Photosynthesis Is Widely Distributed among Proteobacteria as Demonstrated by the Phylogeny of PufLM Reaction Center Proteins

Frontiers in Microbiology
Johannes F ImhoffSven C Neulinger

Abstract

Two different photosystems for performing bacteriochlorophyll-mediated photosynthetic energy conversion are employed in different bacterial phyla. Those bacteria employing a photosystem II type of photosynthetic apparatus include the phototrophic purple bacteria (Proteobacteria),GemmatimonasandChloroflexuswith their photosynthetic relatives. The proteins of the photosynthetic reaction center PufL and PufM are essential components and are common to all bacteria with a type-II photosynthetic apparatus, including the anaerobic as well as the aerobic phototrophic Proteobacteria. Therefore, PufL and PufM proteins and their genes are perfect tools to evaluate the phylogeny of the photosynthetic apparatus and to study the diversity of the bacteria employing this photosystem in nature. Almost completepufLMgene sequences and the derived protein sequences from 152 type strains and 45 additional strains of phototrophic Proteobacteria employing photosystem II were compared. The results give interesting and comprehensive insights into the phylogeny of the photosynthetic apparatus and clearly define Chromatiales, Rhodobacterales, Sphingomonadales as major groups distinct from other Alphaproteobacteria, from Betaproteobacteria and from Caulob...Continue Reading

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Citations

Dec 19, 2019·International Journal of Systematic and Evolutionary Microbiology·Dorji PhurbuYu-Guang Zhou
May 26, 2018·The ISME Journal·Henner BrinkmannJörn Petersen
Feb 13, 2020·Scientific Reports·Cara L FioreMichael P Lesser
May 1, 2021·Microorganisms·Karel KopejtkaMichal Koblížek
Jun 26, 2021·International Journal of Systematic and Evolutionary Microbiology·Ke-Lei ZhuZong-Jun Du

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Software Mentioned

R package phangorn
iTOL
TREE
MAFFT
PufLM
IQ

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