CONJUGAL TRANSFER OF THE DRUG RESISTANCE PLASMID pAMÎ² IN THE LACTIC STREPTOCOCCI

Gasson, M. J.; Davies, F. L.

doi:10.1111/j.1574-6941.1980.tb01575.x

Cited by 96 publications

(59 citation statements)

References 9 publications

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“…Transfer from lactobacilli to other commensal bacteria has been documented in vitro (Feld et al, 2008;Gevers et al, 2003b;Jacobsen et al, 2007;Sasaki et al, 1988;Schlundt et al, 1994). Studying the board-host-range conjugative plasmid pAMβ1, transfer was observed in vitro from lactobacilli (L. plantarum, L. reuteri, L. fermentum, and L. murinus) to other commensal bacteria (Ouoba et al, 2008;Tannock, 1987;Gasson & Davies, 1980;Shrago et al, 1986;West & Warner, 1985). In the diassociated model pAMβ1 has been transferred from L. reuteri to Enterococcus faecalis (Morelli et al, 1988).…”

Section: Evidence Of Potential Horizontal Gene Transfer Of Probiotic mentioning

confidence: 99%

Assessment of Antibiotic Resistance in Probiotic Lactobacilli

Fukao¹,

Yajima²

2012

Antibiotic Resistant Bacteria - A Continuous Challenge in the New Millennium

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Section: Evidence Of Potential Horizontal Gene Transfer Of Probiotic mentioning

confidence: 99%

Assessment of Antibiotic Resistance in Probiotic Lactobacilli

Fukao¹,

Yajima²

2012

Antibiotic Resistant Bacteria - A Continuous Challenge in the New Millennium

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“…Other strains used in conjugation experiments were the previously described Lb. reuteri DSM 20016 and its pAM/?l-carrying derivative (Vescovo et al, 1983) (Gasson & Davies, 1980), the erythromycinsensitive, spectinomycin-resistant Lc. lactis subsp.…”

Section: Methodsmentioning

confidence: 99%

“…lactis subsp. lactis SH4160 (Gasson & Davies, 1980;Cocconcelli et al, 1985) and the plasmid-free E. faecalis JH2-2 were also used.…”

Section: Methodsmentioning

confidence: 99%

High frequency of conjugation in Lactobacillus mediated by an aggregation-promoting factor

Reniero

Cocconcelli

Bottazzi

et al. 1992

Journal of General Microbiology

125

109

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Lactobacillus plantarum strain 4B2, which exhibits a strong autoaggregating phenotype, receives the broad-hostrange plasmid pAMPl with conjugation efficiencies as high as transconjugants per donor using solid matings; broth matings also occur, but at low transfer frequencies. Filter-sterilized spent supernatant of this strain contains a 32 kDa protein that promotes aggregation, and consequently a high frequency of conjugation, in lactic acid bacteria containing a-l,2-glucose-substituted lipoteichoic or teichoic acids. It appears, therefore, that the substituted lipoteichoic or teichoic acids act as receptors for the aggregation-promoting protein.

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“…Total genomic DNA extraction. DNA was extracted according to a slightly modified version of the method described by Gasson & Davies (1980). Cells from 10ml cultures were collected, washed and treated with lysozyme (5 mg ml-l final concentration) for 15 min at 37 "C. The protoplasts were lysed with 20% SDS for 15 min.…”

Section: Methodsmentioning

confidence: 99%

Molecular identification of Lactobacillus hilgardii and genetic relatedness with Lactobacillus brevis

Sohier¹,

Coulon²,

Lonvaud-Funel³

1999

International Journal of Systematic and Evolutionary Microbiology

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Conventional phenotypic methods lead to misidentification of the lactic acid bacteria Lactobacillus hilgardii and Lactobacillus brevis. Random amplified polymorphic DNA (RAPD) and repetitive element PCR (REP-PCR) techniques were developed for a molecular study of these two species. The taxonomic relationships were confirmed by analysis of the ribosomal operon. Amplified DNA fragments were chosen to isolate L. hilgardii-specific probes. In addition to rapid molecular methods for identification of L. hilgardii, these results convincingly proved that some strains first identified as L. brevis must be reclassified as L. hilgardii. The data clearly showed that these molecular methods are more efficient than phenotypic or biochemical studies for bacterial identification at the species level.I

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CONJUGAL TRANSFER OF THE DRUG RESISTANCE PLASMID pAMÎ² IN THE LACTIC STREPTOCOCCI

Cited by 96 publications

References 9 publications

Assessment of Antibiotic Resistance in Probiotic Lactobacilli

Assessment of Antibiotic Resistance in Probiotic Lactobacilli

High frequency of conjugation in Lactobacillus mediated by an aggregation-promoting factor

Molecular identification of Lactobacillus hilgardii and genetic relatedness with Lactobacillus brevis

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