Hydrothermal chimneys host habitat-specific microbial communities: analogues for studying the possible impact of mining seafloor massive sulfide deposits.
Hydrothermal chimneys host habitat-specific microbial communities: analogues for studying the possible impact of mining seafloor massive sulfide deposits.
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DOI：
10.1038/s41598-018-28613-5
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发表时间：
2018-07-10
影响因子：
4.6
通讯作者：
Perner M
中科院分区：
文献类型：
--
作者：
Han Y;Gonnella G;Adam N;Schippers A;Burkhardt L;Kurtz S;Schwarz-Schampera U;Franke H;Perner M
为了评估从灭绝的热液喷口环境中开采海底块状硫化物（SMS）对生态系统造成不可逆转的改变的风险，我们从印度洋脊沿线的 Kairei 和 Pelagia 喷口区对 SMS 类似的栖息地进行了采样。总共分析了来自 14 个不同地点的 1980 万个 16S rRNA 标签，并对微生物群落进行了相互比较，并与来自其他海洋环境的公开数据集进行了比较。烟囱似乎为微生物提供了栖息地，而这些微生物在其他海洋栖息地中未发现或仅可检测到很少的数量。这些烟囱还栖息着稀有生物，可能是海洋种子库的重要组成部分。来自活动和非活动烟囱样本的许多读数都聚集到 OTU 中，与已知物种相似度很低或没有相似度。由于我们不知道这些未知生物体催化的化学反应，因此这种多样性丧失和生物地理耦合的影响很难预测。鉴于烟囱结构可以被视为 SMS 类似物，从 Kairei 和 Pelagia 油田海底去除硫化物沉积物很可能会改变微生物组成，并影响底栖区域甚至更远的元素循环。
To assess the risk that mining of seafloor massive sulfides (SMS) from extinct hydrothermal vent environments has for changing the ecosystem irreversibly, we sampled SMS analogous habitats from the Kairei and the Pelagia vent fields along the Indian Ridge. In total 19.8 million 16S rRNA tags from 14 different sites were analyzed and the microbial communities were compared with each other and with publicly available data sets from other marine environments. The chimneys appear to provide habitats for microorganisms that are not found or only detectable in very low numbers in other marine habitats. The chimneys also host rare organisms and may function as a vital part of the ocean’s seed bank. Many of the reads from active and inactive chimney samples were clustered into OTUs, with low or no resemblance to known species. Since we are unaware of the chemical reactions catalyzed by these unknown organisms, the impact of this diversity loss and bio-geo-coupling is hard to predict. Given that chimney structures can be considered SMS analogues, removal of sulfide deposits from the seafloor in the Kairei and Pelagia fields will most likely alter microbial compositions and affect element cycling in the benthic regions and probably beyond.
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影响因子：
4.2
作者：
Campbell, Mark A.;Chain, Patrick S. G.;Klotz, Martin G.
通讯作者：
Klotz, Martin G.
影响因子：
5.1
作者：
Dick, Gregory J.;Tebo, Bradley M.
通讯作者：
Tebo, Bradley M.
影响因子：
2.6
作者：
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通讯作者：
BARBIER, G
影响因子：
3.7
作者：
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通讯作者：
Cambon-Bonavita, Marie-Anne
影响因子：
2.8
作者：
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通讯作者：
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