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海洋细菌对赤潮藻生长及其产毒量的影响
Authors
俞志明
宋秀贤
苏建强
郑天凌
Publication date
30 January 2003
Publisher
Abstract
采用麻痹性贝类毒素小白鼠生物测定法 ,研究了在可控生态条件下两株海洋细菌S1 0 、P42 对塔玛亚历山大藻生长及其产毒量的影响。结果表明 ,菌株S1 0 在较高浓度下对藻细胞的生长有明显的抑制作用 ,在较低浓度下抑藻生长作用较弱 ,不同浓度的菌株S1 0 均能有效地抑制藻细胞内麻痹性贝类毒素的产生 ,且在较低浓度下效果较好 ;菌株P42 对该藻的作用恰好与S1 0 相反 ,在较低浓度下明显抑制藻细胞的生长 ,不同浓度的菌株P42 也能有效地抑藻产毒 ,且在较高浓度下作用较明显。实验用的藻株毒力约为 ( 0 .95— 1 2 .1 4)× 1 0 - 6MU/cell,属于低毒藻株 ,该藻株在培养第 1 4天达到毒性最高峰 ,峰值为 1 2 .1 4× 1 0 - 6MU/cell,之后逐渐下降。讨论了海洋细菌在赤潮生物防治中的应用前
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Last time updated on 16/06/2016