Characterization of an autotrophic sulfide-oxidizing marine Arcobacter sp. that produces filamentous sulfur.

ABSTRACT: A coastal marine sulfide-oxidizing autotrophic bacterium produces hydrophilic filamentous sulfur as a novel metabolic end product. Phylogenetic analysis placed the organism in the genus Arcobacter in the epsilon subdivision of the Proteobacteria. This motile vibrioid organism can be considered difficult to grow, preferring to grow under microaerophilic conditions in flowing systems in which a sulfide-oxygen gradient has been established. Purified cell cultures were maintained by using this approach. Essentially all 4',6-diamidino-2-phenylindole dihydrochloride-stained cells in a flowing reactor system hybridized with Arcobacter-specific probes as well as with a probe specific for the sequence obtained from reactor-grown cells. The proposed provisional name for the coastal isolate is "Candi

SUBMITTER: Wirsen CO 

PROVIDER: S-EPMC126556 | biostudies-literature | 2002 Jan

REPOSITORIES: biostudies-literature