Review. 'L'Alouette' et 'Pauvre Bitos'. John, S. Beynon

Howarth, W. D.

doi:10.1093/fs/40.1.104-a

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“…Plasmids which enhance UV-resistance in wildtype cells have been described mainly in Gramnegative bacteria. Plasmids Coil [1,2], R46, R-Utrecht and pKM101 from Salmonella and Escherichia coli [3][4][5][6] in particular have been studied. R factors and sex factors were also found to protect Pseudomonas aeruginosa against the lethal effect of UV-irradiation [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Plasmid-mediated UV-protection inStreptococcus lactis

Chopin

Moillo-Batt

Rouault

1985

FEMS Microbiology Letters

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Streptococcus lactis strain IL594 contains 9 plasmids, designated pIL1 to pIL9. On the basis of protoplast‐induced curing experiments we showed that derivatives containing pIL7 (31 kb) were resistant to UV‐irradiation while derivatives lacking pIL7 were sensitive. The pIL7‐determined UV‐protection was confirmed by cotransfer of the plasmid and of the character into a plasmid‐free derivative of S. lactis IL594. Moreover, prophage induction required higher UV‐fluence in this derivative carrying pIL7 than in the plasmid‐free strain. This is the first report of a plasmid‐mediated UV‐protection in group N streptococci.

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