endosymbiont theory


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endosymbiont theory

[‚en·dō′sim·bē‚änt ‚thē·ə·rē]
(cell and molecular biology)
A theory that the mitochondria of eukaryotes and the chloroplasts of green plants and flagellates originated as free-living prokaryotes that invaded primitive eukaryotic cells and become established as permanent symbionts in the cytoplasm.
References in periodicals archive ?
Not everyone is enthusiastic about the endosymbiont theory.
Batten concludes his critique of the endosymbiont theory by insisting that
The endosymbiont theory has in fact been considered extensively in the context of intragenomic conflict, that is, in terms of the evolutionary dynamics of mitochondria and their hosts in a more or less modern form (e.
I elaborate on this theme of intercellular interactions, and in doing so, I characterize the implications of the endosymbiont theory in the context of the cellular mechanics of modern eukaryotes.