Survival and transfer potential of Salmonella enterica serovar Typhimurium colonising polyethylene microplastics in contaminated agricultural soils

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(39), P. 51353 - 51363

Published: Aug. 7, 2024

Agricultural environments are becoming increasingly contaminated with plastic pollution. Plastics in the environment can also provide a unique habitat for microbial biofilm, termed 'plastisphere', which support persistence of human pathogens such as Salmonella. Human enteric Salmonella enterica serovar Typhimurium enter agricultural via flooding or from irrigation water. Using soil mesocosms we quantified ability S. to persist on microplastic beads two agriculturally relevant soils, under ambient and repeat flood scenarios. persisted plastisphere 35 days both podzol loamy soils; while during multiple events was able survive up 21 days. could dissociate migrate through leachate, importantly colonise new particles soil, suggesting that pollution soils aid facilitate further dissemination within environment. The potential increased survival food production due contamination poses significant public health risk, particularly potato root vegetable systems where there is direct contact crops.

Language: Английский

Lettuce immune responses and apoplastic metabolite profile contribute to reduced internal leaf colonization by human bacterial pathogens

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: May 14, 2025

Language: Английский

Bidirectional Comparisons Revealed Functional Patterns in Interaction between Salmonella enterica and Plants

Plants, Journal Year: 2024, Volume and Issue: 13(3), P. 414 - 414

Published: Jan. 30, 2024

Plants may harbor the human pathogen Salmonella enterica. Interactions between S. enterica and different plant species have been studied in individual reports. However, disparities arising from distinct experimental conditions render a meaningful comparison very difficult. This study explored interaction patterns strains including serovars Typhimurium 14028s LT2 serovar Senftenberg, plants (Arabidopsis, lettuce, tomato) one approach. Better persistence of was observed all tested plants, whereas resulting symptoms varied depending on species. Genes encoding pathogenesis-related proteins were upregulated inoculated with Salmonella. Furthermore, transcriptome tomato indicated dynamic responses to Salmonella, strong specific already 24 h after inoculation. By comparing publicly accessible Arabidopsis lettuce results generated similar manner, constants variables displayed. responded metabolic physiological adjustments, albeit variability reprogrammed orthologues. At same time, adapted leaf-mimicking media changes biosynthesis cellular components adjusted metabolism. provides insights into Salmonella-plant interaction, allowing for direct adaptations both organisms.

Language: Английский