Regulation of Polar Auxin Transport by AtPIN1 in Arabidopsis Vascular Tissue
Open Access
- 18 December 1998
- journal article
- editorial
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 282 (5397), 2226-2230
- https://doi.org/10.1126/science.282.5397.2226
Abstract
Polar auxin transport controls multiple developmental processes in plants, including the formation of vascular tissue. Mutations affecting the PIN-FORMED (PIN1) gene diminish polar auxin transport inArabidopsis thaliana inflorescence axes. The AtPIN1gene was found to encode a 67-kilodalton protein with similarity to bacterial and eukaryotic carrier proteins, and the AtPIN1 protein was detected at the basal end of auxin transport–competent cells in vascular tissue. AtPIN1 may act as a transmembrane component of the auxin efflux carrier.Keywords
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