Salmonella Typhimurium general virulence factors: A battle of David against Goliath?

López, Fabián E.; Pescaretti, María de Las Mercedes; Morero, Roberto D.; Delgado, Mònica

doi:10.1016/j.foodres.2011.08.009

Cited by 28 publications

(29 citation statements)

References 155 publications

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“…Mobile genetic elements are also responsible for pathogenesis in some foodborne pathogens such as Shiga toxin-producing Escherichia coli and Salmonella enterica serovar Typhimurium (Bolton, 2011;Lopez et al, 2012). Horizontal gene transfer (HGT) of virulence genes may allow previously nonpathogenic microbes to become pathogenic to humans.…”

Section: Mobile Genetic Elementsmentioning

confidence: 99%

ADSA Foundation Scholar Award: Trends in culture-independent methods for assessing dairy food quality and safety: Emerging metagenomic tools

Yeung¹

2012

Journal of Dairy Science

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Enhancing the quality and safety of dairy food is critical to maintaining the competitiveness of dairy products in the food and beverage market and in reinforcing consumer confidence in the dairy industry. Raw milk quality has a significant effect on finished product quality. Several microbial groups found in raw milk have been shown to adversely affect the shelf life of pasteurized milk. Current microbiological criteria used to define milk quality are based primarily on culture-dependent methods, some of which are perceived to lack the desired sensitivity and specificity. To supplement traditional methods, culture-independent methods are increasingly being used to identify specific species or microbial groups, and to detect indicator genes or proteins in raw milk or dairy products. Some molecular subtyping techniques have been developed to track the transmission of microbes in dairy environments. The burgeoning "-omics" technologies offer new and exciting opportunities to enhance our understanding of food quality and safety in relation to microbes. Metagenomics has the potential to characterize microbial diversity, detect nonculturable microbes, and identify unique sequences or other factors associated with dairy product quality and safety. In this review, fluid milk will be used as the primary example to examine the adequacy and validity of conventional methods, the current trend of culture-independent methods, and the potential applications of metagenomics in dairy food research.

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Section: Mobile Genetic Elementsmentioning

confidence: 99%

ADSA Foundation Scholar Award: Trends in culture-independent methods for assessing dairy food quality and safety: Emerging metagenomic tools

Yeung¹

2012

Journal of Dairy Science

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“…Consumption of water and food contaminated with Salmonella are the main routes of infection for gastrointestinal diseases (López et al, ). At the same time, this pathogen has been characterized by its prevalence and high distribution in the environment, especially in aquatic environments, particularly in the rainy season by the contaminated drag effect of organic matter (Simental and Martinez‐Urtaza, ; Estrada‐Acosta et al, ; Jimenez et al, ).…”

Section: Introductionmentioning

confidence: 99%

In vitro invasiveness and intracellular survival of Salmonella strains isolated from the aquatic environment

Ramírez

Burgueño‐Roman

Campo

et al. 2018

Water & Environment J

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Salmonella has a life cycle between the host and the external environment where it is exposed to stressful conditions that may affect its virulence. In this study, we compared the capability of two aquatic (S. Oranienburg S76 and Saintpaul S70) and one clinical isolates (S. Oranienburg S347) to adhere and invade epithelial cells, and to survive within macrophages. S76 and S70, were less adherent to Caco‐2 cells than S347, but they were more invasive. The intracellular survival and growth of S76 in macrophages was increased with time, while S347 showed the highest peak value and S70 survived at moderate levels. Induced cell death in infected epithelial cells and macrophages revealed no differences between all strains. In conclusion, the contrasting responses detected between environmental and clinical isolates could indicate the importance of the distinct adaptation conditions of the strains to the isolation environment that could differentially affect their interaction with the host.

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“…Previous published data have suggested that direct ingestion and contact are the most common routes of transmission for many zoonotic enteropathogens; however, inhalation of infectious particles should not be neglected. 1,2 Airborne transmission of microbes is not restricted to agents causing respiratory disease, because enteric and other pathogens can also be transmitted by this route. The potential airborne transmission of zoonotic enteric pathogens, such as Salmonella, has not been well studied, even after repeated efforts, with reports suggesting that airborne transmission of Salmonella is possible.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of respiratory route as a viable portal of entry for Salmonella in poultry

Kallapura¹,

Hernández-Velasco²,

Pumford³

et al. 2014

VMRR

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Salmonella Typhimurium general virulence factors: A battle of David against Goliath?

Cited by 28 publications

References 155 publications

ADSA Foundation Scholar Award: Trends in culture-independent methods for assessing dairy food quality and safety: Emerging metagenomic tools

ADSA Foundation Scholar Award: Trends in culture-independent methods for assessing dairy food quality and safety: Emerging metagenomic tools

In vitro invasiveness and intracellular survival of Salmonella strains isolated from the aquatic environment

Evaluation of respiratory route as a viable portal of entry for Salmonella in poultry

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