How deep-sea wood falls sustain chemosynthetic life.
How deep-sea wood falls sustain chemosynthetic life.
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DOI：
10.1371/journal.pone.0053590
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Boetius A
中科院分区：
文献类型：
--
作者：
Bienhold C;Pop Ristova P;Wenzhöfer F;Dittmar T;Boetius A
大量的有机食物福尔斯落入深海--如鲸鱼尸体和原木--被认为是居住在热喷口和冷泉的高度适应化能合成生物扩散的垫脚石。在这里，我们调查的生物地球化学和微生物的过程，导致硫化物壁龛的发展部署木材殖民实验在1690米的深度在东地中海一年。蛀木双壳类在木材的降解过程中起着关键作用，促进了缺氧区和厌氧微生物过程的发展，如硫酸盐还原。与木材有关的动物和细菌包括从其他深海生境报告的类型，包括化学合成生态系统，证实了大型有机食物福尔斯作为生物多样性热点和喷口和渗漏群落的垫脚石的潜在作用。特定的细菌群落开发和周围的木材福尔斯在一年内，是不同的新鲜淹没木材和背景沉积物。其中包括硫酸盐还原菌和纤维素分解菌，它们可能在化学合成生物和其他深海动物利用木材方面发挥重要作用。
Large organic food falls to the deep sea – such as whale carcasses and wood logs – are known to serve as stepping stones for the dispersal of highly adapted chemosynthetic organisms inhabiting hot vents and cold seeps. Here we investigated the biogeochemical and microbiological processes leading to the development of sulfidic niches by deploying wood colonization experiments at a depth of 1690 m in the Eastern Mediterranean for one year. Wood-boring bivalves of the genus Xylophaga played a key role in the degradation of the wood logs, facilitating the development of anoxic zones and anaerobic microbial processes such as sulfate reduction. Fauna and bacteria associated with the wood included types reported from other deep-sea habitats including chemosynthetic ecosystems, confirming the potential role of large organic food falls as biodiversity hot spots and stepping stones for vent and seep communities. Specific bacterial communities developed on and around the wood falls within one year and were distinct from freshly submerged wood and background sediments. These included sulfate-reducing and cellulolytic bacterial taxa, which are likely to play an important role in the utilization of wood by chemosynthetic life and other deep-sea animals.
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影响因子：
5.6
作者：
Carere CR;Sparling R;Cicek N;Levin DB
通讯作者：
Levin DB
影响因子：
2.5
作者：
Baco, AR;Smith, CR
通讯作者：
Smith, CR
影响因子：
4.4
作者：
BENNER, R;MACCUBBIN, AE;HODSON, RE
通讯作者：
HODSON, RE
影响因子：
2.5
作者：
Baco, AR;Smith, CR;Vrijenhoek, RC
通讯作者：
Vrijenhoek, RC
影响因子：
1.2
作者：
Ballard, RD;Hiebert, FT;Torre, F
通讯作者：
Torre, F