title: [Anoxygenic phototrophic bacteria of the high-altitude meromictic Lake Gek-Gel, Azerbaijan].
abstract: The anoxygenic phototrophic bacterial community of the high-altitude meromictic Lake Gek-Gel (Azerbaijan) was investigated in September 2003. The highest concentration of bacteriochlorophyll e (48 microg/l) was detected at a depth of 30 m; the peak of bacteriochlorophyll a (4.5 microg/l) occurred at 29 m. Phylogenetic analysis revealed that brown-colored green sulfur bacteria Chlorobium phaeobacteroides predominated in the lake. Nonsulfur purple bacteria phylogenetically close to Blastochloris sulfoviridis were found in insignificant amounts; these organisms have not been previously reported in Lake Gek-Gel.
authors.forename: O N
authors.initials: ON
authors.lastname: Lunina
authors.forename: M V
authors.initials: MV
authors.lastname: Kevbrina
authors.forename: V N
authors.initials: VN
authors.lastname: Akimov
authors.forename: N V
authors.initials: NV
authors.lastname: Pimenov
mesh_terms: D000693:Anaerobiosis; D001382:Azerbaijan; D041883:Chlorobium / Q000145:classification* / Q000302:isolation & purification / Q000378:metabolism / Q000648:ultrastructure; D015169:Colony Count, Microbial; D005618:Fresh Water / Q000382:microbiology*; D041921:Hyphomicrobiaceae / Q000145:classification* / Q000302:isolation & purification / Q000378:metabolism / Q000648:ultrastructure; D008854:Microscopy, Electron; D010788:Photosynthesis; D010802:Phylogeny