Characteristics of a Marine Agarolytic Pseudomonas sp. from Porphyra dentata(Bangiales, Rhodophyta) and Some Properties of its Extracellular Agarase

김(Porphyra dentata) 병반조직에서 분리한 해양미생물의 특성과 생산된 체외 한천분해효소 특성

The marine bacterium isolated from Porphyra dentata showing green spot rot disease was identified as Pseudomonas sp. the strain have CNCase activity, xylanase activity and protease activity as well as agarase activity. But the strain has no pectate lyase activity. Porphyra dentata tissue inoculated this isolate was macerated after 1 week incubation. The characteristics of extracellular crude agarase of this isolate were examined, the optimal pH and temperature were pH7 and 3$0^{\circ}C$, respectively.