Woese C R
J Mol Evol. 1977 Nov 25;10(2):93-6. doi: 10.1007/BF01751802.
The possibility is put forth that the mitochondrion did not originate from an endosymbiosis, 1-2 billion years ago, involving an aerobic bacterium. Rather, it arose by endosymbiosis in a much early, anaerobic period, and was initially a photosynthetic organelle, analogous to the modern chloroplast. This suggestion arises from a reconsideration of the nature of endosymbiosis. It explains the remarkable diversity in mitochondrial information storage and processing systems.
有人提出一种可能性，即线粒体并非起源于10亿至20亿年前涉及需氧细菌的内共生现象。相反，它是在更早的厌氧时期通过内共生产生的，最初是一种类似于现代叶绿体的光合细胞器。这一观点源于对内共生本质的重新思考。它解释了线粒体信息存储和处理系统中显著的多样性。
