sp. nov., isolated from an Antarctic marine sponge.

A Gram-negative, aerobic, rod-shaped, non-motile bacterium, designated strain HQ09, was isolated from a marine sponge off the coast of Fields Peninsula, West Antarctica. Strain HQ09 grew at 4-35 °C (optimum, 25 °C), pH 5-9 (optimum, pH 7.0), and with 1-10% NaCl (optimum, 2 %).