Parabacteroides absconsus sp. nov., isolated from feces of a child with atopic dermatitis.

An obligate anaerobic, Gram-negative rod-shaped bacterial strain designated AD58 was isolated from the feces of a 3-year-old boy with atopic dermatitis. The closest species is Parabacteroides fecalis with 96.98% 16S rRNA gene identity.

Comparison of Vaginal microbiota in HPV-negative and HPV-positive pregnant women using a culture-based approach.

The purpose of this study was to conduct a comparative analysis of the composition of the dominant groups of vaginal microorganisms in healthy pregnant women and pregnant women infected with HPV using a microbiological culture-based method. The MALDI TOF MS method and 16S rRNA gene fragment sequencing were used to identify microorganisms isolated from healthy pregnant women (n=32) and pregnant women infected with HPV (n=24). It was found that vaginal secretion samples from both groups contained bacteria of 4 phyla: Bacillota, Actinomycetota, Pseudomonadota, Bacteroidota, and Ascomycota fungi.

gen. nov., sp. nov. and sp. nov., two novel anaerobic fermentative members of isolated from human faeces.

Three novel strains of Gram-stain-negative, obligately anaerobic, spore-forming straight or slightly curved rods with pointed ends occurring singly or in pairs were isolated from the faeces of healthy human children. The strains were characterized by mesophilic fermentative metabolism and production of acetate, ethanol and H as the end metabolic products. Strains ASD3451 and ASD5720 were motile, fermented lactose and raffinose, and weakly fermented maltose.

Intraspecies Genomic Diversity and Long-Term Persistence of Bifidobacterium longum.

Members of genus Bifidobacterium are Gram-positive bacteria, representing a large part of the human infant microbiota and moderately common in adults. However, our knowledge about their diversity, intraspecific phylogeny and long-term persistence in humans is still limited. Bifidobacterium longum is generally considered to be the most common and prevalent species in the intestinal microbiota.

Genome sequence of the deep-sea gamma-proteobacterium Idiomarina loihiensis reveals amino acid fermentation as a source of carbon and energy.

We report the complete genome sequence of the deep-sea gamma-proteobacterium, Idiomarina loihiensis, isolated recently from a hydrothermal vent at 1,300-m depth on the Loihi submarine volcano, Hawaii. The I. loihiensis genome comprises a single chromosome of 2,839,318 base pairs, encoding 2,640 proteins, four rRNA operons, and 56 tRNA genes.