Characteristic changing of Brevibacillus laterosporus SA14 by ultraviolet and chemical mutagenesis

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dc.contributor.authorSudawan Ratanaparikonen_US
dc.contributor.authorSuthidee Petsongen_US
dc.contributor.authorUthoomporn Rattanaen_US
dc.contributor.authorMonthon Lertcanawanichakulen_US
dc.date.accessioned2011-02-20T04:32:53Z
dc.date.available2011-02-20T04:32:53Z
dc.date.created2009-12-24en_US
dc.date.issued2009-12-24en_US
dc.description.abstractBrevibacillus laterosporus SA14, Gram-positive spore-forming bacterium, could produce biocompounds which inhibit the growth of Gram-positive cocci in cluster (Staphylococcus aureus), including methicillin-resistant Staphylococcus aureus (MRSA).  The characteristic changing of this bacterium was done by random mutagenesis, using ultraviolet (UV) or 1-hexyl-3-nitro-1-nitrosoguanidine (NTG). Five mutants were isolated, three from UV mutagenesis, named as UV1, UV2, LZ1; and two from chemical mutagenesis, named as NTG1, NT8.  The cells and culture broth of all mutants could inhibit the growth of indicating bacteria, Staphylococcus aureus TISTR 517 and Bacillus  subtilis ATCC 6633 and still had hemolytic activity when tested by means of spot on lawn and agar well diffusion. The mutant cells were less resistant to acid, oxgall bile and antibiotics than those of wild type (SA 14).  However, only culture broth of LZ1 mutant gave the least hemolytic activity. It may be used for further study as a model to develop the antimicrobial drugs.en_US
dc.identifier.citationJournal of Medical Technology and Physical Therapy; Volume 21 Number 2, May - August 2009; 113-122en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/130806
dc.language.isoen_USen_US
dc.publisherKhon Kaen Universityen_US
dc.rightsKhon Kaen Universityen_US
dc.source.urihttps://thailand.digitaljournals.org/index.php/JMTPT/issue/archiveen_US
dc.source.urihttps://thailand.digitaljournals.org/index.php/JMTPT/article/view/267en_US
dc.titleCharacteristic changing of Brevibacillus laterosporus SA14 by ultraviolet and chemical mutagenesisen_US
dc.typeORIGINAL ARTICLEen_US
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