内共生：重新审视质体起源

Endosymbiosis: double-take on plastid origins.

作者信息

Archibald John M

机构信息

The Canadian Institute for Advanced Research, Program in Evolutionary Biology, Department of Biochemistry and Molecular Biology, Dalhousie University, Sir Charles Tupper Medical Building, Halifax, Nova Scotia, B3H 1X5, Canada.

出版信息

Curr Biol. 2006 Sep 5;16(17):R690-2. doi: 10.1016/j.cub.2006.08.006.

DOI:10.1016/j.cub.2006.08.006

PMID:16950094

Abstract

Plastids--the light-harvesting machines of plant and algal cells--evolved from cyanobacteria inside a eukaryotic host more than a billion years ago. New data reveal that a mysterious unicellular alga acquired its photosynthetic apparatus much more recently than other eukaryotes, affording a second look at the primary endosymbiotic origin of plastids.

摘要

质体——植物和藻类细胞的光捕获机器——在十亿多年前从真核宿主细胞内的蓝细菌进化而来。新数据显示，一种神秘的单细胞藻类获得其光合装置的时间比其他真核生物要近得多，这为重新审视质体的初级内共生起源提供了契机。