Ectothiorhodosinus mongolicum gen. nov., sp. nov., a New Purple Bacterium from a Soda Lake in Mongolia

@article{Gorlenko2004EctothiorhodosinusMG,
  title={Ectothiorhodosinus mongolicum gen. nov., sp. nov., a New Purple Bacterium from a Soda Lake in Mongolia},
  author={Vladimir Mikhaĭlovich Gorlenko and Irina A Bryantseva and E. E. Panteleeva and Tatyana P Tourova and Tatiana V. Kolganova and Zoya K. Makhneva and Andrey A Moskalenko},
  journal={Microbiology},
  year={2004},
  volume={73},
  pages={66-73}
}
A new nonmotile purple sulfur bacterium (strain M9) was isolated from the steppe soda lake Lake Dzun Uldziin Nur (pH 9.4; mineralization, 3.3%) situated in southeastern Mongolia. Individual cells appear as vibrios 0.3–0.5 × 0.7–1 μm in size. The dividing cells often do not separate from each other, forming an almost closed ring. The internal photosynthetic membranes are represented by concentric lamellae lining the cell wall. Photosynthetic pigments are bacteriochlorophyll a and carotenoids of… 

Rubribacterium polymorphum gen. nov., sp. nov., a novel alkaliphilic nonsulfur purple bacterium from an Eastern Siberian soda lake

An alkaliphilic nonsulfur purple bacterial strain “Green” was isolated from sediments of the littoral zone of the soda lake in the Barguzin River valley (Eastern Siberia) and analysis of 16S rRNA gene sequences revealed a 10% difference with the most closely related NPB (Rhodobacter species).

Ectothiorhodospira magna sp. nov., a new large alkaliphilic purple sulfur bacterium

The isolates differed from other representatives of the genus Ectothiorhodospira in the structure of the gene encoding the key enzyme of autotrophic CO2 fixation, ribulose-1,5-bisphosphate carboxylase (RuBisCo), which was similar to the RuBis co genes of members of another family of sulfur bacteria, Chromatiaceae.

Description of Ectothiorhodospira salini sp. nov.

Morphological and physiological characteristics discriminate strain JA430(T) from other species of the genus Ectothiorhodospira, for which this species is described as a novel species, ECTothiorodospira salini sp.

Anoxygenic phototrophic bacteria from extreme environments

Anoxygenic phototrophic bacteria have conquered various types of habitats of extreme conditions of temperature, pH and salinity. A short overview is given on the species found, on the properties of

Phylogeny and evolution of the family Ectothiorhodospiraceae based on comparison of 16S rRNA, cbbL and nifH gene sequences.

The data obtained may be regarded as evidence of the monophyletic origin of the cbbL and nifH genes in most species within the family Ectothiorhodospiraceae and mainly corresponded to the current taxonomic structure of this family.

Biochemistry and molecular biology of lithotrophic sulfur oxidation by taxonomically and ecologically diverse bacteria and archaea.

Phylogenetic and biomolecular fossil data suggest that the ubiquity of sox genes could be due to horizontal transfer, and coupled sulfate reduction/sulfide oxidation pathways, originating in planktonic ancestors of Chromatiaceae or Chlorobi, could be ancestral to all sulfur-lithotrophic processes.

Analysis of community composition of sulfur-oxidizing bacteria in hypersaline and soda lakes using soxB as a functional molecular marker.

The diversity of soxB gene encoding a key enzyme of the Sox pathway sulfate thiohydrolase has been investigated in pure cultures of various halophilic and haloalkaliphilic sulfur-oxidizing bacteria

Diversity of anaerobic anoxygenic phototrophic purple bacteria

The phylogenetic relationship of the cultured phototrophic purple bacteria based upon 16S rRNA gene sequences of the type strains is shown in a comprehensive phylogenetic tree and genes coding for bacteriochlorophyll synthesis (bchY), and reaction center proteins (pufL and pufM) have been applied for biodiversity studies of photosynthesis under anaerobic conditions.

Sulfur metabolism in phototrophic sulfur bacteria.

Free-Living and Symbiotic Bacterial Communities in Contrasting Hydrothermally Active Habitats

The results of this study suggest that Fe-rich hydrothermal sediments, while dominated by Fe oxidizers, can be exploited by a variety of autotrophic and heterotrophic microorganisms.

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