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Article

Comparison of Campylobacter jejuni Slaughterhouse and Surface-Water Isolates Indicates Better Adaptation of Slaughterhouse Isolates to the Chicken Host Environment

1
Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
2
Faculty of Health Sciences, University of Primorska, Polje 42, 6310 Izola, Slovenia
*
Author to whom correspondence should be addressed.
Microorganisms 2020, 8(11), 1693; https://doi.org/10.3390/microorganisms8111693
Received: 13 October 2020 / Revised: 29 October 2020 / Accepted: 30 October 2020 / Published: 30 October 2020
(This article belongs to the Special Issue Foodborne Pathogen Campylobacter)
Campylobacter jejuni is an emerging food-borne pathogen that poses a high risk to human health. Knowledge of the strain source can contribute significantly to an understanding of this pathogen, and can lead to improved control measures in the food-processing industry. In this study, slaughterhouse and surface-water isolates of C. jejuni were characterized and compared in terms of their antimicrobial resistance profiles and adhesion to stainless steel and chicken skin. Resistance of C. jejuni biofilm cells to benzalkonium chloride and Satureja montana ethanolic extract was also tested. The data show that the slaughterhouse isolates are more resistant to ciprofloxacin, and adhere better to stainless steel at 42 °C, and at 37 °C in 50% chicken juice. Additionally, biofilm cells of the isolate with the greatest adhesion potential (C. jejuni S6) were harvested and tested for resistance to S. montana ethanolic extract, benzalkonium chloride, and erythromycin; and for efflux-pump activity, as compared to their planktonic cells. The biofilm cells showed increased resistance to both S. montana ethanolic extract and erythromycin, and increased efflux-pump activity. These data indicate adaptation of C. jejuni slaughterhouse isolates to the chicken host, as well as increased biofilm cell resistance due to increased efflux-pump activity. View Full-Text
Keywords: Campylobacter jejuni; slaughterhouse isolates; surface-water isolates; biofilm resistance; efflux pump activity Campylobacter jejuni; slaughterhouse isolates; surface-water isolates; biofilm resistance; efflux pump activity
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MDPI and ACS Style

Šimunović, K.; Zajkoska, S.; Bezek, K.; Klančnik, A.; Barlič Maganja, D.; Smole Možina, S. Comparison of Campylobacter jejuni Slaughterhouse and Surface-Water Isolates Indicates Better Adaptation of Slaughterhouse Isolates to the Chicken Host Environment. Microorganisms 2020, 8, 1693. https://doi.org/10.3390/microorganisms8111693

AMA Style

Šimunović K, Zajkoska S, Bezek K, Klančnik A, Barlič Maganja D, Smole Možina S. Comparison of Campylobacter jejuni Slaughterhouse and Surface-Water Isolates Indicates Better Adaptation of Slaughterhouse Isolates to the Chicken Host Environment. Microorganisms. 2020; 8(11):1693. https://doi.org/10.3390/microorganisms8111693

Chicago/Turabian Style

Šimunović, Katarina, Sandra Zajkoska, Katja Bezek, Anja Klančnik, Darja Barlič Maganja, and Sonja Smole Možina. 2020. "Comparison of Campylobacter jejuni Slaughterhouse and Surface-Water Isolates Indicates Better Adaptation of Slaughterhouse Isolates to the Chicken Host Environment" Microorganisms 8, no. 11: 1693. https://doi.org/10.3390/microorganisms8111693

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