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Encyclopedia > Rhodospirillales
Purple sulfur bacteria
Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Alpha Proteobacteria
Order: Rhodospirillales
Families

Rhodospirillaceae
Acetobacteraceae

The Rhodospirillales are an order of proteobacteria, with two families. The Acetobacteraceae comprise the acetic acid bacteria, which are heterotrophic and produce acetic acid during their respiration. The Rhodospirillaceae include mainly purple non-sulfur bacteria, which produce energy through photosynthesis.


  Results from FactBites:
 
BioMed Central | Full text | Signature proteins that are distinctive of alpha proteobacteria (6571 words)
The comparative analyses of genomes provides a valuable resource and a very powerful means for identifying characteristics that are unique to a particular group of species [6,16,27,28,32,35,36].
For example the protein CC1652 is absent in the Sphingomonadales while the protein CC1035 is absent in the Rhodospirillales.
Note that the protein CC2247 exhibits high E values for BLAST hits representing Brucellaceae and Bartonellaceae but this high E value is acceptable due to the very short length of this protein (46 amino acids) and the fact that besides α-proteobacteria no other BLAST hits were observed (Table 3B).
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