Novel chemoautotrophic endosymbiosis between a member of the Epsilonproteobacteria
and the hydrothermal-vent gastropod Alviniconcha aff.
In total, six well-recognized classes (Gammaproteobacteria, Alphaproteobacteria, Betaproteobacteria, Deltaproteobacteria, Epsilonproteobacteria
, and Zetaproteobacteria) were observed, among which Gammaproteobacteria (31.70-42.23%) in the R-samples and Alphaproteobacteria (22.13-25.40%) in the S-samples were the top two most abundant classes.
These groups include the Alphaproteobacteria (B9G69_00040, DUF4334 domain-containing and B9G69_ 13200, AraC family transcriptional regulator), Betaproteobacteria (B9G69_13210, Com family DNA-binding transcriptional regulator and B9G69_11675, FAD: FMN transferase), Gammaproteobacteria (B9G69_13180, glyoxalase bleomycin resistance dioxygenase; B9G69_13235, terminase small subunit; B9G69_13225, AlpA family transcriptional regulator; and B9G69_13230, bacteriophage), Epsilonproteobacteria
(B9G69_11670, nuclease), Bacteroidetes (B9G69_18290, molybdopterin-binding oxidoreductase), and Cyanobacteria (B9G69_17905, HAMP domain-containing and B9G69_ 00045, 3 and saliva-related transmembrane).
Gammaproteobacteria and Acidobacteria dominated the predominant groups in Wind Cave in the USA, while Gammaproteobacteria and Epsilonproteobacteria
dominated in the sulfidic cave biofilm (31,32).
Kuever et al., "The Family Syntrophobacteraceae," in The Prokaryotes: Deltaproteobacteria and Epsilonproteobacteria
The Proteobacteria were composed of Gammaproteobacteria (19%) (predominantly Enterobacteriaceae (10%)), Epsilonproteobacteria
(2%) (with Campylobacteraceae (1%)), Deltaproteobacteria (1%) (with Desulfovibrionaceae (0.4%)), and Alphaproteobacteria (0.9%) (with Rhizobiales (0.4%)) (Figure 1(c)).
As can be seen in Table 4 and Figure 5, 13 distinct DGGE bands revealed that microbial species were affiliated with 8 phyla or classes domain Bacteria: Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Flavobacteria, Actinobacteria, Sphingobacteria, Epsilonproteobacteria
McNichol is specifically interested in a class of microbes called Epsilonproteobacteria
, that dominates the vents.
Within Proteobacteria, the gut digesta (61-70%), egested fecal pellets (52-87%), and tank water (36%) were dominated by class Gammaproteobacteria; the pharynx tissue (31-45%) and feed (24%) by class Alphaproteobacteria; and the gut tissue by Epsilonproteobacteria
The classes Epsilonproteobacteria
and Zetaproteobacteria were extremely rare, represented by 43 and 1 sequences, respectively, indicating a low recovery rate in most of wetlands.
in humans, New Zealand [letter].