Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany. Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, USA.
Environ Microbiol Rep. 2009 Feb;1(1):50-5. doi: 10.1111/j.1758-2229.2008.00003.x.
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.
使用分子技术比较了贫营养的 Stechlin 湖和富营养的 Dagow 湖（德国东北部）中枝角类动物 Bosmina coregoni 和桡足类动物 Thermocyclops oithonoides 相关的细菌群落组成（BCC）。我们还将浮游动物从其原生湖泊移植到另一个湖泊，并研究了由于环境变化而导致的相关 BCC 的变化。贫营养和富营养湖泊之间 B. coregoni 相关的细菌群落组成相当保守，大多数细菌属于 Alpha-和 Betaproteobacteria。相比之下，与 T. oithonoides 相关的 BCC 高度可变且依赖于环境，其中 Betaproteobacteria 和 Bacteroidetes 是细菌中最具代表性的。与富营养湖泊相比，从贫营养湖泊移植到富营养湖泊的 T. oithonoides 能够保留更多的细菌。这表明贫营养水中的细菌更牢固地附着在桡足类动物上，并且比富营养水中的细菌更好地抵抗环境波动。
