Arabidopsis AUX1 gene: A permease-like regulator of root gravitropism
UNSPECIFIED. (1996) Arabidopsis AUX1 gene: A permease-like regulator of root gravitropism. SCIENCE, 273 (5277). pp. 948-950. ISSN 0036-8075Full text not available from this repository.
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.
|Item Type:||Journal Article|
|Journal or Publication Title:||SCIENCE|
|Publisher:||AMER ASSOC ADVANCEMENT SCIENCE|
|Date:||16 August 1996|
|Number of Pages:||3|
|Page Range:||pp. 948-950|
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