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Article Dans Une Revue PLoS ONE Année : 2011

Changes in gene expression during adaptation of Listeria monocytogenes to the soil environment

Pascal Piveteau
Barbara Pivato
Dominique D. Garmyn
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Alain Hartmann

Résumé

Listeria monocytogenes is a ubiquitous opportunistic pathogen responsible for listeriosis. In order to study the processes underlying its ability to adapt to the soil environment, whole-genome arrays were used to analyse transcriptome modifications 15 minutes, 30 minutes and 18 h after inoculation of L. monocytogenes EGD-e in soil extracts. Growth was observed within the first day of incubation and large numbers were still detected in soil extract and soil microcosms one year after the start of the experiment. Major transcriptional reprofiling was observed. Nutrient acquisition mechanisms (phosphoenolpyruvate-dependent phosphotransferase systems and ABC transporters) and enzymes involved in catabolism of specific carbohydrates (b-glucosidases; chitinases) were prevalent. This is consistent with the overrepresentation of the CodY regulon that suggests that in a nutrient depleted environment, L. monocytogenes recruits its extensive repertoire of transporters to acquire a range of substrates for energy production.
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Dates et versions

hal-02645459 , version 1 (29-05-2020)

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Citer

Pascal Piveteau, Géraldine G. Depret, Barbara Pivato, Dominique D. Garmyn, Alain Hartmann. Changes in gene expression during adaptation of Listeria monocytogenes to the soil environment. PLoS ONE, 2011, 6 (9), pp.e24881 ; 1-10. ⟨10.1371/journal.pone.0024881⟩. ⟨hal-02645459⟩
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