期刊
JOURNAL OF CELL SCIENCE
卷 131, 期 2, 页码 -出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jcs.210310
关键词
Actin filament; Actin polymerization; Blue light; Chloroplast; Chloroplast movement; Myosin; Phototropin
类别
资金
- Japan Society for the Promotion of Science (JSPS) KAKENHI [20227001, 23120523, 25120721, 25251033, 16K14758]
- National Research Foundation of Korea (NRF) - Ministry of Education [2016R1D1A3B03935947]
Plants are sessile and require diverse strategies to adapt to fluctuations in the surrounding light conditions. Consequently, the photorelocation movement of chloroplasts is essential to prevent damages that are induced by intense light (avoidance response) and to ensure efficient photosynthetic activities under weak light conditions (accumulation response). The mechanisms that underlie chloroplast movements have been revealed through analysis of the behavior of individual chloroplasts and it has been found that these organelles can move in any direction without turning. This implies that any part of the chloroplast periphery can function as the leading or trailing edge during movement. This ability is mediated by a special structure, which consists of short actin filaments that are polymerized at the leading edge of moving chloroplasts and are specifically localized in the space between the chloroplast and the plasma membrane, and is called chloroplast-actin. In addition, several of the genes that encode proteins that are involved in chloroplast-actin polymerization or maintenance have been identified. In this Review, we discuss the mechanisms that regulate chloroplast movements through polymerization of the chloroplast-actin and propose a model for actin-driven chloroplast photorelocation movement.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据