Publications

a morphological study of anaerobic bacteria from the hypolimnia of two michigan lakes.	dense populations of anaerobic bacteria were found sequentially layered below the thermocline in two eutrophic lakes in southwest michigan. phase and electron microscopy of whole cells and thin sections were used to reveal the in situ morphology of the dominant members of the community. the predominant chlorophyll-containing bacteria were identified on the basis of their morphology to be members of the genera pelodictyon, prosthecochloris, clathrochloris, chlorochromatium, pelochromatium, thiope ...	1975	1090350
the structure of anaerobic bacterial communities in the hypolimnia of several michigan lakes.	the structure of bacterial communities, the distribution of sulfide and oxygen, bacteriochlorophyll concentrations, and the temperature profile were determined for the anaerobic hypolimnia of two lakes in southern michigan. information from these studies, plus qualitative observations of two other lakes and two ponds over a 4-year period were used to correlate the spatial distribution of the populations, cell size, arrangement of photosynthetic vesicles or lamellae, presence of gas vacuoles or ...	1975	1090351
[comparative study of the ultrastructure of vibrioid green sulfur bacteria].	the fine structure of the cells was investigated on the ultrathin sections of green sulphur bacteria, two strains of chlorobium vibrioforme, two strains of pelodictyon luteolum, and one strain of pelodictyon phaeum. all strains possess similar photosynthetic structures --"chlorobium-vesicules" underlying the cytoplasmic membrane. irregularly localized, gaseous vesicules of the rhombic shape were discerned in the cytoplasm of p. luteolum and p. phaeum. the vesicules were surrounded by a unilayer ...	1975	1160624
the amino acid sequence of a major protein component in the light harvesting complex of the green photosynthetic bacterium chlorobium limicola f. thiosulfatophilum.	a 7.5-kda protein has been isolated from chlorosomes of chlorobium limicola f. thiosulfatophilum and the complete primary structure determined by a combination of automatic edman degradation and plasma desorption mass spectrometry. the 74-residue protein shows great homology to a similar protein of unknown function which has been isolated from pelodictyon luteolum but otherwise no significant homology to other proteins can be found. the possible role of the protein in the structure and function ...	1991	2015294
the primary structure of the presumable bchl d-binding polypeptide of chlorobium vibrioforme f. thiosulfatophilum.	in addition to the previous isolated and sequenced polypeptides from green photosynthetic sulfur bacteria, which are presumably involved in binding bchl c and e, an analogous polypeptide has been purified from the bchl d-containing bacterium chlorobium vibrioforme f. thiosulfatophilum. the primary structure of this 6.15 kda polypeptide was determined. it shows an extremely high homology (98.3%) to the corresponding polypeptide from pelodictyon luteolum, indicative of an important functional role ...	1990	2282115
comparative study of the structure of gas vacuoles.	the fine structure of gas vacuoles was examined in two blue-green algae, two green bacteria, three purple sulfur bacteria, and two halobacteria. the gas vacuole is a compound organelle, composed of a variable number of gas vesicles. these are closed, cylindrical, gas-containing structures with conical ends, about 80 to 100 nm in width and of variable length, ranging from 0.2 to over 1.0 mum. the wall of the gas vesicle is a non-unit membrane 2 to 3 nm in thickness, bearing very regular striation ...	1969	4982667
[phototrophic brown sulfur bacteria pelodictyon phaeum nov. sp].		1972	5043517
some properties of the green bacterium pelodictyon clathratiforme.		1967	5602461
[microbiologic processes in meromictic lake sakovo].	the freshwater meromictic lake sakovo located in the vologda region was investigated. its maximal depth is 16 m. the lake contained very high sulfate concentrations up to 816 mg/l; however, the rate of sulfate reduction in the water was low (not more than 16 mg h2s/l/day, whereas 4.5 mg of h2s was produced per day in the sediments. bacterial sulfate reduction was shown to be limited by the deficiency of an organic substrate. not more than 11 mg of h2s/l was contained in the nonmixing layers of t ...	1981	6783819
chlorobium ferrooxidans sp. nov., a phototrophic green sulfur bacterium that oxidizes ferrous iron in coculture with a "geospirillum" sp. strain.	a green phototrophic bacterium was enriched with ferrous iron as sole electron donor and was isolated in defined coculture with a spirilloid chemoheterotrophic bacterium. the coculture oxidized ferrous iron to ferric iron with stoichiometric formation of cell mass from carbon dioxide. sulfide, thiosulfate, or elemental sulfur was not used as electron donor in the light. hydrogen or acetate in the presence of ferrous iron increased the cell yield of the phototrophic partner, and hydrogen could al ...	1999	10415173
förster energy transfer in chlorosomes of green photosynthetic bacteria.	energy transfer properties of whole cells and chlorosome antenna complexes isolated from the green sulfur bacteria chlorobium limicola (containing bacteriochlorophyll c), chlorobium vibrioforme (containing bacteriochlorophyll d) and pelodictyon phaeoclathratiforme (containing bacteriochlorophyll e) were measured. the spectral overlap of the major chlorosome pigment (bacteriochlorophyll c, d or, e) with the bacteriochlorophyll a b795 chlorosome baseplate pigment is greatest for bacteriochlorophy ...	1992	11536509
phylogenetic taxonomy of the family chlorobiaceae on the basis of 16s rrna and fmo (fenna-matthews-olson protein) gene sequences.	a new taxonomy of the green sulfur bacteria is proposed, based on phylogenetic relationships determined using the sequences of the independent 16s rrna and fmo (fenna-matthews-olson protein) genes, and supported by the dna g + c content and sequence signatures. comparison of the traditional classification system for these bacteria with their phylogenetic relationship yielded a confusing picture, because properties used for classification (such as cell morphology, photosynthetic pigments and subs ...	2003	12892110
analysis of dissimilatory sulfite reductase and 16s rrna gene fragments from deep-sea hydrothermal sites of the suiyo seamount, izu-bonin arc, western pacific.	this study describes the occurrence of unique dissimilatory sulfite reductase (dsr) genes at a depth of 1,380 m from the deep-sea hydrothermal vent field at the suiyo seamount, izu-bonin arc, western pacific, japan. the dsr genes were obtained from microbes that grew in a catheter-type in situ growth chamber deployed for 3 days on a vent and from the effluent water of drilled holes at 5 degrees c and natural vent fluids at 7 degrees c. dsr clones suiyodsr-a and suiyodsr-b were not closely relate ...	2004	14711668
[pigments of green sulfur bacteria isolated from reservoirs of iavoriv sulfur deposit].	the enormous amount of hydrogen sulfide (up to 11 mg/ml) is present in the yavoriv sulfur deposit reservoirs owing to sulfur reductive bacteria activity. as a consequence the ecological situation is badly affected and requires recovering. the biological h2s decomposition by photosynthetic sulfur bacteria, which use the hydrogen sulfide as electron donor during photosynthesis, can be one of the possible ways of this toxic substance destruction. the qualitative and quantitative analysis of photosy ...	2004	15104050
[microbiological and isotopic-geochemical investigations of meromictic lakes in khakasia in winter].	microbiological and isotopic-geochemical investigations of the brackish meromictic lakes shira and shunet were performed in the steppe region of khakasia in winter. measurements made with a submersed sensor demonstrated that one-meter ice transmits light in a quantity sufficient for oxygenic and anoxygenic photosynthesis. as in the summer season, in the community of phototrophic bacteria found in lake shira, the purple sulfur bacteria amoebobacter purpureus dominated, whereas, in lake shunet, th ...	2005	16211861
[seasonal changes in the structure of the anoxygenic phototrophic bacterial community in lake mogilnoe, a relict lake on kil'din island in the barents sea].	an anaerobic phototrophic bacterial community in lake mogilnoe, a relict lake on kil'din island in the barents sea, was studied in june 1999 and september 2001. irrespective of the season, the upper layer of the anaerobic zone of this lake had a specific species composition of sulfur phototrophic bacteria, which were dominated by the brown-colored green sulfur bacterium chlorobium phaeovibrioides. the maximum number of phototrophic sulfur bacteria was observed in june 1999 at a depth of 9 m, whi ...	2005	16315987
phylogeny and molecular signatures (conserved proteins and indels) that are specific for the bacteroidetes and chlorobi species.	the bacteroidetes and chlorobi species constitute two main groups of the bacteria that are closely related in phylogenetic trees. the bacteroidetes species are widely distributed and include many important periodontal pathogens. in contrast, all chlorobi are anoxygenic obligate photoautotrophs. very few (or no) biochemical or molecular characteristics are known that are distinctive characteristics of these bacteria, or are commonly shared by them.	2007	17488508
the three-dimensional structure of the fmo protein from pelodictyon phaeum and the implications for energy transfer.	the fenna-matthews-olson (fmo) antenna protein from the green bacterium pelodictyon phaeum mediates the transfer of energy from the peripheral chlorosome antenna complex to the membrane-bound reaction center. the three-dimensional structure of this protein has been solved using protein crystallography to a resolution limit of 2.0 å, with r(work) and r(free) values of 16.6 and 19.9%, respectively. the structure is a trimer of three identical subunits related by a threefold symmetry axis. each sub ...	2010	21181557