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Proprietes antibacteriennes et genotoxiques de 33 mycotoxines

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Abstract

Most of the 33 fungal metabolites tested provoke:

  1. 1.

    Bacterial growth inhibition of Bacillus thuringiensis similar to lethal effect of antibiotics.

  2. 2.

    Positive response in the ‘Rec’ assay using strains of Bacillus subtilis; this fact shows that these toxins are DNA modifying agents.

  3. 3.

    Enlargement of cell volume in the first bacteria species; this cell-abnormality induction resembles those obtained with mitomycin C.

Correlation between elongation of cells (filamentation) and in vivo carcinogenicity of mycotoxins is discussed.

The filamentation should be an expression of a perturbated DNA replication (S.O.S.-error prone repair) as the consequence of DNA damages induced by genotoxic agents (i.e. carcinogens).

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Boutibonnes, P., Auffray, Y., Malherbe, C. et al. Proprietes antibacteriennes et genotoxiques de 33 mycotoxines. Mycopathologia 87, 43–49 (1984). https://doi.org/10.1007/BF00436626

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