Résistance à l'ozone chez Escherichia coli

Hamelin, Claude; Chung, Young Sup

doi:10.1007/bf00268630

Cited by 16 publications

(3 citation statements)

References 20 publications

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“…The data indicate that the strains considered to be mutants in the lon gene are more sensitive to ozone than lon+ strain MQ259. This latter strain resembles E. coli B/r in survival after ozone treatment, whereas lon mutants are relatively more sensitive to this agent and are similar to uvrA strains (19,20). It seems likely that ozone sensitivity, radiosensitivity, and mucoidy are pleiotropic properties of the lon gene.…”

Section: Resultsmentioning

confidence: 91%

“…The source of ozone was a commercial ozonizer (Sander Aquatics, model S-III). Ozone concentration was measured either by a microcoulomb ozone sensor (Mast Development Co., model 724-2M) or a Draeger 21/31 gas detector equipped with 0.05/a ozone detec- 19 tor tubes (19)(20)(21). Samples removed from the bacterial suspension were serially diluted and spread on supplemented minimal agar.…”

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confidence: 99%

“…Ozone sensitivity. The procedure for testing ozone sensitivity was described in detail previously (19).…”

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confidence: 99%

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Characterization of mucoid mutants of Escherichia coli K-12 isolated after exposure to ozone

Hamelin¹,

Chung²

1975

J Bacteriol

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Seventy mucoid mutants retaining the phenotypic properties of the ultraviolet-induced lon strains of Escherichia coli K-12 were isolated after treatment of strain MQ259 (lon+) with ozone. They produce mucoid colonies at 37 C on minimal agar, are abnormally sensitive to radiation, and tend to grow in long aseptate filaments after irradiation with ultraviolet light. Results indicate also that ozone sensitivity, radiosensitivity, and mucoidy are pleiotropic properties of the lon gene.

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Section: Resultsmentioning

confidence: 91%

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confidence: 99%

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Characterization of mucoid mutants of Escherichia coli K-12 isolated after exposure to ozone

Hamelin¹,

Chung²

1975

J Bacteriol

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Rapid test for assay of ozone sensitivity in Escherichia coli

Hamelin

Chung

1976

Molec. Gen. Genet.

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A rapid test devised for assay of ozone sensitivity in Escherichia coli is described. The detection of new mutants, either more resistant or more sensitive than wild type strain to ozone, and the genetic analysis of ozone recombinants are now possible. Results confirm that ozone resistance is probably involved with DNA repair mechanism; and show that ozone and ultraviolet light inhibit the cell division capacity of lon mutant in a similar way.

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Variations in ozone-sensitivity in relation to cell cycle and ploidy in Saccharomyces cerevisiae

Dubeau

Chung

1984

Mol Gen Genet

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Résistance à l'ozone chez Escherichia coli

Cited by 16 publications

References 20 publications

Characterization of mucoid mutants of Escherichia coli K-12 isolated after exposure to ozone

Characterization of mucoid mutants of Escherichia coli K-12 isolated after exposure to ozone

Rapid test for assay of ozone sensitivity in Escherichia coli

Variations in ozone-sensitivity in relation to cell cycle and ploidy in Saccharomyces cerevisiae

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