Mussel Growth Supported by Methane as Sole Carbon and Energy Source
Mussel Growth Supported by Methane as Sole Carbon and Energy Source
复制标题
DOI：
10.1126/science.240.4848.78
复制
发表时间：
1988-04
期刊：
影响因子：
56.9
通讯作者：
S. Cary;C. Fisher;H. Felbeck
中科院分区：
文献类型：
--
作者：
S. Cary;C. Fisher;H. Felbeck
化学自养细菌和几种特殊的海洋无脊椎动物之间的共生是有很好的文献记载的。然而，这些共生体都没有被证明能为宿主提供足够的能量和碳来使其生长。从路易斯安那州海岸的碳氢化合物渗漏中采集的渗漏贻贝的生长速度是在受控环境中测量的，其中甲烷是唯一的碳和能源。对甲烷的响应，其生长速率增加到每天最大17.2微米，而在没有甲烷的情况下，生长速率接近于零。这些贻贝的鳃中含有甲烷营养共生菌，这表明这些细菌为宿主提供了来自甲烷的净碳流。
Symbioses between chemoautotrophic bacteria and several specialized marine invertebrates are well documented. However, none of these symbioses have been demonstrated to provide sufficient energy and carbon to the host to enable it to grow. Growth rates of seep mussels collected from hydrocarbon seeps off the coast of Louisiana were measured in a controlled environment where methane was the sole carbon and energy source. The growth rates increased to a maximum of 17.2 micrometers per day in response to methane and approached zero in the absence of methane. These mussels contain methanotrophic symbiotic bacteria in their gills, which suggests that these bacteria provide their hosts with a net carbon flux originating from methane.