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Prokaryotic photosynthesis and phototrophy illuminated

机译:原核生物的光合作用和光化

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Genome sequencing projects are revealing new information about the distribution and evolution of photosynthesis and phototrophy. Although coverage of the five phyla containing photosynthetic prokaryotes (Chlorobi, Chloroflexi, Cyanobacteria, Proteobacteria and Firmicutes) is limited and uneven, genome sequences are (or soon will be) available for >100 strains from these phyla. Present knowledge of photosynthesis is almost exclusively based on data derived from cultivated species but metagenomic studies can reveal new organisms with novel combinations of photosynthetic and phototrophic components that have not yet been described. Metagenomics has already shown how the relatively simple phototrophy based upon rhodopsins has spread laterally throughout Archaea, Bacteria and eukaryotes. In this review, we present examples that reflect recent advances in phototroph biology as a result of insights from genome and metagenome sequencing.
机译:基因组测序项目正在揭示有关光合作用和光养作用的分布和进化的新信息。尽管包含光合原核生物的五个门(Chlorobi,Chloroflexi,蓝细菌,Proteobacteria和Firmicutes)的覆盖范围有限且参差不齐,但这些门中的100多个菌株可获得(或即将提供)基因组序列。当前的光合作用知识几乎完全基于来自栽培物种的数据,但是宏基因组学研究可以揭示具有尚未描述的光合作用和光养成分的新型组合的新生物。元基因组学已经表明,基于视紫红质的相对简单的光养作用是如何在古细菌,细菌和真核生物中横向传播的。在这篇综述中,我们提供了一些实例,这些实例反映了由于基因组和元基因组测序的见解而导致的光养生物学的最新进展。

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