A psychrotolerant extracellular phosphatase from Krossfjorden sediment bacterium Bacillus cereus KR_O9: purification and functional characterization.

This study reports the identification of a phosphatase-producing psychrotolerant bacterium, Bacillus cereus KR_O9, isolated from Arctic Krossfjorden sediments. The extracellular KR_O9 phosphatase was purified to homogeneity through acetone precipitation and ion exchange chromatography, achieving a specific activity of 12.51 U mg⁻ min⁻, a 17.

Potential radiosensitive germline biomarkers in the testes of wild mice after the Fukushima accident.

We investigated potential germline-specific radiosensitive biomarkers in the testes of large Japanese field mice (Apodemus speciosus) exposed to low-dose-rate (LDR) radiation after the Fukushima accident. Fukushima wild mice testes were analysed via RNA-sequencing to identify genes differentially expressed in the breeding and non-breeding seasons when compared to controls. Results revealed significant changes during the breeding season, with Lsp1 showing a considerable upregulation, while Ptprk and Tspear exhibited significant reductions.

sp. nov., isolated from Vestrebroggerbreen, a valley glacier in Svalbard, Arctic.

A Gram-stain-negative, rod-shaped bacterial strain designated as 20VBR1 was isolated from a valley glacier (Vestrebroggerbreen) snout ice sample from Ny-Ålesund, Svalbard, Arctic. The colonies were smooth, circular and light creamish on half-strength R2A agar and grew at 10-35 °C (optimum, 20 °C), at pH 6.5-8.

Biodegradation of petroleum based and bio-based plastics: approaches to increase the rate of biodegradation.

Plastic production and consumption are on the rise due to their variety of uses. Plastics often accumulate in the environment and pose a risk due to the lack of a viable strategy for their safe disposal. Even prohibiting plastic covers does not solve the problems of plastic waste generation.

Impact of anthropogenic organic matter on bacterial community distribution in the continental shelf sediments of southeastern Arabian Sea.

The objective of this study was to understand the influence of anthropogenic organic matter on the spatial distribution microbial community in the continental shelf sediments of the Southeastern Arabian Sea (SEAS). The sediment samples were taken from the inner shelf (30 m depths) and outer shelf (100-200 m). The C:N ratio of the sediment displayed a significant variation between the inner and outer shelf and a higher terrestrial organic input in the inner shelf.