Study on the marine agarolytic bacterium-infusorium association

Physiological and biochemical properties of a marine agarolytic association of the bacterium Cytophaga diffluens and the infusorium Uronema marinum we re investigated. The agarase activity of the association was shown to be hi gher than that of the pure bacterial culture at all growth stages under ide ntical conditions. Maximum agarase activity of the association, and of the pure bacterial culture, was observed in a medium containing a small amount of organic nitrogen (0.1% yeast extract).