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Rôle de la protéine associée au nucléoïde Fis dans le contrôle de la ...

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Figures et tab<strong>le</strong><strong>au</strong>x <strong>de</strong> <strong>la</strong> partie résultats :<br />

1 er artic<strong>le</strong> :<br />

Fig. 1. Behaviour of the E. chrysanthemi fis mutant.................................................................... 122<br />

Fig. 2. The induction of pectate lyase activity is <strong>de</strong><strong>la</strong>yed in the supernatant of the fis mutant<br />

growth medium. ........................................................................................................................... 123<br />

Fig. 3. Expression of the fliC, hrpN, prtC, sapA and cel5 genes in the parental strain and its fis<br />

<strong>de</strong>rivative...................................................................................................................................... 124<br />

Fig. 4. Band-shift assay for <strong>Fis</strong> binding on hrpN, fliC, cel5, sapA, prtC promoter regions. ....... 125<br />

Fig. 5. <strong>Fis</strong> interacts with the cel5 downstream promoter regions and inhibits transcript<br />

elongation..................................................................................................................................... 126<br />

Fig. 6. Comparison of viru<strong>le</strong>nce between E. chrysanthemi 3937 and its various <strong>de</strong>rivatives on<br />

chicory <strong>le</strong>aves and potato tubers. ................................................................................................. 127<br />

Fig. S1.The E. chrysanthemi fis operon. .................................................................................... 128<br />

Fig. S2. <strong>Fis</strong> specifically interacts with its own regu<strong>la</strong>tory regions and represses transcription<br />

initiation by σ 70 RNAP. ............................................................................................................... 129<br />

Fig. S3. The fis operon and promoter region. .............................................................................. 130<br />

Fig. S4. Growth phase-<strong>de</strong>pen<strong>de</strong>nt induction of pectate lyase activity in the culture supernatants of<br />

Erwinia chrysanthemi strains A350 (ps) and A4374 (fis). .......................................................... 131<br />

Tab<strong>le</strong> 1. Bacterial strains, p<strong>la</strong>smids, phages and oligonuc<strong>le</strong>oti<strong>de</strong>s used in this work. ................ 117-118<br />

2 ème artic<strong>le</strong> :<br />

Fig. 1. Time course induction of pectate lyase activity in the culture supernatants of Erwinia<br />

chrysanthemi strains A350 (ps) and A4374 (fis).......................................................................... 152<br />

Fig. 2. Bacterial-number-<strong>de</strong>pen<strong>de</strong>nt expression of pelA::uidA, pelB::uidA, pelD::uidA and<br />

pelE::uidA in Erwinia chrysanthemi strains A350 (ps) and A4374 (fis). ................................... 153<br />

Fig. 3. Quantification of the increase in pelD and pelE gene transcript accumu<strong>la</strong>tion in the fis<br />

background using real-time PCR analysis. .................................................................................. 154<br />

Fig. 4. Band-shift assay for <strong>Fis</strong>-DNA binding. ........................................................................... 155<br />

Fig. 5. DNase I footprinting of <strong>Fis</strong>, CRP, KdgR and RNAP binding at the pelB (A), pelD (B)<br />

and pelE (C) promoters. ............................................................................................................... 156-158<br />

Fig. 6. Sequence of the pelB, pelD and pelE promoters. ............................................................ 159<br />

Fig. 7. <strong>Fis</strong> and KdgR prevent transcription initiation at the pelD (A) and pelE (B) promoters. . 160<br />

Fig. 8. Bacterial-number-<strong>de</strong>pen<strong>de</strong>nt expression of pelB::uidA, pelD::uidA and pelE::uidA in<br />

Erwinia chrysanthemi parental strain and its fis, kdgR and kdgR-fis <strong>de</strong>rivatives. ....................... 161<br />

Fig. 9. Bacterial-number-<strong>de</strong>pen<strong>de</strong>nt expression of the Pel SA present both in the supernatants<br />

and in the cell pel<strong>le</strong>ts in Erwinia chrysanthemi parental strain A350 and its fis <strong>de</strong>rivative<br />

A4374. .......................................................................................................................................... 162<br />

Fig. S1. Time course expression of pelA::uidA, pelB::uidA, pelD::uidA and pelE::uidA in<br />

Erwinia chrysanthemi strains A350 (ps) and A4374 (fis). .......................................................... 163<br />

Fig. S2. Time course expression of pelB::uidA, pelD::uidA and pelE::uidA in Erwinia<br />

chrysanthemi parental strain and its fis, kdgR and kdgR-fis <strong>de</strong>rivatives. ..................................... 164<br />

Fig. S3. Time course expression of the Pel SA present both in the supernatants and in the cell<br />

pel<strong>le</strong>ts in Erwinia chrysanthemi parental strain A350 and its fis <strong>de</strong>rivative A4374. .................. 165<br />

Tab<strong>le</strong> 1. Bacterial strains, p<strong>la</strong>smids, phages and oligonuc<strong>le</strong>oti<strong>de</strong>s used in this work. ................ 148-149<br />

9

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