FN Archimer Export Format
PT J
TI Inhibition mechanism of Listeria monocytogenes by a bioprotective bacteria Lactococcus piscium CNCM I-4031
BT 
AF SARAOUI, Taous
   FALL, Papa-Abdoulaye
   LEROI, Francoise
   ANTIGNAC, Jean-Philippe
   CHEREAU, Sylvain
   PILET, Marie France
AS 1:1,2,4;2:1,2,4;3:1;4:3;5:3;6:2,4;
FF 1:;2:PDG-RBE-BRM-STBM;3:PDG-RBE-BRM-LEMMMB;4:;5:;6:;
C1 IFREMER, Lab Ecosyst Microbiens & Mol Marines Biotechnol E, F-44311 Nantes 03, France.
   LUNAM Univ, Oniris, Secalim UMR 1014, F-44307 Nantes, France.
   LUNAM Univ, Oniris, USC INRA 1329, Lab Etud Residus & Contaminants Aliments LABERCA, F-44307 Nantes, France.
   INRA, F-44307 Nantes, France.
C2 IFREMER, FRANCE
   ONIRIS, FRANCE
   UNIV NANTES, FRANCE
   INRA, FRANCE
SI NANTES
SE PDG-RBE-BRM-STBM
   PDG-RBE-BRM-LEMMMB
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
   copubli-univ-france
IF 3.759
TC 53
UR https://archimer.ifremer.fr/doc/00250/36123/34677.pdf
LA English
DT Article
DE ;Listeria monocytogenes;Lactococcus piscium;Nutrients competition;Cellular contact;Chemically defined medium;Bacterial interaction
AB Listeria monocytogenes is a pathogenic Gram positive bacterium and the etiologic agent of listeriosis, a severe food-borne disease. Lactococcus piscium CNCM I-4031 has the capacity to prevent the growth of L. monocytogenes in contaminated peeled and cooked shrimp. To investigate the inhibititory mechanism, a chemically defined medium (MSMA) based on shrimp composition and reproducing the inhibition observed in shrimp was developed. In co-culture at 26°C, L. monocytogenes was reduced by 3-4 log CFU g-1 after 24 h. We have demonstrated that the inhibition was not due to secretion of extracellular antimicrobial compounds as bacteriocins, organic acids and hydrogen peroxide. Global metabolomic fingerprints of these strains in pure culture were assessed by liquid chromatography coupled with high resolution mass spectrometry. Consumption of glucose, amino-acids, vitamins, nitrogen bases, iron and magnesium was measured and competition for some molecules could be hypothesized. However, after 24 h of co-culture, when inhibition of L. monocytogenes occurred, supplementation of the medium with these compounds did not restore its growth. The inhibition was observed in co-culture but not in diffusion chamber when species were separated by a filter membrane. Taken together, these data indicate that the inhibition mechanism of L. monocytogenes by L. piscium is cell-to-cell contact-dependent.
PY 2016
PD FEB
SO Food Microbiology
SN 0740-0020
PU Academic Press Ltd- Elsevier Science Ltd
VL 53
UT 000366060600009
BP 70
EP 78
DI 10.1016/j.fm.2015.01.002
ID 36123
ER

EF