| spatio-temporal distribution of phototrophic sulfur bacteria in the chemocline of meromictic lake cadagno (switzerland). | abstract in situ hybridization was used to study the spatio-temporal distribution of phototrophic sulfur bacteria in the permanent chemocline of meromictic lake cadagno, switzerland. at all four sampling times during the year the numerically most important phototrophic sulfur bacteria in the chemocline were small-celled purple sulfur bacteria of two yet uncultured populations designated d and f. other small-celled purple sulfur bacteria (amoebobacter purpureus and lamprocystis roseopersicina) we ... | 2003 | 19719699 |
| [physilogical and biochemical properties of bacteria of chromatium genus, isolated from water bodies enriched with hydrogen sulfide]. | pure cultures of purple sulfur bacteria, which were attributed to genus chromatium, were isolated from water bodies of the yavoriv sulfur deposit. both cultures perform anoxygenic photosynthesis and contain bacteriochlorophyll a and carotenoids of spirilloxanthin group. isolated bacteria grow photolithoauthotrophically, photolithoheterotrophically and photoorganoheterotrophically. hydrogen sulphide, sulfur and thiosulfate were used as inorganic electron donors. bacteria were resistant to high hy ... | 2009 | 20455432 |
| sodium dodecyl sulfate-polyacrylamide gel protein electrophoresis of freshwater photosynthetic sulfur bacteria. | sodium dodecyl sulfate-polyacrylamide gel protein electrophoresis (sds-page) was carried out using different bacterial strains of the photosynthetic sulfur bacteria chlorobium, thiocapsa, thiocystis, and chromatium cultured in the laboratory, and the natural blooms in two karstic lakes (lake cisó and lake vilar, ne spain) where planktonic photosynthetic bacteria (purple and green sulfur bacteria) massively developed accounting for most of the microbial biomass. several extraction, solubilization ... | 2011 | 20524118 |
| investigation of the redox interaction between mn-bicarbonate complexes and reaction centers from rhodobacter sphaeroides r-26, chromatium minutissimum, and chloroflexus aurantiacus. | the change in the dark reduction rate of photooxidized reaction centers (rc) of type ii from three anoxygenic bacteria (rhodobacter sphaeroides r-26, chromatium minutissimum, and chloroflexus aurantiacus) having different redox potentials of the p(+)/p pair and availability of rc for exogenous electron donors was investigated upon the addition of mn(2+) and hco(3)(-). it was found that the dark reduction of p(870)(+) from rb. sphaeroides r-26 is considerably accelerated upon the combined additio ... | 2011 | 22150281 |
| vertical distribution of archaea and bacteria in a meromictic lake as determined by fluorescent in situ hybridization. | the prokaryotic cells distribution in the water column of the coastal saline meromictic lake faro (messina, italy) was investigated by microscopic counting techniques. water samples were collected at a central station from the surface to the bottom, when waters were characterized by a marked stratification. a "red-water" layer, caused by a dense growth of photosynthetic sulfur bacteria, was present at a depth of 15 m, defining a transition area between oxic (mixolimnion) and anoxic (monimolimnio ... | 2012 | 22006072 |