Functional differentiation of endosomes in Arabidopsis cells

被引：214

作者：

Ueda, T

Uemura, T

Sato, MH

Nakano, A

机构：

[1] Univ Tokyo, Grad Sch Sci, Dept Biol Sci, Bunkyo Ku, Tokyo 1130033, Japan

[2] Kyoto Univ, Grad Sch Biostudies, Sakyo Ku, Kyoto 6068501, Japan

[3] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan

[4] RIKEN, Discovery Res Inst, Mol Membrane Biol Lab, Wako, Saitama 3510198, Japan

来源：

PLANT JOURNAL | 2004年 / 40卷 / 05期

关键词：

Ara6; Ara7; endosome; SNARE; Rab GTPase; GNOM;

D O I：

10.1111/j.1365-313X.2004.02249.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Endocytosis plays an important role in plant physiology, but how endocytic organelles are organized remains unknown. We present the evidence that endosomes are functionally differentiated in Arabidopsis cells. Two types of Rab5-related GTPases are localized on distinct population of endosomes in a partially overlapping manner. Ara7 and Rha1 are on an early type of endosomes with AtVamp727, where recycling of plasma membrane proteins occurs. In contrast, the plant-unique Rab5, Ara6, resides on distinct endosomes with the prevacuolar SNAREs. Partially overlapping localization of Ara6 and Ara7/Rha1 with reciprocal gradients suggests maturation of endosomes from one to the other.

引用

页码：783 / 789

页数：7

共 28 条

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