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The Ecology of Arsenic
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The Ecology of Arsenic
Arsenic is a metalloid whose name conjures up images of murder. Nonetheless, certain prokaryotes use arsenic oxyanions for energy generation, either by oxidizing arsenite or by respiring arsenate.Expand
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Biogeochemical aspects of atmospheric methane
Methane is the most abundant organic chemical in Earth's atmosphere, and its concentration is increasing with time, as a variety of independent measurements have shown. Photochemical reactionsExpand
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Arsenic and selenium in microbial metabolism.
Arsenic and selenium are readily metabolized by prokaryotes, participating in a full range of metabolic functions including assimilation, methylation, detoxification, and anaerobic respiration.Expand
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Bacterial respiration of arsenic and selenium.
Oxyanions of arsenic and selenium can be used in microbial anaerobic respiration as terminal electron acceptors. The detection of arsenate and selenate respiring bacteria in numerous pristine andExpand
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Bacillus arsenicoselenatis, sp. nov., and Bacillus selenitireducens, sp. nov.: two haloalkaliphiles from Mono Lake, California that respire oxyanions of selenium and arsenic
Abstract Two gram-positive anaerobic bacteria (strains E1H and MLS10) were isolated from the anoxic muds of Mono Lake, California, an alkaline, hypersaline, arsenic-rich water body. Both grew byExpand
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Use of “Specific” Inhibitors in Biogeochemistry and Microbial Ecology
The above statement, although meant to be tongue in cheek, contains an essential truism: all work with inhibitors is inherently suspect. This fact has been known by biochemists for some time.Expand
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Leisingera methylohalidivorans gen. nov., sp. nov., a marine methylotroph that grows on methyl bromide.
A marine methylotroph, designated strain MB2T, was isolated for its ability to grow on methyl bromide as a sole carbon and energy source. Methyl chloride and methyl iodide also supported growth, asExpand
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A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus
Evidence is offered for arsenate replacing phosphate as a molecular building block in a Mono Lake, California, bacterium. Life is mostly composed of the elements carbon, hydrogen, nitrogen, oxygen,Expand
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Alkalilimnicola ehrlichii sp. nov., a novel, arsenite-oxidizing haloalkaliphilic gammaproteobacterium capable of chemoautotrophic or heterotrophic growth with nitrate or oxygen as the electron
A facultative chemoautotrophic bacterium, strain MLHE-1(T), was isolated from Mono Lake, an alkaline hypersaline soda lake in California, USA. Cells of strain MLHE-1(T) were Gram-negative, shortExpand
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