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不同 pH和盐度下海洋细菌对赤潮藻生长和产毒的影响
Authors
俞志明
宋秀贤
+4 more
徐金森
胡忠
苏建强
郑天凌
Publication date
30 July 2003
Publisher
Abstract
研究了在可控生态条件下 ,一株分离自厦门西海域沉积物的海洋细菌S10 在不同pH和盐度条件下对赤潮原因种塔玛亚历山大藻 (Alexandriumtamarense)生长和产毒的影响 .结果表明 ,实验用藻株适宜生长 pH为 6~ 8,适宜盐度为 2 0~ 34;该藻株在不同pH及不同盐度条件下 ,藻细胞毒力差异显著 ,且随着pH升高而下降 ,随着盐度增加而加大 ,到盐度为 30时达到最高值 ,然后逐渐下降 ;菌株S10 (1.0 2× 10 10cells·ml-1)在pH 7~ 9和盐度 15~ 34下均能有效抑藻生长和产毒 ,且在 pH 7、盐度 34时其抑藻生长作用最强 ;在 pH 7时抑藻产毒效果较好 ,且其抑藻产毒作用强度不随盐度变化而异
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Last time updated on 16/06/2016