MICROBIAL SILICIFICATION TRENDS IN ALKALINE HOT SPRINGS, YELLOWSTONE NATIONAL PARK, USA

机译：美国黄石国家公园碱性温泉中微生物的硅化趋势

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Thermophilic microbial communities that thrive in the geysers and hot springs of Yellowstone National Park represent analogs of some of Earth's earliest inhabitants. We report here on the mineralization of microorganisms observed in alkaline silica-depositing hot springs located in Yellowstone National Park. Analytical scanning electron microscopy of microbial streamers revealed that fossilization results from the aggregation of opal-A colloids. Patterns of deposition strongly suggest at least two distinct modes of formation for the colloids: homogeneous precipitation from supersaturated hydrothermal fluids that build up inside cells, and heterogeneous precipitation and flocculation from supersaturated solutions in the sheaths of the bacterium and on microbial cell surfaces.

机译：在黄石国家公园的间歇泉和温泉中生长的嗜热微生物群落代表了地球上某些最早的居民的类似物。我们在这里报告在位于黄石国家公园的碱性二氧化硅沉积温泉中观察到的微生物矿化情况。微生物流光的分析扫描电子显微镜显示，化石是蛋白石-A胶体聚集的结果。沉积模式强烈暗示了胶体的至少两种不同的形成方式：在细胞内部积累的过饱和热液的均匀沉淀，以及细菌鞘和微生物细胞表面过饱和溶液的不均匀沉淀和絮凝。

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来源
《Second European Workshop on Exo-Astrobiology Sep 16-19, 2002 Graz, Austria》|2002年|p.453-454|共2页
会议地点 Graz(AT)
作者
Jean-Francois Flot; Sherry Lynn Cady;
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作者单位

Departement de Biochimie-Genie Biologique, Ecole Normale Superieure de Cachan, 61, avenue du President Wilson, 94235 Cachan Cedex, France;

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原文格式 PDF
正文语种 eng
中图分类生物物理学;
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1. The role of extracellular polymeric substances in the silicification of calothrix: Evidence from microbial mat communities in hot springs at Yellowstone National Park, USA [J] . Hugo R.C., Cady S.L., Smythe W. Geomicrobiology journal . 2011,第5a8期

机译：细胞外聚合物质在杯状硅化中的作用：来自美国黄石国家公园温泉中微生物垫群落的证据
2. Impact of carbon metabolism on C-13 signatures of cyanobacteria and green non-sulfur-like bacteria inhabiting a microbial mat from an alkaline siliceous hot spring in Yellowstone National Park (USA) [J] . van der Meer MTJ, Schouten S, Damste JSS, Environmental microbiology . 2007,第1期

机译：碳代谢对居住在黄石国家公园（美国）碱性硅质温泉中微生物垫上的蓝细菌和绿色非硫类细菌的C-13特征的影响
3. Diel Variations in Carbon Metabolism by Green Nonsulfur-Like Bacteria in Alkaline Siliceous Hot Spring Microbial Mats from Yellowstone National Park [J] . Marcel T. J. van der Meer, Stefan Schouten, Mary M. Bateson, Applied and Environmental Microbiology . 2005,第7期

机译：黄石国家公园碱性硅质温泉微生物垫中绿色非硫类细菌碳代谢的狄尔变化
4. MICROBIAL SILICIFICATION TRENDS IN ALKALINE HOT SPRINGS, YELLOWSTONE NATIONAL PARK, USA [C] . Jean-Francois Flot, Sherry Lynn Cady, European Space Agency, European workshop on exo-astrobiology . 2002

机译：美国黄石国家公园的碱性温泉的微生物硅化趋势
5. Geobiological interactions of archaeal populations in acidic and alkaline geothermal springs of Yellowstone National Park, WY, USA [D] . Beam, Jacob Preston 2015

机译：美国怀俄明州黄石国家公园酸性和碱性地热泉中古生菌种群的地球生物学相互作用
6. Diel Variations in Carbon Metabolism by Green Nonsulfur-Like Bacteria in Alkaline Siliceous Hot Spring Microbial Mats from Yellowstone National Park [O] . Marcel T. J. van der Meer, Stefan Schouten, Mary M. Bateson, 2005

机译：黄石国家公园碱性硅质温泉微生物垫中绿色类非硫细菌的碳代谢的狄尔变化
7. Diel Variations in Carbon Metabolism by Green Nonsulfur-Like Bacteria in Alkaline Siliceous Hot Spring Microbial Mats from Yellowstone National Park [O] . van der Meer, Marcel T. J., Schouten, Stefan, Bateson, Mary M., 2005

机译：黄石国家公园碱性硅质温泉微生物垫中绿色类非硫细菌的碳代谢的狄尔变化

MICROBIAL SILICIFICATION TRENDS IN ALKALINE HOT SPRINGS, YELLOWSTONE NATIONAL PARK, USA

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