New insights into the metabolic potential of the phototrophic purple bacterium Rhodopila globiformis DSM 161T from its draft genome sequence and evidence for a vanadium-dependent nitrogenase

Imhoff, Johannes F., Rahn, Tanja, Künzel, Sven and Neulinger, Sven C. (2018) New insights into the metabolic potential of the phototrophic purple bacterium Rhodopila globiformis DSM 161T from its draft genome sequence and evidence for a vanadium-dependent nitrogenase Archives of Microbiology . DOI 10.1007/s00203-018-1489-z.

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Abstract

Rhodopila globiformis: is the most acidophilic anaerobic anoxygenic phototrophic purple bacterium and was isolated from a warm acidic sulfur spring in Yellowstone Park. Its genome is larger than genomes of other phototrophic purple bacteria, containing 7248 Mb with a G + C content of 67.1% and 6749 protein coding and 53 RNA genes. The genome revealed some previously unknown properties such as the presence of two sets of structural genes pufLMC for the photosynthetic reaction center genes and two types of nitrogenases (Mo-Fe and V-Fe nitrogenase), capabilities of autotrophic carbon dioxide fixation and denitrification using nitrite. Rhodopila globiformis assimilates sulfate and utilizes the C1 carbon substrates CO and methanol and a number of organic compounds, in particular, sugars and aromatic compounds. It is among the few purple bacteria containing a large number of pyrroloquinoline quinone-dependent dehydrogenases. It has extended capacities to resist stress by heavy metals, demonstrates different resistance mechanisms to antibiotics, and employs several toxin/antitoxin systems.

Document Type: Article
Keywords: Rhodopila globiformis;Genome sequence; Anoxygenic phototrophic purple bacteria; Vanadium nitrogenase; Calvin cycle; Photosynthesis gene cluster; Zn bacteriochlorophyll; Metal and antibiotic resistance; Metabolic properties
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-MI Marine Microbiology
Refereed: Yes
DOI etc.: 10.1007/s00203-018-1489-z
ISSN: 0302-8933
Date Deposited: 19 Feb 2018 12:40
Last Modified: 19 Feb 2018 12:40
URI: http://eprints.uni-kiel.de/id/eprint/41923

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