Aerobic Bacteria Containing Bacteriochlorophyll and Belonging to the Alphaproteobacteria

Properties of specific prokaryotic groups
Physiological groups
Johannes F. Imhoff

Johannes F. Imhoff

Universität Kiel, Institut für Meereskunde, Abt. Marine Mikrobiologie, Düsternbrooker Weg 20, Kiel, D-24105 Germany

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Akira Hiraishi

Akira Hiraishi

Toyohashi University of Technology, Department of Ecological Engineering, Tempaku-cho, Toyohashi, 441-8580 Japan

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First published: 14 September 2015
Citations: 1
Published by John Wiley & Sons, Inc., in association with Bergey's Manual Trust.

Abstract

In this chapter, the group containing the obligately aerobic chemoheterotrophic bacteria with bacteriochlorophyll (BChl) a and carotenoids, having a photosynthetic apparatus in which the BChl is integrated, and developing internal membrane systems as seen in the anoxygenic phototrophic purple bacteria is studied. The BChl content in this group is significantly lower than in the phototrophic purple nonsulfur bacteria. The aerobic bacteriochlorophyll-containing bacteria (“ABC bacteria”) are strictly dependent on energy generation by respiratory electron transport processes with O2 or alternative electron acceptors (Roseobacter denitrificans). The mol% G + C content of the DNA ranges from 57 to 60 (Td) in Erythrobacter species to 74.0–74.8 (Td) in Rubrimonas species.

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