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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | de Benito Armas, A. Padula, N. L. Setlow, B. Setlow, P. |
| Description | Country affiliation: United States Author Affiliation: de Benito Armas A ( Department of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington, CT 06030-3305, USA.) |
| Abstract | AIMS: To determine if pretreatment with oxidizing agents sensitizes Bacillus subtilis spores to dry heat or desiccation. METHODS: Bacillus subtilis spores were killed approx. 90% by oxidizing agents, and the sensitivity of treated and untreated spores to dry heat and desiccation was determined. The effects of pyruvate on spore recovery after oxidizing agent pretreatment and then dry heat or desiccation were also determined. CONCLUSIONS: Spores pretreated with Oxone or hypochlorite were not sensitized to dry heat or freeze-drying. However, hydrogen peroxide or t-butylhydroperoxide pretreatment sensitized spores to dry heat or desiccation, and the desiccation caused mutagenesis in the survivors. Pyruvate increased recovery of spores treated with hydrogen peroxide alone or plus dry heat or desiccation, and with t-butylhydroperoxide and desiccation, but not with t-butylhydroperoxide alone or plus dry heat. SIGNIFICANCE AND IMPACT OF THE STUDY: Pretreatment with peroxides sensitizes bacterial spores to subsequent stress. This finding may suggest improved regimens for spore inactivation. |
| File Format | HTM / HTML |
| ISSN | 02668254 |
| Issue Number | 4 |
| Volume Number | 46 |
| e-ISSN | 1472765X |
| Journal | Letters in Applied Microbiology |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2008-04-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Anti-bacterial Agents Pharmacology Bacillus Subtilis Drug Effects Desiccation Hot Temperature Microbial Viability Oxidants Spores, Bacterial Journal Article Research Support, U.s. Gov't, Non-p.h.s. |
| Content Type | Text |
| Resource Type | Article |
| Subject | Applied Microbiology and Biotechnology |
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