Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 60, Issue 4, Pages 1093-1107Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/ern240
Keywords
AUX; LAX; cellular trafficking; membrane composition; P-glycoprotein; phosphorylation; pin-formed; protein maturation; ubiquitination
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Funding
- US Department of Energy
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Auxin concentration gradients, established by polar transport of auxin, are essential for the establishment and maintenance of polar growth and morphological patterning. Three families of cellular transport proteins, PIN-formed (PIN), P-glycoprotein (ABCB/PGP), and AUXIN RESISTANT 1/LIKE AUX1 (AUX1/LAX), can independently and co-ordinately transport auxin in plants. Regulation of these proteins involves intricate and co-ordinated cellular processes, including protein-protein interactions, vesicular trafficking, protein phosphorylation, ubiquitination, and stabilization of the transporter complexes on the plasma membrane.
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