Bacterial diversity associated with freshwater zooplankton
Bacterial diversity associated with freshwater zooplankton
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DOI：
10.1111/j.1758-2229.2008.00003.x
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发表时间：
2009-02-01
影响因子：
3.3
通讯作者：
Tang, Kam W.
中科院分区：
文献类型：
--
作者：
Grossart, Hans-Peter;Dziallas, Claudia;Tang, Kam W.
利用分子生物学技术比较了贫营养的Stechlin湖和富营养的Dagow湖（德国东北部）中与枝孢菌Bosmina coregoni和剑水蚤桡足类Thermocyclops oithonoides相关的细菌群落组成。我们还将浮游动物从它们的原生湖泊移植到另一个湖泊，并研究了由于周围环境的改变而导致的相关BCC的变化。与B相关的细菌群落组成。coregoni在贫营养湖泊和富营养湖泊之间相当保守，大多数细菌属于α-和β-变形菌。BCC与T. oithonoides是高度可变的，并依赖于环境，和Betaproteobacteria和拟杆菌是最具代表性的细菌。贫营养湖泊中的嗜热剑水蚤移植到富营养湖泊后，其体内的细菌比富营养湖泊中的嗜热剑水蚤更容易保留。这表明贫营养水体中的细菌比富营养水体中的细菌更牢固地附着在桡足类上，更能抵抗环境波动。
Bacterial community compositions (BCC) associated with the cladoceran Bosmina coregoni and the cyclopoid copepod Thermocyclops oithonoides in oligotrophic Lake Stechlin versus eutrophic Lake Dagow (northeastern Germany) were compared using molecular techniques. We also transplanted the zooplankton from their native lake to the other lake, and studied changes in their associated BCC as a result of the modified ambient environment. Bacterial community composition associated with B. coregoni was quite conservative between the oligotrophic and eutrophic lakes, and most of the bacteria belonged to Alpha- and Betaproteobacteria. In contrast, BCC associated with T. oithonoides was highly variable and dependent on the environment, and Betaproteobacteria and Bacteroidetes were the most represented among the bacteria. Thermocyclops oithonoides from the oligotrophic lake was more able to retain its bacteria after being transplanted to the eutrophic lake than vice versa. This suggests that bacteria in oligotrophic water were more firmly attached to the copepod and better in resisting environmental fluctuations than those in eutrophic water.