Copper Delivery to Chloroplast Proteins and its Regulation

被引：41

作者：

Aguirre, Guadalupe ^{[1
]}

Pilon, Marinus ^{[1
]}

机构：

[1] Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA

来源：

FRONTIERS IN PLANT SCIENCE | 2016年 / 6卷

基金：

美国国家科学基金会; 美国食品与农业研究所;

关键词：

plastocyanin; photosynthesis; copper deficiency; copper transporting P-type ATPase; polyphenol oxidase; superoxide dismutase; Cu-miRNA; P-TYPE ATPASE; SUPEROXIDE-DISMUTASE; ARABIDOPSIS-THALIANA; POLYPHENOL OXIDASE; METAL TRANSPORT; DOWN-REGULATION; HOMEOSTASIS; CHAPERONE; PLASTOCYANIN; ENVELOPE;

D O I：

10.3389/fpls.2015.01250

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Copper is required for photosynthesis in chloroplasts of plants because it is a cofactor of plastocyanin, an essential electron carrier in the thylakoid lumen. Other chloroplast copper proteins are copper/zinc superoxide dismutase and polyphenol oxidase, but these proteins seem to be dispensable under conditions of low copper supply when transcripts for these proteins undergo microRNA-mediated down regulation. Two ATP-driven copper transporters function in tandem to deliver copper to chloroplast compartments. This review seeks to summarize the mechanisms of copper delivery to chloroplast proteins and its regulation. We also delineate some of the unanswered questions that still remain in this field.

引用

页数：10

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