Abstract
Only five bacterial phyla with members capable of chlorophyll (Chl)-based phototrophy are presently known. Metagenomic data from the phototrophic microbial mats of alkaline siliceous hot springs in Yellowstone National Park revealed the existence of a distinctive bacteriochlorophyll (BChl)-synthesizing, phototrophic bacterium. A highly enriched culture of this bacterium grew photoheterotrophically, synthesized BChls a and c under oxic conditions, and had chlorosomes and type 1 reaction centers. "Candidatus Chloracidobacterium thermophilum" is a BChl-producing member of the poorly characterized phylum Acidobacteria.
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Bacteria, Aerobic / classification*
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Bacteria, Aerobic / isolation & purification*
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Bacteria, Aerobic / physiology
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Bacteria, Aerobic / ultrastructure
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Bacterial Chromatophores / ultrastructure
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Bacteriochlorophylls / biosynthesis
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Computational Biology
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Ecosystem
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Genome, Bacterial
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Genomics
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Hot Springs / microbiology*
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Molecular Sequence Data
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Photosystem I Protein Complex / analysis
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Phototrophic Processes*
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RNA, Ribosomal, 16S / genetics
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Temperature
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Wyoming
Substances
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Bacteriochlorophylls
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Photosystem I Protein Complex
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RNA, Ribosomal, 16S
Associated data
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GENBANK/AAQU00000000
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GENBANK/CP000239
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GENBANK/CP000240