The Microbial Role in Hot Spring Silicification
نویسندگان
چکیده
منابع مشابه
Virus silicification under simulated hot spring conditions.
Silicification of organisms in silica-depositing environments can impact both their ecology and their presence in the fossil record. Although microbes have been silicified under laboratory and environmental conditions, viruses have not. Bacteriophage T4 was successfully silicified under laboratory conditions that closely simulated those found in silica-depositing hot springs. Virus morphology w...
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Evaporation of silica-rich geothermal waters is one of the main abiotic drivers of the formation of silica sinters around hot springs. An important role in sinter structural development is also played by the indigenous microbial communities, which are fossilized and eventually encased in the silica matrix. The combination of these two factors results in a wide variety of sinter structures and f...
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Archean microfossils provide some of the earliest physical evidence for life on Earth, yet there remains a great deal of uncertainty regarding which micro-organisms were actually preserved. Because of the limited cellular detail remaining, interpretation of those microfossils has been based solely on size and morphology. This has led to significant controversy surrounding the presence or absenc...
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Direct molecular analysis of the composition and structure of geothermal cyanobacterial mat communities has revealed diversity patterns suggesting that adaptive radiation and geographic isolation are the important drivers of cyanobacterial diversification. It is clear that 16S rRNA sequence variation cannot detect all ecological or geographic populations (ecotypes and geotypes, respectively), b...
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Patterns of (sup14)CO(inf2) incorporation into molecular components of the thermophilic cyanobacterial mat communities inhabiting hot springs located in Yellowstone National Park and Synechococcus sp. strain C1 were investigated. Exponentially growing Synechococcus sp. strain C1 partitioned the majority of incorporated (sup14)CO(inf2) into protein, low-molecular-weight metabolites, and lipid fr...
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ژورنال
عنوان ژورنال: AMBIO: A Journal of the Human Environment
سال: 2004
ISSN: 0044-7447
DOI: 10.1579/0044-7447-33.8.552