DOI: 10.1126/science.273.5277.948. <b> <i>Arabidopsis AUX1</i> </b> Gene: A Permease-Like Regulator of Root Gravitropism

Arabidopsis AUX1 Gene: A Permease-Like Regulator of Root Gravitropism

10.1126/science.273.5277.948

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

The plant hormone auxin regulates various developmental processes including root formation, vascular development, and gravitropism. Mutations within the AUX1 gene confer an auxin-resistant root growth phenotype and abolish root gravitropic curvature. Polypeptide sequence similarity to amino acid permeases suggests that AUX1 mediates the transport of an amino acid-like signaling molecule. Indole-3-acetic acid, the major form of auxin in higher plants, is structurally similar to tryptophan and is a likely substrate for the AUX1 gene product. The cloned AUX1 gene can restore the auxin-responsiveness of transgenic aux1 roots. Spatially, AUX1 is expressed in root apical tissues that regulate root gravitropic curvature.

Bibliography

Bennett, M. J., Marchant, A., Green, H. G., May, S. T., Ward, S. P., Millner, P. A., Walker, A. R., Schulz, B., & Feldmann, K. A. (1996). Arabidopsis AUX1 Gene: A Permease-Like Regulator of Root Gravitropism. Science, 273(5277), 948â950.

Authors 9

Malcolm J. Bennett (first)
Alan Marchant (additional)
Haydn G. Green (additional)
Sean T. May (additional)
Sally P. Ward (additional)
Paul A. Millner (additional)
Amanda R. Walker (additional)
Burkhard Schulz (additional)
Kenneth A. Feldmann (additional)

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Dates

Type	When
Created	18 years, 10 months ago (Oct. 27, 2006, 2:30 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 11:21 p.m.)
Indexed	3 days, 13 hours ago (Aug. 29, 2025, 6:34 a.m.)
Issued	29 years ago (Aug. 16, 1996)
Published	29 years ago (Aug. 16, 1996)
Published Print	29 years ago (Aug. 16, 1996)

Funders 0

None

BibTeX

@article{Bennett_1996, title={ Arabidopsis AUX1 Gene: A Permease-Like Regulator of Root Gravitropism}, volume={273}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.273.5277.948}, DOI={10.1126/science.273.5277.948}, number={5277}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Bennett, Malcolm J. and Marchant, Alan and Green, Haydn G. and May, Sean T. and Ward, Sally P. and Millner, Paul A. and Walker, Amanda R. and Schulz, Burkhard and Feldmann, Kenneth A.}, year={1996}, month=aug, pages={948–950} }

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