Human and bioreactor microbiome, July 18

An upcoming radio show on the human microbiome that looks interesting, dental calculus from prehistoric skeletons (without bacterial analysis unfortunately), and animals models of microbiome research.

General microbiome

City Visions: Exploring the Human Microbiome – KALW public radio – Monday July 21 at 7 pm at 91.7 FM in San Francisco

“Join host David Onek as we explore these questions and more with Bay Area researchers who are leading the new field of microbiome exploration and discovery.”

Oral microbiome

Dental Calculus Reveals Unique Insights into Food Items, Cooking and Plant Processing in Prehistoric Central Sudan – Stephen Buckley – PLOS ONE

“Here we present a suite of results from the multi-period Central Sudanese site of Al Khiday. We demonstrate the ingestion in both pre-agricultural and agricultural periods of Cyperus rotundus tubers. “

Animal models of gut microbiota and disease

Gut Microbial Metabolism Drives Transformation of Msh2-Deficient Colon Epithelial Cells – Antoaneta Belcheva – Cell

“We report that altering the microbiota composition reduces CRC in APCMin/+MSH2−/− mice, and that a diet reduced in carbohydrates phenocopies this effect. “

Exposure to a social stressor disrupts the community structure of the colonic mucosa-associated microbiota – Jeffrey D Galley – BMC Microbiology

“..we used high throughput pyrosequencing to assess the effects of a single 2-hour exposure to a social stressor, called social disruption (SDR), on colonic mucosa-associated microbial profiles of C57BL/6 mice.”

Bioreactor microbiome

Ethyl tert-Butyl Ether (ETBE)-degrading microbial communities in enrichments from polluted environments – Yoann Le Digabel – Journal of Hazardous Materials

“Clone libraries of the 16S rRNA gene were prepared from each enrichment. The analyses of the DNA sequences obtained showed different taxonomic compositions with a majority of Proteobacteria in three cases.”

Microbial community structure of wastewater treatment subjected to high mortality rate due to ozonation of return activated sludge – S. Isazadeh – Journal of Applied Microbiology

“The bacterial community structures were investigated by 16S rRNA gene amplicon high-throughput pyrosequencing and fluorescence in situ hybridization (FISH). The structures remained highly similar throughout the experiment despite the ozone treatment.”

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