in Fruits and Vegetables: Antimicrobial Resistance, Biofilm, and Genomic Insights.

Background/objectives: is a foodborne pathogen that can infect both humans and animals and cause noninvasive gastrointestinal listeriosis or invasive listeriosis. The objectives of this study were to determine the genetic diversity of ; the genes associated with its resistance to antibiotics, benzalkonium chloride (BC), and cadmium chloride (CdCl); and its biofilm formation.

Methods: A total of 132 fresh fruits (44 samples) and vegetables (88 samples) were selected for this study.

Wet steam method for reducing attached cells of and on Hass avocado.

The consumption of avocados and their products has been linked to outbreaks of illness caused by and . These pathogens have been isolated from avocados collected from farms and markets. After contact with the avocado epicarp, the cells of and can become loosely attached (LA) by suspension in a film of water and attraction by electrostatic forces, or strongly attached (SA) by physical and irreversible attachment mechanisms.

Genomic Insights into Organic Acid Interventions for Biofilm Prevention and Control.

is an important pathogen that has been implicated in foodborne illness. The aim of the present study was to investigate the diversity of virulence factors associated with the mechanisms of pathogenicity, persistence, and formation of biofilm by tandem analysis of whole-genome sequencing. The lineages that presented (LmAV-2, LmAV-3, and LmAV-6) from Hass avocados were lineages I and II.

Genetic and compositional analysis of biofilm formed by isolated from food contact surfaces.

Introduction: is an important pathogen that can form biofilms on food contact surfaces (FCS) in the dairy industry, posing a serious food safety, and quality concern. Biofilm is a complex system, influenced by nutritional-related factors that regulate the synthesis of the components of the biofilm matrix. This study determines the prevalence of biofilm-associated genes and evaluates the development under different growth conditions and compositions of biofilms produced by .

Attachment and Survival of Salmonella enterica and Listeria monocytogenes on Tomatoes (Solanum lycopersicum) as Affected by Relative Humidity, Temperature, and Storage Time.

Abstract: Tomatoes (Solanum lycopersicum) are one of the most commonly consumed fruits worldwide. The fruit can become contaminated with Salmonella and Listeria monocytogenes at various stages of the production and supply chain, and these pathogens may survive under various storage conditions. The effects of relative humidity, temperature, and duration of storage on the attachment and survival of both pathogens on the surface of tomatoes were investigated.