Compositional and functional features of the gut microbiota of the intertidal snail Nerita yoldii along China's coast
Compositional and functional features of the gut microbiota of the intertidal snail Nerita yoldii along China's coast
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DOI：
10.1017/s0025315422000157
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发表时间：
2021-12
影响因子：
1.2
通讯作者：
Yafei Zhu;Ming-ling Liao;M. Ding;Zhao-Kai Wang;Yun‐wei Dong
中科院分区：
文献类型：
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作者：
Yafei Zhu;Ming-ling Liao;M. Ding;Zhao-Kai Wang;Yun‐wei Dong
摘要肠道微生物区系对动物在当地环境中的生存起着重要作用。潮间带岩岸是海洋、大气和陆地环境的重要界面，而微生物在潮间带宿主和环境之间的传播方式复杂，在很大程度上被忽视。在本研究中，我们对在气候变化和人为海景变化的共同影响下正在经历范围北移的潮间带钉螺的肠道微生物区系进行了表征，并在中国钉螺分布范围的5个地点测定了附近岩石和海水中的环境微生物区系。肠道微生物群落与环境微生物群落明显不同，肠道、岩石和海水微生物群落中的优势类群分别为Tenericius、蓝藻和拟杆菌，以及变形杆菌。在属水平上，支原体是肠道微生物群落中的优势种，相对丰度为48.0±10.2%，但在岩石和水中的相对丰度较低。这些结果表明，约氏钉螺的肠道微生物群落相对独立于环境微生物群落，肠道中的支原体属是环境中罕见的优势种，可能有助于钉螺在恶劣的潮间带环境中生活，特别是在其最北端的分布范围边缘。
Abstract The gut microbiota plays an important role in animals’ survival in their local environments. The intertidal rocky shore is a key interface of oceanic, atmospheric and terrestrial environments, and the transmission modes of microbes between an intertidal host and the environment are complex and largely ignored. In the present study, we characterized the gut microbiota of the intertidal snail Nerita yoldii, which is experiencing a northward range shift under the combined impacts of climate change and anthropogenic seascape transformation, and also determined the nearby environmental microbiota on the rock and in the seawater at five locations along the snail's distribution range in China. The gut microbial communities were significantly different from the environmental microbial communities, and the dominant phyla were Tenericutes, Cyanobacteria and Bacteroidetes, and Proteobacteria in the gut, rock and seawater microbial communities, respectively. At the genus level, Mycoplasma, with a relative abundance of 48.0 ± 10.2%, was the dominant genus in the gut microbial community, however, the relative abundances of this genus on the rock and in the water were low. These results imply that the gut microbial community of the intertidal snail N. yoldii is relatively independent from the environmental microbial community, and the dominant genus Mycoplasma in the gut, that is rare in the environment, can potentially assist the snail living in the harsh intertidal environment, especially at its northernmost distribution range edge.