海洋赤潮生物与厦门海域几种细菌的生态关系研究

选择我国沿海易发有毒赤潮藻——塔马亚历山大藻 Alexandrium tamarense (Lebour) Balech,1 985 ]和从厦门海域筛选的海洋细菌作为实验材料 ,研究在实验生态条件下 A.tamarense的生理生态特征 ,及其与 3株从厦门海域筛选的海洋细菌 S5,S7,S10 与 A.tamarense共同培养表现的生态关系的差异性。结果表明 :在实验室条件下 ,A.tamarense可以较好地生长并保持自然状态下的若干特性 ,其生长曲线与微型生物的生长曲线相似 ;分别在藻细胞生长的延滞期和指数期加入细菌过滤液 ,发现 3种海洋细菌的过滤液对 A.tamarense生长有不同的抑制作用效果。三者的抑藻能力大小依次为 S10 >S5>S7。本文对海洋细菌抑藻作用机理、赤潮的生物防治可能性进行了讨论。

Study on the Ecological Relationship Between a Red-tide Causative Alga and Three Strains of Bacteria Isolated from Xiamen Harbor

The physiological and ecological properties of Alexandrium tamarense , a kind of red tide causative alga, and the ecological relationship between this alga and three strains of marine bacteria isolated from Xiamen western sea area were examined in the controlled ecological conditions. A. tamarense can growth well and keep some of its peculiarity when cultured under the laboratory conditions. Its growth curve is as same as that of the general microorganism. Bacteria are not found in the purely cultur...