浅水湖泊沉积物脱氢酶活性的测定及其生态学意义

被引：30

作者：

黄代中 ^{[1
,2
]}

肖文娟 ^{[1
,2
]}

刘云兵 ^{[1
,2
]}

刘竟远 ^{[1
]}

周易勇 ^{[1
]}

机构：

[1] 中国科学院水生生物研究所

[2] 中国科学院研究生院

来源：

湖泊科学 | 2009年 / 21卷 / 03期

关键词：

沉积物; 脱氢酶; TTC; 微生物活性; 有机质; 湖泊;

D O I：

暂无

中图分类号：

P343.3 [湖泊、水库];

学科分类号：

070403 [天体物理学];

摘要：

以武汉市浅水湖泊(月湖)为实验对象确定了沉积物脱氢酶活性(DHA)测定的最佳条件:以经甲醛灭菌的沉积物为对照,以氯化三苯基四氮唑为电子受体(0.4%),沉积物用量为0.5g,pH值为7.5,培养时间为3h.据上述条件测定的DHA比未优化条件下的相应值高3-5倍,且表现出与沉积物有机质含量更为显著的正相关关系.武汉东湖3个子湖共23个采样点沉积物样品的测试结果进一步证实了上述方法的可行性,同时初步揭示了湖泊沉积物脱氢酶反映微生物活性与有机质状态的生态学意义.

引用

页码：345 / 350

页数：6

共 21 条

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