Abstract:
:A new primer set was designed to specifically amplify ca. 1,100 bp of aoxB genes encoding the As(III) oxidase catalytic subunit from taxonomically diverse aerobic As(III)-oxidizing bacteria. Comparative analysis of AoxB protein sequences showed variable conservation levels and highlighted the conservation of essential amino acids and structural motifs. AoxB phylogeny of pure strains showed well-discriminated taxonomic groups and was similar to 16S rRNA phylogeny. Alphaproteobacteria-, Betaproteobacteria-, and Gammaproteobacteria-related sequences were retrieved from environmental surveys, demonstrating their prevalence in mesophilic As-contaminated soils. Our study underlines the usefulness of the aoxB gene as a functional marker of aerobic As(III) oxidizers.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Quéméneur M,Heinrich-Salmeron A,Muller D,Lièvremont D,Jauzein M,Bertin PN,Garrido F,Joulian Cdoi
10.1128/AEM.02851-07subject
Has Abstractpub_date
2008-07-01 00:00:00pages
4567-73issue
14eissn
0099-2240issn
1098-5336pii
AEM.02851-07journal_volume
74pub_type
杂志文章abstract::o-Methoxycinnamaldehyde has been isolated and purified from powdered cinnamon. The compound inhibits the growth and toxin production of mycotoxin-producing fungi. The substance completely inhibited the growth of Aspergillus parasiticus and A. flavus at 100 microgram/ml and A. ochraceus and A. versicolor at 200 microgr...
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journal_title:Applied and environmental microbiology
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doi:10.1128/AEM.36.5.755-770.1978
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