Evolution of photosynthesis and aerobic respiration in the cyanobacteria
| Autor: | James Hemp, Philip Hugenholtz, Rochelle M. Soo |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Cyanobacteria biology Cellular respiration Microorganism Cell Respiration Carbon fixation biology.organism_classification Photosynthesis Biological Evolution Biochemistry Aerobiosis Phylum Cyanobacteria Oxygen 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Algae Physiology (medical) Botany 030217 neurology & neurosurgery |
| Zdroj: | Free Radical Biology and Medicine. 140:200-205 |
| ISSN: | 0891-5849 |
| DOI: | 10.1016/j.freeradbiomed.2019.03.029 |
| Popis: | For well over a hundred years, members of the bacterial phylum Cyanobacteria have been considered strictly photosynthetic microorganisms, reflected in their classification as "blue-green algae" in the botanical code. Recently, genomes recovered from environmental sequencing surveys representing two major uncultured basal lineages (classes) of Cyanobacteria have been found to completely lack photosynthetic and CO2 fixation genes. The most likely explanation for this finding is that oxygenic photosynthesis was not an ancestral feature of the Cyanobacteria, and rather originated following divergence of the primary lines of descent. Here we describe recent findings on the evolution of aerobic respiration in the non-photosynthetic cyanobacterial classes, and how this has been interpreted by researchers interested in the evolution of oxygenic photosynthesis. |
| Databáze: | OpenAIRE |
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