| Catalase activity and the survival of Pseudomonas putida, a root colonizer, upon treatment with peracetic acid. | |
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MedLine Citation:
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PMID: 11315113 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Peracetic acid is used as a sterilant in several industrial settings. Cells of a plant-colonizing bacterium, Pseudomonas putida in liquid suspension, were more sensitive to killing by peracetic acid when they lacked a major catalase activity, catalase A. Low doses of peracetic acid induced promoter activity of the gene encoding catalase A and increased total catalase specific activity in cell extracts. Microbes present in native agricultural soils rapidly degraded the active oxygen species present in peracetic acid. The simultaneous release of oxygen was consistent with a role for catalase in degrading the hydrogen peroxide that is part of the peracetic acid-equilibrium mixture. Amendment of sterilized soils with wild-type P. putida restored the rate of degradation of peracetic acid to a higher level than was observed in the soils amended with the catalase A-deficient mutant. The association of the bacteria with the plant roots resulted in protection of the wild-type as well as the catalase-deficient mutant from killing by peracetic acid. No differential recovery of the wild-type and catalase A mutant of P. putida was observed from roots after the growth matrix containing the plants was flushed with peracetic acid. |
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Authors:
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A J Anderson; C D Miller |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Canadian journal of microbiology Volume: 47 ISSN: 0008-4166 ISO Abbreviation: Can. J. Microbiol. Publication Date: 2001 Mar |
Date Detail:
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Created Date: 2001-04-20 Completed Date: 2001-08-16 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0372707 Medline TA: Can J Microbiol Country: Canada |
Other Details:
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Languages: eng Pagination: 222-8 Citation Subset: IM |
Affiliation:
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Department of Biology, Utah State University, Logan 84322-5305, USA. anderson@biology.usu.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acetic Acid
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pharmacology Bacterial Proteins / genetics Catalase / analysis*, genetics Disinfectants / pharmacology* Gene Expression Regulation, Bacterial Gene Expression Regulation, Enzymologic Hydrogen Peroxide / pharmacology Mutation Peracetic Acid / pharmacology* Plant Roots / microbiology* Promoter Regions, Genetic Pseudomonas putida / drug effects*, enzymology Reactive Oxygen Species / metabolism Soil Microbiology Superoxide Dismutase / genetics |
| Chemical | |
Reg. No./Substance:
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0/Bacterial Proteins; 0/Disinfectants; 0/Reactive Oxygen Species; 0/SodB protein, Bacteria; 64-19-7/Acetic Acid; 7722-84-1/Hydrogen Peroxide; 79-21-0/Peracetic Acid; EC 1.11.1.6/Catalase; EC 1.15.1.1/Superoxide Dismutase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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