褐藻酸降解菌在海带绿烂病发生中的作用  

The Roles Played by Alginic Acid Decomposing Bacteria During the Time of Green Decay Disease of Laminaria japonica

作　　者：王丽丽[1] 唐学玺[1] 王蒙[1] 张培玉[1] 

机构地区：[1]中国海洋大学海洋生命学院,青岛266003

出　　处：《青岛海洋大学学报（自然科学版）》2003年第2期245-248,共4页Journal of Ocean University of Qingdao

基　　金：国家"973"重点基础研究发展规划项目 (G19990 12 0 0 4 )资助

摘　　要：从海带幼苗上病烂明显处分离得到 2 3株褐藻酸降解菌 ,并对其菌落形态、细胞形态及革兰氏染色反应等进行了观察。通过对褐藻酸钠的降解实验 ,筛选出 4株具较高降解能力的菌株。感染实验表明 ,分离到的褐藻酸降解菌为海带幼苗病烂的主要病原菌。Twenty-three chains alginic acid decomposing bacteria were isolated from the rotten spots of Laminaria sporelings. The characteristics of the bacterial colonies and cells and the reactions to gram stain were observed. By the experiments of degrading sodium alginate, 4 chains with higher degrading abilities were screened out. The infection tests showed that the alginic acid decomposing bacteria isolated were the main pathogenic bacteria which caused the rot disease of Laminaria japonica.

关 键 词：海带 褐藻酸降解菌 病烂 病原菌 

分 类 号：S946[农业科学—水产养殖]