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. 2017 Sep 1;8:1671. doi: 10.3389/fmicb.2017.01671

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Copyright © 2017 Payelleville, Lanois, Gislard, Dubois, Roche, Cruveiller, Givaudan and Brillard.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Infection of Spodoptera littoralis larvae by P. luminescens overexpressing dam and the control strain. Proportion of survival of S. littoralis after injection of 10⁴ CFU of P. luminescens overexpressing dam (TT01 + pBB-Dam, green) or carrying the vector control (TT01 + pBBR1-MCS5, blue). Graph represents the results from 4 to 5 independent experiments (with 20 insect larvae per experiment). The survival of 50% of the infested larvae is represented by the dotted line. The time needed to kill 50% of infected larvae (LT₅₀) was significantly different between the two strains (p < 0.001, Wilcoxon test).