| a thiococcus sp. nov. gen., its pigments and internal membrane system. | | 1967 | 5602476 |
| polyhydroxyalkanoate (pha) accumulation in sulfate-reducing bacteria and identification of a class iii pha synthase (phaec) in desulfococcus multivorans. | seven strains of sulfate-reducing bacteria (srb) were tested for the accumulation of polyhydroxyalkanoates (phas). during growth with benzoate desulfonema magnum accumulated large amounts of poly(3-hydroxybutyrate) [poly(3hb)]. desulfosarcina variabilis (during growth with benzoate), desulfobotulus sapovorans (during growth with caproate), and desulfobacterium autotrophicum (during growth with caproate) accumulated poly(3hb) that accounted for 20 to 43% of cell dry matter. desulfobotulus sapovor ... | 2004 | 15294771 |
| [cloning and molecular organization of the polyhydroxyalkanoic acid synthase gene (phac) of ralstonia eutropha strain b5786]. | class i polyhydroxyalkanoic acid (pha) synthase gene (phac) of ralstonia eutropha strain b5786 was cloned and characterized. r. eutropha b5786 features the ability to synthesize multicomponent phas with short- and medium-chain-length monomers from simple carbohydrate substrate. a correlation was made between the molecular structure of pha synthase and substrate specificity and the ability of strain-producers to accumulate phas of this or that structure. a strong similarity of pha synthase of r. ... | 2010 | 20391757 |
| heat-shock protein hspa mimics the function of phasins sensu stricto in recombinant strains of escherichia coli accumulating polythioesters or polyhydroxyalkanoates. | polyhydroxyalkanoic acids (phas) are synthesized by unspecific pha synthases and deposited as energy and carbon storage granules in the cytoplasm of many prokaryotes. the number and size of the granules depend on the presence of phasins which are amphiphilic structural proteins occurring at the granule surface. recently, it was shown that polythioesters (ptes) are also synthesized by pha synthases. to increase the yield of these polymers, the role of recombinant phasins was analysed in an artifi ... | 2007 | 17259608 |
| thioflavicoccus mobilis gen. nov., sp. nov., a novel purple sulfur bacterium with bacteriochlorophyll b. | a novel phototrophic purple sulfur bacterium was isolated from a flat, laminated microbial mat in a salt marsh near woods hole, massachusetts, usa. the cells were monotrichously flagellated motile cocci with internal photosynthetic membranes of the tubular type. the main photosynthetic pigments were bacteriochlorophyll b and the carotenoid 3,4,3',4'-tetrahydrospirilloxanthin. the marine bacterium showed optimal growth in the presence of 2% salts. it was obligately phototrophic and strictly anaer ... | 2001 | 11211246 |
| thioalkalicoccus limnaeus gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium with bacteriochlorophyll b. | four strains of purple sulfur bacteria containing bacteriochlorophyll b were isolated from cyanobacterial mats of soda lakes in the steppe of south-east siberia, russia. cells of all strains were cocci without gas vesicles. eventually, cells with flagella were seen in the electron microscope, but motile cells were observed very rarely in cultures. internal photosynthetic membranes were of the tubular type. photosynthetic pigments were bacteriochlorophyll b and carotenoids with spectral character ... | 2000 | 11155992 |
| phylogenetic relationships among the chromatiaceae, their taxonomic reclassification and description of the new genera allochromatium, halochromatium, isochromatium, marichromatium, thiococcus, thiohalocapsa and thermochromatium. | sequences of the 16s rdna from all available type strains of chromatium species have been determined and were compared to those of other chromatiaceae, a few selected ectothiorhodospiraceae and escherichia coli. the clear separation of ectothiorhodospiraceae and chromatiaceae is confirmed. most significantly the sequence comparison revealed a genetic divergence between chromatium species originated from freshwater sources and those of truly marine and halophilic nature. major phylogenetic branch ... | 1998 | 9828415 |