Isolation and characterization of a marine bacterium producing protease from Chukchi Sea, Arctic

摘要

A Gram negaive bacterium Ar/W/b/75°25'N/1 producing extracellular alkaline protease was isolated from surface water of latitude 75°25'N, and longitude 162°25'W in Chukchi sea, Arctic. The strain can growth at the temperature range form 7 deg. C to 30 deg. C, and grow better at 30 deg. C. It can not grow at 40 deg. C. Keeping certain salinity concentration in medium is necessary for cell growth. It grows well in medium containing salinity concentration from 0.5/100 to 10/100 sodium chloride.