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UV-C pre-adaptation of Salmonella: effect on cell morphology and membrane fatty acids composition

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Abstract

The present study was carried out to evaluate the effects of ultraviolet radiations (UV-C) on the fatty acids composition of three serovars of Salmonella: S. typhimurium, S. hadar and S. zanzibar. Results obtained show that UV-C treatment increases significantly (P ≤ 0.05) the percentage of cyclic fatty acids. The atomic force microscopy was used to study the morphology and cell surface of irradiated strains. Results show that UV-C rays induce morphological changes and alter the bacterial cell surface (presence of grooves and irregularities).

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Authors and Affiliations

  1. Laboratoire de Traitement des Eaux Usées, Centre des Recherches et des Technologies des Eaux (CERTE), Technopole Borj Cédria, BP 273, 8020, Soliman, Tunisia

    Lobna Maâlej, Abdelwaheb Chatti, Sana Khefacha, Kloula Salma & Abdennaceur Hassen

  2. Department of Food Science, Alma Mater Studiorum, University of Bologna, Via Fanin 46, 40127, Bologna, Italy

    Gottardi David, Lucia Vannini & Guerzoni Maria Elizabetta

Authors
  1. Lobna Maâlej
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  2. Abdelwaheb Chatti
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  3. Sana Khefacha
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  4. Kloula Salma
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  5. Gottardi David
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  6. Lucia Vannini
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  7. Guerzoni Maria Elizabetta
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  8. Abdennaceur Hassen
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Correspondence to Abdelwaheb Chatti.

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Lobna Maâlej and Abdelwaheb Chatti have contributed equally in this work.

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Maâlej, L., Chatti, A., Khefacha, S. et al. UV-C pre-adaptation of Salmonella: effect on cell morphology and membrane fatty acids composition. World J Microbiol Biotechnol 30, 925–930 (2014). https://doi.org/10.1007/s11274-013-1510-2

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  • DOI: https://doi.org/10.1007/s11274-013-1510-2

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