Abstract:
:Epilithic bacteria were isolated nonselectively from riverbed stones and examined by gel zymography for their ability to produce alkylsulfatase (AS) enzymes and thus to metabolize alkyl sulfate surfactants such as sodium dodecyl sulfate. The percentages of AS+ isolates from stone epilithon at five sites from the source to the river mouth were measured on five sampling days spread over 1 year. The results showed that (i) the prevalence of epilithic AS+ strains (as a percentage of all isolates) was much higher at polluted sites than at the source; (ii) when averaged over the whole river, percentages of AS+ strains were significantly higher at the end of summer compared with either the preceding or the following winter; (iii) analysis of site-sampling time interactions indicated that water quality factors (e.g., biochemical oxygen demand and dissolved oxygen concentration) rather than climatic factors determined the distributions of epilithic AS+ isolates; (iv) constitutive strains were the most prevalent (7.2% of all isolates), with smaller numbers of isolates with inducible (4.5%) and repressible (1.7%) enzymes.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Anderson DJ,Day MJ,Russell NJ,White GFdoi
10.1128/AEM.54.2.555-560.1988subject
Has Abstractpub_date
1988-02-01 00:00:00pages
555-60issue
2eissn
0099-2240issn
1098-5336journal_volume
54pub_type
杂志文章abstract::Fermentation of the pentose sugar xylose to ethanol in lignocellulosic biomass would make bioethanol production economically more competitive. Saccharomyces cerevisiae, an efficient ethanol producer, can utilize xylose only when expressing the heterologous genes XYL1 (xylose reductase) and XYL2 (xylitol dehydrogenase)...
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journal_title:Applied and environmental microbiology
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doi:10.1128/AEM.45.1.260-264.1983
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journal_title:Applied and environmental microbiology
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更新日期:1987-12-01 00:00:00
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pub_type: 杂志文章
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更新日期:1995-08-01 00:00:00
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更新日期:1983-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:2005-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:1980-07-01 00:00:00
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更新日期:2006-08-01 00:00:00
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pub_type: 杂志文章
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更新日期:1989-07-01 00:00:00
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journal_title:Applied and environmental microbiology
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doi:10.1128/AEM.44.5.1096-1101.1982
更新日期:1982-11-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/AEM.59.8.2758-2759.1993
更新日期:1993-08-01 00:00:00
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journal_title:Applied and environmental microbiology
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更新日期:2001-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.70.7.4187-4192.2004
更新日期:2004-07-01 00:00:00
abstract::The cloned 135-kDa CryIC delta-endotoxin from Bacillus thuringiensis is a lepidopteran-active toxin, displaying high activity in vivo against Spodoptera litoralis and Spodoptera frugiperda larvae and in vitro against the S. frugiperda Sf9 cell line. Here, we report that the CryIC delta-endotoxin cloned from B. thuring...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.2.680-684.1996
更新日期:1996-02-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2007-11-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.9.3196-3202.1996
更新日期:1996-09-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.35.1.166-171.1978
更新日期:1978-01-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2013-08-01 00:00:00
abstract::The introduction of "solids" (i.e., complementary foods) to the milk-only diet in early infancy affects the development of the gut microbiota. The aim of this study was to determine whether a "baby-led" approach to complementary feeding that encourages the early introduction of an adult-type diet results in alteration...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章,随机对照试验
doi:10.1128/AEM.00914-18
更新日期:2018-08-31 00:00:00
abstract::The degradation of the herbicides EPTC (S-ethyl dipropylthiocarbamate) and atrazine (2-chloro-4-ethyl-amino-6-isopropylamino-1,3,5-triazine) is associated with an indigenous plasmid in Rhodococcus sp. strain TE1. Plasmid DNA libraries of Rhodococcus sp. strain TE1 were constructed in a Rhodococcus-Escherichia coli shu...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.61.5.2061-2065.1995
更新日期:1995-05-01 00:00:00