A View of Eukaryogenesis From Geological, Ecological, and Bioenergetic Perspectives

5 A View of Eukaryogenesis From Geological, Ecological, and Bioenergetic Perspectives 

High yield of ATP from aerobic respiration made possible the development of typically eukaryotic features (Vellai et al. 1998). It is suggested that the last common ancestor of all eukaryotes was an aerobically respiring organism capable of complete oxidation of carbohydrates to carbon dioxide and water. Some unicellular eukaryotes have either retained or secondarily acquired the ability for anaerobic respiration and hydrogen-evolving fermentation, which has allowed their adaptation to life under microaerophilic or anaerobic conditions. 

Acknowledgements I am grateful to Radhey S. Gupta and T. Martin Embley for helpful comments on the manuscript. Thanks are also due to the chief and staff of Joint Supercomputer Centre of the Russian Academy of Sciences (JSCC, Moscow) for providing the computer resources. 

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