Marine heterotrophic prokaryotes (HP) play a key role in organic matter processing the ocean; however, view of HP as dissolved (DOM) sources remains underexplored. In this study, we quantified and optically characterized DOM produced by two single marine bacterial strains. We then tested availability these to situ Mediterranean Sea communities. Two strains were used: Photobacterium angustum (a ...

This paper develops a model to understand the mechanism that might explain how land rights security may facilitate labor specialization. The theoretical framework suggests that with secured land rights, households with high farming ability are likely to invest in land while households with low farming ability tend to investment in human capital and migrate. Land security is identified as whethe...

Methanotrophs are a biological resource as they degrade the greenhouse gas methane and various organic contaminants. Several non-methanotrophic bacteria have shown potential to stimulate growth of methanotrophs when co-cultured, and however, the ecology is largely unknown. Effects of Sphingopyxis sp. NM1 on methanotrophic activity and growth of Methylocystis sp. M6 were investigated in this stu...

Researchers have used genomic sequence comparisons to predict an ocean bacterium’s trophic strategies, which may provide a technique to analyze the diversity of ocean bacteria, many of which are difficult to culture in the lab. Federico Lauro et al. compared the genomes of two common ocean bacteria: the copiotrophic Photobacterium angustum, which lives in warm, nutrient-rich waters and is fast ...

Three strains of bacteria that degrade the cyanobacterial hepatotoxin microcystin, Y2T, MDB2 and MDB3, were isolated from a eutrophic lake, Lake Suwa, and the Tenryu River, Japan, and characterized. These strains were aerobic and chemo-organotrophic and their cells were Gram-negative, non-spore-forming rods, motile by means of single polar flagella. Yellow-pigmented colonies were formed on nutr...