Apparent microfloral response to organic degradation on bathyal seafloor: An analysis based on sediment fatty acids
Apparent microfloral response to organic degradation on bathyal seafloor: An analysis based on sediment fatty acids
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深海微生物对海底有机降解的明显反应：基于沉积物脂肪酸的分析
DOI：
10.1046/j.1439-0485.2001.01728.x
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
C. Meisel
中科院分区：
文献类型：
--
作者：
T. Naganuma;M. Hattori;K. Akimoto;J. Hashimoto;H. Momma;C. Meisel
.研究了实验性有机降解诱导的深海微植物区系演替。沉积物中短链（C9-20）脂肪酸的含量和组成发生了显著变化，表明沉积物微生物区系发生了变化，甲烷氧化菌和硫酸盐还原菌的生物标志物脂肪酸占主导地位。 由此产生的脂肪酸组合物是最密切相关的那些从附近的甲烷渗漏窝藏一个密集的Calyptogena殖民地，蛤蜊也被认为是在附近部署的有机质量。这些观察结果表明，半深海海底的有机物降解刺激了甲烷营养和硫营养微生物群落的形成，导致甲烷渗漏型底栖生物群落的形成。
. Abyssal microfloral succession induced by experimental organic degradation was investigated. Notable changes in amounts and compositions of short-chain (C9-20) sediment fatty acids were observed, which indicated the shift of sediment microflora. Biomarker fatty acids for methanotrophs and sulfate-reducing bacteria dominated. Resultant fatty acid compositions were most closely related to those from a nearby methane seep harboring a dense Calyptogena colony; the clams were also seen in close vicinity of the deployed organic mass. These observations suggest that the organic degradation on the bathyal seafloor stimulates the formation of methanotrophic and thiotrophic microflora, resulting in the formation of a methane-seep-type benthic community.