The march of the PINs: developmental plasticity by dynamic polar targeting in plant cells

被引:210
作者
Grunewald, Wim [1 ,2 ]
Friml, Jiri [1 ,2 ]
机构
[1] Univ Ghent VIB, Dept Plant Syst Biol, B-9052 Ghent, Belgium
[2] Univ Ghent, Dept Plant Biotechnol & Genet, B-9000 Ghent, Belgium
关键词
endocytosis; PIN proteins; polar auxin transport; recycling; trafficking; AUXIN EFFLUX CARRIER; YUCCA FLAVIN MONOOXYGENASES; ARABIDOPSIS-THALIANA; BORON TRANSPORTER; PATTERN-FORMATION; PROTEIN-KINASE; HAIR-CELLS; ENDOCYTOSIS; TRAFFICKING; ARF;
D O I
10.1038/emboj.2010.181
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Development of plants and their adaptive capacity towards ever-changing environmental conditions largely depend on the spatial distribution of the plant hormone auxin. At the cellular level, various internal and external signals are translated into specific changes in the polar, subcellular localization of auxin transporters from the PIN family thereby directing and redirecting the intercellular fluxes of auxin. The current model of polar targeting of PIN proteins towards different plasma membrane domains encompasses apolar secretion of newly synthesized PINs followed by endocytosis and recycling back to the plasma membrane in a polarized manner. In this review, we follow the subcellular march of the PINs and highlight the cellular and molecular mechanisms behind polar foraging and subcellular trafficking pathways. Also, the entry points for different signals and regulations including by auxin itself will be discussed within the context of morphological and developmental consequences of polar targeting and subcellular trafficking. The EMBO Journal (2010) 29, 2700-2714. doi:10.1038/emboj.2010.181
引用
收藏
页码:2700 / 2714
页数:15
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