Microbial communities in sunken wood are structured by wood-boring bivalves and location in a submarine canyon.
Microbial communities in sunken wood are structured by wood-boring bivalves and location in a submarine canyon.
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DOI：
10.1371/journal.pone.0096248
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Galand PE
中科院分区：
文献类型：
--
作者：
Fagervold SK;Romano C;Kalenitchenko D;Borowski C;Nunes-Jorge A;Martin D;Galand PE
沉木生态系统的基石是参与纤维素降解的微生物。这些细菌可以是木材基质中的自由生活微生物，也可以是与钻木双壳类动物有关的共生细菌，如最常见的深海钻木虫-典型的蛀木虫。在这里，我们使用实验淹没松木，放置在和地中海海底布拉内斯峡谷外，比较微生物群落的木材，在粪球的木虱属。与这些动物的鳃有关。基于16 S rRNA细菌基因的标签焦磷酸测序的分析表明，沉没的木材含有三个不同的微生物群落。木材和颗粒物群落的差异表明，木虱属。通过将粪便排泄到洞穴中来创造新的微生物生态位。反过来，木虱属（Xylophaga spp.）含有潜在的细菌共生体，如存在与在其他食木海洋无脊椎动物中发现的共生细菌密切相关的序列所示。最后，我们发现，沉没的木材群落内的峡谷是不同的，比峡谷外的多样性。这一发现将海底峡谷是多种海洋生物栖息地的观点延伸到了微生物世界。
The cornerstones of sunken wood ecosystems are microorganisms involved in cellulose degradation. These can either be free-living microorganisms in the wood matrix or symbiotic bacteria associated with wood-boring bivalves such as emblematic species of Xylophaga, the most common deep-sea woodborer. Here we use experimentally submerged pine wood, placed in and outside the Mediterranean submarine Blanes Canyon, to compare the microbial communities on the wood, in fecal pellets of Xylophaga spp. and associated with the gills of these animals. Analyses based on tag pyrosequencing of the 16S rRNA bacterial gene showed that sunken wood contained three distinct microbial communities. Wood and pellet communities were different from each other suggesting that Xylophaga spp. create new microbial niches by excreting fecal pellets into their burrows. In turn, gills of Xylophaga spp. contain potential bacterial symbionts, as illustrated by the presence of sequences closely related to symbiotic bacteria found in other wood eating marine invertebrates. Finally, we found that sunken wood communities inside the canyon were different and more diverse than the ones outside the canyon. This finding extends to the microbial world the view that submarine canyons are sites of diverse marine life.
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影响因子：
2.8
作者：
Canals, Miquel;Danovaro, Roberto;Sanchez-Vidal, Anna
通讯作者：
Sanchez-Vidal, Anna
影响因子：
5.1
作者：
Blanquer, Andrea;Uriz, Maria J.;Galand, Pierre E.
通讯作者：
Galand, Pierre E.
DOI：
10.1099/ijs.0.02184-0
发表时间：
2002-11-01
影响因子：
2.8
作者：
Distel, DL;Morrill, W;Waterbury, J
通讯作者：
Waterbury, J
影响因子：
4.2
作者：
Duperron, Sebastien;Pottier, Marie-Anne;Zbinden, Magali
通讯作者：
Zbinden, Magali
影响因子：
64.8
作者：
Canals, Miquel;Puig, Pere;Fabres, Joan
通讯作者：
Fabres, Joan