منابع مشابه
Microbial lithification in marine stromatolites and hypersaline mats.
Lithification in microbial ecosystems occurs when precipitation of minerals outweighs dissolution. Although the formation of various minerals can result from microbial metabolism, carbonate precipitation is possibly the most important process that impacts global carbon cycling. Recent investigations have produced models for stromatolite formation in open marine environments and lithification in...
متن کاملMicrobial species richness and metabolic activities in hypersaline microbial mats: insight into biosignature formation through lithification.
Microbial mats in the hypersaline lake of Salt Pan, Eleuthera, Bahamas, display a gradient of lithification along a transect from the center to the shore of the lake. These mats exist under similar geochemical conditions, with light quantity and quality as the sole major environmental difference. Therefore, we hypothesized that the microbial community may be driving the differences in lithifica...
متن کاملMicrobial diversity in modern marine stromatolites,
Laura K. Baumgartner,1† John R. Spear,2 Daniel H. Buckley,3 Norman R. Pace,4 R. Pamela Reid,5 Christophe Dupraz1 and Pieter T. Visscher1* 1Department of Marine Sciences, University of Connecticut, Groton, CT 06340, USA. 2Division of Environmental Science and Engineering, Colorado School of Mines, Golden, CO 80401, USA. 3Department of Crop and Soil Sciences, Cornell University, Ithaca, NY 14853,...
متن کاملCyanobacterial Mats and Stromatolites
4.2 Microbial Mats, Stromatolites and Their Environments .............................................. 67 4.2.1 What Are Microbial Mats and Stromatolites? Some De fi nitions ...................................................................... 67 4.2.2 Microbial Mats and Stromatolites: The Geological Evidence ............................................... 67 4.2.3 Strati fi cation and Struct...
متن کاملHeterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
Although hypersaline environments pose challenges to life because of the low water content (water activity), many such habitats appear to support eukaryotic microbes. This contribution presents brief reviews of our current knowledge on eukaryotes of water-column haloclines and brines from Deep Hypersaline Anoxic Basins (DHABs) of the Eastern Mediterranean, as well as shallow-water hypersaline m...
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ژورنال
عنوان ژورنال: Trends in Microbiology
سال: 2005
ISSN: 0966-842X
DOI: 10.1016/j.tim.2005.07.008