期刊
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES
卷 86, 期 5, 页码 455-471出版社
JAPAN ACAD
DOI: 10.2183/pjab.86.455
关键词
mitochondria; plastids; division machinery; organelles; maternal inheritance; Cyanidioschyzon merolae
资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [19207004]
- Program for the Promotion of Basic Research Activities for Innovative Biosciences (PROBRAIN)
Mitochondria and plastids have their own DNAs and are regarded as descendants of endosymbiotic prokaryotes. Organellar DNAs are not naked in vivo but are associated with basic proteins to form DNA-protein complexes (called organelle nuclei). The concept of organelle nuclei provides a new approach to explain the origin, division, and inheritance of organelles. Organdies divide using organelle division rings (machineries) after organelle-nuclear division. Organelle division machineries are a. chimera of the FtsZ (filamentous temperature sensitive Z) ring of bacterial origin and the eukaryotic mechanochemical dynamin ring. Thus, organelle division machineries contain a key to solve the origin of organelles (eukaryotes). The maternal inheritance of organelles developed during sexual reproduction and it is also probably intimately related to the origin of organelles. The aims of this review are to describe the strategies used to reveal the dynamics of organelle division machineries, and the significance of the division machineries and maternal inheritance in the origin and evolution of eukaryotes.
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