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Cell Polarity and Patterning by PIN Trafficking through Early Endosomal Compartments in Arabidopsis thaliana
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نویسنده
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tanaka h. ,kitakura s. ,rakusová h. ,uemura t. ,feraru m.i. ,de rycke r. ,robert s. ,kakimoto t. ,friml j.
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منبع
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plos genetics - 2013 - دوره : 9 - شماره : 5
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چکیده
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Pin-formed (pin) proteins localize asymmetrically at the plasma membrane and mediate intercellular polar transport of the plant hormone auxin that is crucial for a multitude of developmental processes in plants. pin localization is under extensive control by environmental or developmental cues,but mechanisms regulating pin localization are not fully understood. here we show that early endosomal components arf gef ben1 and newly identified sec1/munc18 family protein ben2 are involved in distinct steps of early endosomal trafficking. ben1 and ben2 are collectively required for polar pin localization,for their dynamic repolarization,and consequently for auxin activity gradient formation and auxin-related developmental processes including embryonic patterning,organogenesis,and vasculature venation patterning. these results show that early endosomal trafficking is crucial for cell polarity and auxin-dependent regulation of plant architecture. © 2013 tanaka et al.
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آدرس
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department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,department of plant biotechnology and genetics,ghent university,gent,belgium,department of biological sciences,graduate school of science,osaka university,osaka, Japan, department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,department of plant biotechnology and genetics,ghent university,gent,belgium,department of biological sciences,graduate school of science,osaka university,osaka, Japan, department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,institute of science and technology austria (ist austria),klosterneuburg, Austria, department of biological sciences,graduate school of science,university of tokyo,tokyo, Japan, department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,department of plant biotechnology and genetics,ghent university,gent,belgium,department of applied genetics and cell biology,university of natural resources and life sciences (boku),vienna, Austria, department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,department of plant biotechnology and genetics,ghent university,gent, Belgium, department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,department of plant biotechnology and genetics,ghent university,gent,belgium,umeå plant science centre (upsc),department of forest genetics and plant physiology,swedish university of agricultural sciences,umeå, Sweden, department of biological sciences,graduate school of science,osaka university,osaka, Japan, department of plant systems biology,flanders institute for biotechnology (vib),gent,belgium,department of plant biotechnology and genetics,ghent university,gent,belgium,institute of science and technology austria (ist austria),klosterneuburg, Austria
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Authors
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