منابع مشابه
Chloroplast Division: A Work of ARTEMIS
Chloroplasts contain three membrane systems that constrict together during division of the organelle. A newly identified protein, ARTEMIS, may shed light on the nuclear control of chloroplast division, and also on the mechanism of thylakoid membrane fission and how this is coordinated with fission of the two envelope membranes.
متن کاملInsights into the Mechanisms of Chloroplast Division
The endosymbiosis of a free-living cyanobacterium into an ancestral eukaryote led to the evolution of the chloroplast (plastid) more than one billion years ago. Given their independent origins, plastid proliferation is restricted to the binary fission of pre-existing plastids within a cell. In the last 25 years, the structure of the supramolecular machinery regulating plastid division has been ...
متن کاملCell and chloroplast division requires ARTEMIS.
Chloroplasts are endosymbiotic organelles of cyanobacterial origin. It seems reasonable to assume that cell division and organelle division still share general principles, as shown for the FtsZ proteins. However, further components involved in this process are largely unknown. Here we describe ARTEMIS, a nuclear-encoded protein of chloroplast inner envelope membranes that is required for organe...
متن کاملChloroplast DNA replication is regulated by the redox state independently of chloroplast division in Chlamydomonas reinhardtii.
Chloroplasts arose from a cyanobacterial endosymbiont and multiply by division. In algal cells, chloroplast division is regulated by the cell cycle so as to occur only once, in the S phase. Chloroplasts possess multiple copies of their own genome that must be replicated during chloroplast proliferation. In order to examine how chloroplast DNA replication is regulated in the green alga Chlamydom...
متن کاملThe Mechanism of Chloroplast Division in Higher Plants
The Mechanism of Chloroplast Division in Higher Plants. (April 2000) John Michael Proctor Department of Biochemistry/Biophysics Texas A&M University Fellows Advisor: Dr. John E. Mullet Department o f Biochemistry/Biophysics The majority of plant cells contain plastids that are self-replicating, double membrane organelles with their own unique genetic component. The current investigation concern...
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ژورنال
عنوان ژورنال: Traffic
سال: 2007
ISSN: 1398-9219
DOI: 10.1111/j.1600-0854.2007.00545.x