Fumarolic ice cave sediment Metagenome. sediment metagenome

A metagenome from fumarole sediments sampled from Warren Cave, Antarctica. Warren Cave is an ice cave on Mt. Erebus Volcano. These sediments were sampled from deep within the dark cave where there is no known source of introduced organic carbon. Dark ice caves such as Warren Cave exemplify an environment where the input of plant and other photosynthetic-derived organic carbon is minimal and thus provides an environment at the extreme low end of the spectrum for carbon concentration. Under these conditions microbes will be forced to scavenge any and all energy sources available, including gases and inorganic compounds found in the rock.

本数据集为采自南极洲沃伦洞穴（Warren Cave）喷气孔沉积物的宏基因组（metagenome）。沃伦洞穴是埃里伯斯火山上的一处冰洞。这批沉积物采集自该黑暗洞穴的深部，该处不存在已知的外源性有机碳输入源。诸如沃伦洞穴的黑暗冰洞，其环境内植物及其他光合衍生有机碳的输入量微乎其微，因此属于碳浓度处于光谱极端低值的生境。在此类条件下，微生物将被迫摄取所有可获取的能源，包括岩石中存在的气体与无机化合物。