in Plants.International journal of molecular sciences · 2019Review
- Control of Endogenous Auxin Levels in Plant Root Development.International journal of molecular sciences · 2017Review
- The AP2-type transcription factors DORNRÖSCHEN and DORNRÖSCHEN-LIKE promote G1/S transition.Molecular genetics and genomics : MGG · 2016Article
- Direct evidence that suspensor cells have embryogenic potential that is suppressed by the embryo proper during normal embryogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- A comprehensive, genome-wide analysis of autophagy-related genes identified in tobacco suggests a central role of autophagy in plant response to various environmental cues.DNA research : an international journal for rapid publication of reports on genes and genomes · 2015Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In plants, active transport of auxin plays an essential role in root development. Localization of the PIN1 auxin transporters to the basal membrane of cells directs auxin flow and depends on the trafficking mediator GNOM. GNOM-dependent auxin transport is vital for root development and thus offers a useful tool for the investigation of a possible tissue-specific response to dynamic auxin transport. To avoid pleiotropic effects, DEX-inducible expression of GNOM antisense RNA was used to disrupt GNOM expression transiently or persistently during embryonic root development. It was found that the elongation zone and the pericycle layer are the most sensitive to GNOM-dependent auxin transport variations, which is shown by the phenotypes in cell elongation and the initiation of lateral root primordia, respectively. This suggests that auxin dynamics is critical to cell differentiation and cell fate transition, but not to cell division. The results also reveal that GNOM-dependent auxin transport could affect local auxin biosynthesis. This suggests that local auxin biosynthesis may also contribute to the establishment of GNOM-dependent auxin gradients in specific tissues, and that auxin transport and local auxin biosynthesis may function together in the regulatory network for initiation and development of lateral root primordia. Thus, the data reveal a tissue-specific response to auxin transport and modulation of local auxin biosynthesis by auxin transport.
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