Regeneration of phosphorus and nitrogen by four species of heterotrophic nanoflagellates feeding on three nutritional states of a single bacterial strain

Article Abstract:

A comparative study of four nanoflagellate species for their ability to remineralize bacterium-bound phosphorus and nitrogen reveals that all species exhibit equal ability to regenerate nitrogen. Phosphorus regeneration is faster in two faster-growing species than that in two slower-growing species. A combination of internal C/P ratios and life cycle strategies accounts for the differences in the rate of phosphorus regeneration.

Analysis, Flagella (Microbiology), Flagella, Biomineralization

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Isolation and characterization of strain MMB-1 (CECT 4803), a novel melanogenic marine bacterium

Article Abstract:

Microbiological research has identified a new strain of marine melanogenic bacterium, designated strain MMB-1, which comes from the genus Alteromonas. The organism uses L-tyrosine as a specific monophenolic precursor for melanin synthesis and contains two polyphenol oxidases, including a tyrosinase-like latent enzyme. It respires aerobically and uses sodium in growth processes. It is cytochrome c oxidase negative.

Mediterranean Sea, Natural history, Marine microbiology

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