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Animal Mitochondria: Evolution, Function, and Disease

[ Vol. 14 , Issue. 1 ]


M. Tao, C.-P. You, R.-R. Zhao, S.-J. Liu, Z.-H. Zhang, C. Zhang and Y. Liu   Pages 115 - 124 ( 10 )


Mitochondria are sub-cellular organelles responsible for producing the majority of cellular energy through the process of oxidative phosphorylation (OXPHOS), and are found in nearly all eukaryotic cells. Mitochondria have a unique genetic system, mitochondrial DNA (mtDNA), which is a small, self-replicating and diverse genome. In the past 30 years, mtDNA has made significant contribution to molecular ecology and phylogeography. Mitochondria also represent a unique system of mitochondrial–nuclear genomic cooperation. Additionally, mitochondrial dysfunction can be fatal. In this paper, we review several aspects of mitochondria, including evolution and the origin of mitochondria, energy supply and the central role of mitochondria in apoptosis, and mitochondrial dysfunction. It is shown that mitochondria play a critical role in many aspects of life.


Apoptosis, mitochondria, mtDNA, OXPHOS.


Key Laboratory of Protein Chemistry & Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China.

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