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  • Title: Regulation of polar auxin transport by AtPIN1 in Arabidopsis vascular tissue.
    Author: Gälweiler L, Guan C, Müller A, Wisman E, Mendgen K, Yephremov A, Palme K.
    Journal: Science; 1998 Dec 18; 282(5397):2226-30. PubMed ID: 9856939.
    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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