Stable-carbon-isotope composition of fatty acids in hydrothermal vent mussels containing methanotrophic and thiotrophic bacterial endosymbionts
Article Abstract:
A study was conducted to evaluate the presence of methanotrophic and thiotrophic bacterial endosymbionts in the tissues of a hydrothermal vent mussel. The method utilized was a fatty acid biomarker analysis compounded with gas chromatography-isotope ratio mass spectrometry. Results confirmed the presence of monounsaturated fatty acids in the gill, posterior adductor and mantle tissues. Stable-carbon-isotope compositions of fatty acids in the three tissues were from -24.9% to -34.9% which covers the range predicted for both thiotroph- and methanotroph-based nutrition.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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Effect of selected polysaccharide-producing soil bacteria on hyperhydricity control in oregano tissue cultures
Article Abstract:
Polysaccharide-producing soil rhizosphere bacteria, Pseudomonas mucidolens and another Pseudomonas sp. prevent hyperhydricity in soil and improve acclimation of oregano tissue cultures. Excess hydration along with poor lignification causes hyperhydricity and results in poor regeneration of plants. The oregano-bacterium interaction reveals the underlying mechanism of hyperhydricity. These bacterial strains better than other Pseudomonas strains for commercial applications.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
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Intraspecies variability of cellular fatty acids among soil and intestinal strains of Desulfovibrio desulfuricans
Article Abstract:
Soil and human intestinal strains of Desulfovibrio desulfuricans show differences in their cellular fatty acid profiles. The soil strains show heterogeneity in their individual fatty acid patterns despite the identical laboratory cultivation conditions, whereas the intestinal strains are more homogenous with almost identical patterns. The intestinal strains contain a higher ratio of saturated, as compared to unsaturated, fatty acids.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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