Abstract
The Porphyrobacter genus (of the class Alphaproteobacteria) contains aerobic anoxygenic phototrophic species. Here we report a draft genome sequence of a freshwater bacterium, Porphyrobacter sp. strain AAP82. It contains a 38-kb-long photosynthesis gene cluster, but carbon-fixation genes are absent. The presence of respiratory enzymes, tricarboxylic acid (TCA) cycle, and the Entner-Doudoroff pathway demonstrates its aerobic photoorganotrophic character.
Highlights
The Porphyrobacter genus contains aerobic anoxygenic phototrophic species
The Porphyrobacter genus belongs to the family Sphingomonadaceae of the Alphaproteobacteria and is one of few formally named exclusively Aerobic anoxygenic phototrophs (AAPs) genera
A number of species have been described from this genus [6,7,8,9,10,11], but their genome sequences are unavailable
Summary
The Porphyrobacter genus (of the class Alphaproteobacteria) contains aerobic anoxygenic phototrophic species. Aerobic anoxygenic phototrophs (AAPs) represent an important fraction of bacterioplankton in the oceans [1, 2] and in freshwater systems [3,4,5]. Contrasting with successful efforts to accumulate data on the ecology of AAPs, efforts toward AAP isolation and sequencing of their full genomes are still insufficient, limiting our understanding of their metabolic capabilities. The Porphyrobacter genus belongs to the family Sphingomonadaceae of the Alphaproteobacteria and is one of few formally named exclusively AAP genera.
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