Cultivation-dependent analysis of the microbial diversity associated with the seagrass meadows in Xincun Bay, South China Sea
Cultivation-dependent analysis of the microbial diversity associated with the seagrass meadows in Xincun Bay, South China Sea
复制标题
南海新村湾海草草甸微生物多样性的培养依赖分析。
DOI：
10.1007/s10646-015-1519-4
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发表时间：
2015-10-01
期刊：
影响因子：
2.7
通讯作者：
Dong, Jun-De
中科院分区：
文献类型：
--
作者：
Jiang, Yu-Feng;Ling, Juan;Dong, Jun-De
微生物群落广泛存在于海草草甸中。采用平板培养法从南海新村湾3个采样点的海草草甸中分离到496株细菌，隶属于50属。结果表明，各群落中芽孢杆菌目和弧菌目所占比例最高。沉积物中细菌的多样性高于海草，以海珠藻（Thalassia hemperichii）的丰度最高，其次是尖吻参（Enhalus acoroides）和圆齿狗舌草（Cymoelia rotundata）。还观察到微生物群落组成的季节性动态。结果表明，微生物活性与海草的生长阶段密切相关。3号试验点的微生物分布最低。细菌的丰度与细菌与植物之间的相互作用、植物的生长状况以及近岸水质和沉积物中的营养水平有关。
Microbial communities have largely existed in the seagrass meadows. A total of 496 strains of the bacteria in the seagrass meadows, which belonged to 50 genera, were obtained by the plate cultivation method from three sites of Xincun Bay, South China Sea. The results showed that Bacillales and Vibrionales accounted for the highest proportions of organisms in all communities. The diversity of the bacteria in the sediment was higher than that associated with seagrass.Thalassia hemperichiipossessed the highest abundance of bacteria, followed byEnhalus acoroides andCymodocea rotundata. Robust seasonal dynamics in microbial community composition were also observed. It was found that microbial activities were closely tied to the growth stage of the seagrass. The microbial distribution was the lowest in site 3. The abundance of the bacteria was linked to the interactions between bacteria and plants, the condition of plant and even the coastal water quality and the nutrition level in the sediment.