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Review

Impact of the Resistance Responses to Stress Conditions Encountered in Food and Food Processing Environments on the Virulence and Growth Fitness of Non-Typhoidal Salmonellae

Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2-(Universidad de Zaragoza-CITA), 50013 Zaragoza, Spain
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Author to whom correspondence should be addressed.
Foods 2021, 10(3), 617; https://doi.org/10.3390/foods10030617
Submission received: 5 February 2021 / Revised: 24 February 2021 / Accepted: 10 March 2021 / Published: 14 March 2021

Abstract

The success of Salmonella as a foodborne pathogen can probably be attributed to two major features: its remarkable genetic diversity and its extraordinary ability to adapt. Salmonella cells can survive in harsh environments, successfully compete for nutrients, and cause disease once inside the host. Furthermore, they are capable of rapidly reprogramming their metabolism, evolving in a short time from a stress-resistance mode to a growth or virulent mode, or even to express stress resistance and virulence factors at the same time if needed, thanks to a complex and fine-tuned regulatory network. It is nevertheless generally acknowledged that the development of stress resistance usually has a fitness cost for bacterial cells and that induction of stress resistance responses to certain agents can trigger changes in Salmonella virulence. In this review, we summarize and discuss current knowledge concerning the effects that the development of resistance responses to stress conditions encountered in food and food processing environments (including acid, osmotic and oxidative stress, starvation, modified atmospheres, detergents and disinfectants, chilling, heat, and non-thermal technologies) exerts on different aspects of the physiology of non-typhoidal Salmonellae, with special emphasis on virulence and growth fitness.
Keywords: Salmonella; foodborne pathogen; food preservation; stress resistance responses Salmonella; foodborne pathogen; food preservation; stress resistance responses

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MDPI and ACS Style

Guillén, S.; Nadal, L.; Álvarez, I.; Mañas, P.; Cebrián, G. Impact of the Resistance Responses to Stress Conditions Encountered in Food and Food Processing Environments on the Virulence and Growth Fitness of Non-Typhoidal Salmonellae. Foods 2021, 10, 617. https://doi.org/10.3390/foods10030617

AMA Style

Guillén S, Nadal L, Álvarez I, Mañas P, Cebrián G. Impact of the Resistance Responses to Stress Conditions Encountered in Food and Food Processing Environments on the Virulence and Growth Fitness of Non-Typhoidal Salmonellae. Foods. 2021; 10(3):617. https://doi.org/10.3390/foods10030617

Chicago/Turabian Style

Guillén, Silvia, Laura Nadal, Ignacio Álvarez, Pilar Mañas, and Guillermo Cebrián. 2021. "Impact of the Resistance Responses to Stress Conditions Encountered in Food and Food Processing Environments on the Virulence and Growth Fitness of Non-Typhoidal Salmonellae" Foods 10, no. 3: 617. https://doi.org/10.3390/foods10030617

APA Style

Guillén, S., Nadal, L., Álvarez, I., Mañas, P., & Cebrián, G. (2021). Impact of the Resistance Responses to Stress Conditions Encountered in Food and Food Processing Environments on the Virulence and Growth Fitness of Non-Typhoidal Salmonellae. Foods, 10(3), 617. https://doi.org/10.3390/foods10030617

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