Arsenic in the Evolution of Earth and Extraterrestrial Ecosystems

被引:97
作者
Oremland, Ronald S. [1 ]
Saltikov, Chad W. [2 ]
Wolfe-Simon, Felisa [3 ]
Stolz, John F. [4 ]
机构
[1] US Geol Survey, Menlo Pk, CA 94025 USA
[2] Univ Calif Santa Cruz, Dept Environm Toxicol, Santa Cruz, CA 95064 USA
[3] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA
[4] Duquesne Univ, Dept Biol Sci, Pittsburgh, PA 15282 USA
关键词
arsenic respiring microorganisms; biofilm; biogeochemical cycling; exobiology; planetary evolution; FUELS ANOXYGENIC PHOTOSYNTHESIS; HOT-SPRING BIOFILMS; MONO LAKE WATER; DISSIMILATORY ARSENATE; SP NOV; SPECTRAL SIGNATURES; MICROBIAL COMMUNITY; ANAEROBIC OXIDATION; SULFATE REDUCTION; OXIDASE;
D O I
10.1080/01490450903102525
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
If you were asked to speculate about the form extra-terrestrial life on Mars might take, which geomicrobial phenomenon might you select as a model system, assuming that life on Mars would be 'primitive'? Give your reasons. At the end of my senior year at Rensselaer Polytechnic Institute in 1968, I took Professor Ehrlich's final for his Geomicrobiology course. The above question beckoned to me like the Sirens to Odysseus, for if I answered, it would take so much time and thought that I would never get around to the exam's other essay questions and consequently, would be oshipwreckedo by flunking the course. So, I passed it up. With this 41-year perspective in mind, this manuscript is now submitted to Professor Ehrlich for (belated) oextra-credit.o R.S. Oremland.
引用
收藏
页码:522 / 536
页数:15
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