Heat shock treatment increases the frequency of loss of an Erythromycin resistance-encoding transposable element from the chromosome of Lactobacillus crispatus CHCC3692
Article Abstract:
Exponentially growing cells were exposed to heat shock for 10 min at 60 degree Celsius, to investigate the expression or induction of transposase gene during heat shock. Observations suggest that heat shock treatment could be used as a tool for the removal of unwanted antibiotic resistance genes harbored in transposons flanked by insertion sequence elements or transposases in lactic acid bacteria used for animal and human food production.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
Effects of Lactococcus lactis on composition of intestinal microbiota: Role of Nisin
Article Abstract:
A study was conducted on the ability of pure nisin, nisin-producing Lactococcus lactis strain CHCC5826, and the non-nisin-producing L. lactis strain CHCH2862 to affect the composition of the intestinal microbiota of human flora-associated rats. It was observed that the degradation or inactivation of nisin was indicated in the gastrointestinal tract.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Transformation of Leuconostoc carnosum 4010 and evidence for natural competence of the organism
Article Abstract:
Development of the DNA transformation protocol for Leuconostoc carnosum is identified in this study. Also, evidence that this carnosum is naturally competent in the absence of an electrical field is also demonstrated.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Differential importance of trehalose in stress resistance in fermenting and nonfermenting Saccharomyces cerevisiae cells
- Abstracts: Chemostat enrichments of human feces with resistant starch are selective for adherent butyrate-producing clostridia at high dilution rates
- Abstracts: The S. cerevisiae Rrm3p DNA helicase moves with the replication fork and affects replication of all yeast chromosomes
- Abstracts: A small RNA regulates multiple ABC transporter mRNAs by targeting C/A-rich elements inside and upstream of ribosome-binding sites
- Abstracts: Metabolic engineering of the Phenylpropanoid pathway in Saccharomyces cerevisiae. Endogenous xylose pathway in saccharomyces cerevisiae