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Weather stressors correlate with *Escherichia coli* and *Salmonella enterica* persister formation rates in the phyllosphere: a mathematical modeling study

Food Science and Technology

Weather stressors correlate with *Escherichia coli* and *Salmonella enterica* persister formation rates in the phyllosphere: a mathematical modeling study

M. T. Brandl, R. Ivanek, et al.

This fascinating study explores how enteric pathogens like *E. coli* and *S. enterica* can enter a persister state amid varying environmental conditions. Using a mathematical model, researchers predicted how these pathogens survive and thrive on leafy greens, revealing intriguing correlations with solar radiation and other weather factors. Discover the groundbreaking findings from experts like Maria T. Brandl and others!

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Playback language: English
Abstract
Enteric pathogens can enter a persister state, surviving antibiotic and physicochemical stresses. This study used a mathematical model to predict persister cell switch rates in the phyllosphere of lettuce and spinach, using field study data from the USA and Spain. The model accurately depicted biphasic bacterial decay. Predicted *E. coli* persister switch rates correlated positively with solar radiation and negatively with wind velocity. *S. enterica* rates correlated positively with solar radiation but negatively with air temperature, relative humidity, and dew point. These findings suggest specific environmental factors enrich for dormant bacterial cells on plants.
Publisher
ISME Communications
Published On
Sep 27, 2022
Authors
Maria T. Brandl, Renata Ivanek, Nerion Zekaj, Alexandra Belias, Martin Wiedmann, Trevor V. Suslow, Ana Allende, Daniel S. Munther
Tags
enteric pathogens
persister state
E. coli
S. enterica
phyllosphere
environmental factors
bacterial decay

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