title: Interaction of Salmonella enterica subspecies enterica serovar Typhimurium and mung bean (Phaseolus aureus) plants.
abstract: The effect of Salmonella enterica subspecies enterica serovar Typhimurium, a zoonotic serovar, on mung bean (Phaseolus aureus) cultivar Pant Mung-3 plants was studied. Inoculation of mung bean seeds with Salmonella Typhimurium (7.2 x 10(5) CFU/ml) reduced sprouting rate (P < 0.07). This effect was more pronounced at higher levels of contamination. In the soil inoculated with Salmonella Typhimurium (7.2 x 10(6) CFU/g), germination was retarded and the number of defective sprouts was also significantly higher (P < 0.002). Salmonella Typhimurium grew inside germinating seeds and plant tissues and persisted in seedlings, adult plants, and harvested seedlings dried and stored at room temperature (30 degrees C) up to 45 days. Phaseolus aureus plants grown in sterile soil was resistant to Salmonella Typhimurium infection at 15 days of age and cleared Salmonella from all the aerial parts within 3 h of infection. However, Salmonella Typhimurium could be reisolated from the basal area of the stem and from soil even after 45 days of exposure to the pathogen.
authors.affiliation: National Salmonella Centre (Vet), Indian Veterinary Research Institute, Izatnagar 243 122, India. brs1762@ivri.up.nic.in
authors.forename: Bhoj Raj
authors.initials: BR
authors.lastname: Singh
authors.forename: Mudit
authors.initials: M
authors.lastname: Chandra
authors.forename: Ravikant
authors.initials: R
authors.lastname: Agarwal
mesh_terms: D015169:Colony Count, Microbial; D003257:Consumer Product Safety; D007887:Fabaceae / Q000254:growth & development / Q000382:microbiology / Q000502:physiology*; D005506:Food Contamination / Q000032:analysis; D018525:Germination / Q000502:physiology*; D006801:Humans; D012478:Salmonella Food Poisoning / Q000517:prevention & control; D012486:Salmonella typhimurium / Q000187:drug effects / Q000254:growth & development / Q000472:pathogenicity*; D012639:Seeds / Q000254:growth & development* / Q000382:microbiology*; D012988:Soil Microbiology