[1] Inst Pasteur, Unite Interact Bacteries Cellules, F-75015 Paris, France
[2] Inst Natl Sante & Rech Med, U604, F-75015 Paris, France
[3] INRA, USC2020, F-75015 Paris, France
[4] Ctr Natl Rech Sci, UMR 5236, CPBS, CNRS, F-34293 Montpellier, France
[5] Univ Montpellier I, F-34293 Montpellier, France
[6] Univ Montpellier 2, F-34293 Montpellier, France