Circulating bacterial signature is linked to metabolic disease and shifts with metabolic alleviation after bariatric surgery.

Background: The microbiome has emerged as an environmental factor contributing to obesity and type 2 diabetes (T2D). Increasing evidence suggests links between circulating bacterial components (i.e.

Anaerobic oxidation of ethane by archaea from a marine hydrocarbon seep.

Ethane is the second most abundant component of natural gas in addition to methane, and-similar to methane-is chemically unreactive. The biological consumption of ethane under anoxic conditions was suggested by geochemical profiles at marine hydrocarbon seeps, and through ethane-dependent sulfate reduction in slurries. Nevertheless, the microorganisms and reactions that catalyse this process have to date remained unknown.

Have an Ion on It: The Life-Cycle of Bdellovibrio bacteriovorus Viewed by Helium-Ion Microscopy.

Helium-ion microscopy (HIM) has so far rarely been employed to image microbial interactions. Here, the visualization of the life-cycle of the bacterial predator Bdellovibrio bacteriovorus HD100 with Escherichia coli and Pseudomonas putida, respectively, as prey is presented. The predator is brought in contact with prey and samples are taken at selected times.