Document Detail


Lipolytic bacteria in the Ottawa river.
MedLine Citation:
PMID:  4762394     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Lipolytic bacteria were isolated from two stations on Brewery Creek, an arm of the Ottawa River, during the winter of 1971-72. Total counts were approximately sevenfold higher at the more polluted downstream station, whereas lipolytic counts were about 100-fold higher. At this station, significantly more lipolytic bacteria grew on plates incubated at 20 C than at 4 C, suggesting that the population was comprised of both mesophiles and psychrophiles. However, at the upstream station, approximately the same number were obtained at both temperatures. A total of 434 isolates, mainly from the downstream station, were tentatively classified. The major groups were Pseudomonas, Acinetobacter-Moraxella, and Aeromonas. Though the total number of lipolytic bacteria was fairly constant throughout the winter, the relative abundance of the acinetobacters dropped from approximately 90% in November to less than 10% in March, and then increased. The aeromonads and pseudomonads showed the opposite trend. Most of the bacteria, though isolated at 4 C, also grew at 30 C. Lipolysis, however, was generally strongest at 20 C or below.
Authors:
C R Blaise; J B Armstrong
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied microbiology     Volume:  26     ISSN:  0003-6919     ISO Abbreviation:  Appl Microbiol     Publication Date:  1973 Nov 
Date Detail:
Created Date:  1974-02-12     Completed Date:  1974-02-12     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7605802     Medline TA:  Appl Microbiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  733-40     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aeromonas / isolation & purification
Alcaligenes / isolation & purification
Bacteria / isolation & purification*
Canada
Catalase / diagnostic use
Culture Media
Enterobacteriaceae / isolation & purification
Filtration
Gelatin / metabolism
Glucose / metabolism
Hydrolysis
Lipid Metabolism*
Membranes
Moraxella / isolation & purification
Oxidoreductases / diagnostic use
Pseudomonas / isolation & purification
Streptococcus / isolation & purification
Time Factors
Vibrio / isolation & purification
Water Microbiology*
Water Pollution*
Chemical
Reg. No./Substance:
0/Culture Media; 50-99-7/Glucose; 9000-70-8/Gelatin; EC 1.-/Oxidoreductases; EC 1.11.1.6/Catalase
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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