Biocontrol of food-borne pathogens Listeria monocytogenes and Salmonella enterica serovar Poona on fresh-cut apples with naturally occurring bacterial and yeast antagonists

Article Abstract:

Fresh-cut apples contaminated with either Listeria monocytogenes or Salmonella enterica serovar Poona, using strains implicated in outbreaks, were treated with one of 17 antagonists originally selected for their ability to inhibit fungal post harvest decay on fruit. While most of the antagonists increased the growth of the food-borne pathogens, four of them proved effective in preventing the growth or survival of food-borne human pathogens on fresh-cut apple tissue.

Apples, Apple Orchards, Deciduous tree fruits, Causes of, Foodborne diseases, Contamination, Apple

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agr system of Listeria monocytogenes EGD-e: role in adherence and differential expression pattern

Article Abstract:

The function of agrA and agrD in the sessile growth of Listeria monocytogenes was examined. Results concluded that transcription of agr genes depended on the level of biofilm development and after initial attachment the transcript levels of agrB, agrD, and agrC decreased significantly.

Physiological aspects, Growth, Microbial mats, Gene expression, Company growth

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