Abstract:
:To ascertain the health risks that may be posed by the land application of sewage sludges, a scheme was devised to determine the types and numbers of pathogenic and potentially pathogenic bacteria present in sludges. A processing treatment was adapted to sludge to give a homogenate which yielded the greatest numbers of viable bacteria. Conventional methods were successful in enumerating Klebsiella, Staphylococcus, gram-negative enteric bacteria, and commonly used indicator organisms. Modifications of conventional methods improved the enumeration of Salmonella, Mycobacterium sp., fluorescent Pseudomonas sp., and Clostridium perfringens. However, Shigella methodology yielded only one isolate. Utilizing the proposed scheme, the population densities of these organisms were estimated in three domestic wastewater sludges. In light of these results, the potential impact of land application of sewage sludges is discussed.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Dudley DJ,Guentzel MN,Ibarra MJ,Moore BE,Sagik BPdoi
10.1128/AEM.39.1.118-126.1980subject
Has Abstractpub_date
1980-01-01 00:00:00pages
118-26issue
1eissn
0099-2240issn
1098-5336journal_volume
39pub_type
杂志文章abstract::To elevate the production level of heterologous polyketide in Streptomyces venezuelae, an additional copy of the positive regulatory gene pikD was introduced into the pikromycin (Pik) polyketide synthase (PKS) deletion mutant of S. venezuelae ATCC 15439 expressing tylosin PKS genes. The resulting mutant strain showed ...
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doi:10.1128/AEM.63.2.513-518.1997
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.64.3.1006-1012.1998
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pub_type: 杂志文章
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更新日期:1983-07-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.46.6.1420-1422.1983
更新日期:1983-12-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/AEM.43.5.1133-1138.1982
更新日期:1982-05-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.70.10.5898-5904.2004
更新日期:2004-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/AEM.70.8.4996-5004.2004
更新日期:2004-08-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.03873-12
更新日期:2013-04-01 00:00:00