Electrode-reducing microorganisms that harvest energy from marine sediments

被引：1058
|
作者：
Bond, DR
Holmes, DE
Tender, LM
Lovley, DR [1 ]
机构：
[1] Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA
[2] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA
来源：
SCIENCE | 2002年 / 295卷 / 5554期
关键词：
D O I：
10.1126/science.1066771
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Energy in the form of electricity can be harvested from marine sediments by placing a graphite electrode (the anode) in the anoxic zone and connecting it to a graphite cathode in the overlying aerobic water. We report a specific enrichment of microorganisms of the family Geobacteraceae on energy-harvesting anodes, and we show that these microorganisms can conserve energy to support their growth by oxidizing organic compounds with an electrode serving as the sole electron acceptor. This finding not only provides a method for extracting energy from organic matter, but also suggests a strategy for promoting the bioremediation of organic contaminants in subsurface environments.
引用
收藏
页码：483 / 485
页数：3
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