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Biological sciences

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Molecular analysis of the composition of the bifidobacterial and lactobacillus microflora of humans

Article Abstract:

Bifidobacteria count is more stable as compared to lactobacillus count in the fecal samples of two humans studied over a period of one year. The presence of five bifidobacteria strains is seen throughout the study period, of which one strain is predominant. The second subject harbors five to six bifidobacterial strains, the composition of which varies throughout the study period. However, one lactobacillus strain is numerically dominant in both the humans for the complete study period.

Human beings, Lactobacillus, Composition, Humans, Bifidobacterium

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Molecular rearrangement of longifolene by Arthrobacter ilicis T2

Article Abstract:

The isolation, identification and characterization of the acid product of longifolene by Arthrobacter ilicis T2 were described. The results of infrared, nuclear magnetic resonance, mass spectrometry and decoupling studies indicate that longifolene is cometabolized to sativic acid, which has a sativene structure. This was confirmed by conversion of the acid to its methyl ester. A mechanism for its formation from longifolene was proposed.

Analysis, Terpenes, Rearrangements (Chemistry)

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Variable-number tandem repeats as molecular markets for biotypes of Pasteuria ramosa in Daphnia spp

Article Abstract:

The study signifies the presence of variable-number tandem repeats (VNTRs) in the populations of Pasteuria ramosa, a castracting endobacterium of Daphnia species. The analysis reveals that VNTRs may act as the biomakers for the genetic characterization of these Pasteuria ramosa isolates.

Physiological aspects, Genetic aspects, Daphnia

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