The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
AUX1 Promotes Lateral Root Formation by Facilitating Indole-3-Acetic Acid Distribution between Sink and Source Tissues in the Arabidopsis Seedling
Open accessAbstract
Arabidopsis root architecture is regulated by shoot-derived signals such as nitrate and auxin. We report that mutations in the putative auxin influx carrier AUX1 modify root architecture as a result of the disruption in hormone transport between indole-3-acetic acid (IAA) source and sink tissues. Gas chromatography-selected reaction monitoring-mass spectrometry measurements revealed that the aux1 mutant exhibited altered IAA distribution in young leaf and root tissues, the major IAA source and sink organs, respectively, in the developing seedling. Expression studies using the auxin-inducible reporter IAA2::uidA revealed that AUX1 facilitates IAA loading into the leaf vascular transport system. AUX1 also facilitates IAA unloading in the primary root apex and developing lateral root primordium. Exogenous application of the synthetic auxin 1-naphthylacetic acid is able to rescue the aux1 lateral root phenotype, implying that root auxin levels are suboptimal for lateral root primordium initiation in the mutant.
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Cites
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Auxin: A Trigger for Change in Plant Development
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The auxin influx carrier LAX3 promotes lateral root emergence
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Self-citationPlant root growth, architecture and function
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Metadata
- Authors
- Marchant, A., Bhalerao, R., Casimiro, I., Eklöf, J., Casero, P. J., Bennett, M., & Sandberg, G.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2002-03
- Volume
- 14
- Issue
- 3
- Pages
- 589-597
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2117287206
- Cited by
- 537
- References
- 23
- FWCI
- 25.76
- Type
- journal article
- Language
- en
- Open access
- green
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