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Comment
. 1998 Dec 18;282(5397):2226-30.
doi: 10.1126/science.282.5397.2226.

Regulation of polar auxin transport by AtPIN1 in Arabidopsis vascular tissue

L Gälweiler  1 , C Guan, A Müller, E Wisman, K Mendgen, A Yephremov, K Palme
Affiliations
Comment

Regulation of polar auxin transport by AtPIN1 in Arabidopsis vascular tissue

L Gälweiler et al. Science. .

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 in Arabidopsis 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.

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