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161<br />

Chapitre 2 : Résultats et discussion<br />

Tableau 39. Taux d’hybridation ADN-ADN de la souche B2 et espèces proches.<br />

Souches Absorbance ADN (pg) S = s × 5<br />

D = d × 2<br />

B2 1s 0,545 177 885<br />

B2 1d 0,620 552 1104<br />

B2 2s 0,537 137 685<br />

B2 2d 0,644 672 1344<br />

1 1s 0,635 627 3135<br />

1 1d 0,551 206 414<br />

1 2s 0,686 882 4410<br />

1 2d 0,542 162 324<br />

2 1s 0,570 302 1510<br />

2 1d 0,589 397 794<br />

2 2s 0,558 242 1210<br />

2 2d 0,550 202 404<br />

3 1s 0,605 477 2385<br />

3 1d 0,575 327 654<br />

3 2s 0,561 257 1285<br />

3 2d 0,543 167 334<br />

4 1s 0,619 547 2735<br />

4 1d 0,552 212 424<br />

4 2s 0,637 637 3185<br />

4 2d 0,565 277 554<br />

S + D BR (%) RBR (%)<br />

1989 55,50<br />

2029 66,24 100<br />

3549 11,66 17,60<br />

4734 6,84 10,32<br />

2304 34,52 52,11<br />

1614 25,03 37,78<br />

3039 25,03 32,48<br />

1619 20,63 31,14<br />

3359 13,42 20,25<br />

3739 14,81 22,35<br />

1, Pseudomonas halophila DSM 3050 T ; 2, Salicola marasensis CECT 7107 T ; 3, Halovibrio<br />

denitrificans DSM 15503 T ; 4, Halospina denitrificans DSM 15505 T . s, simple brin ; d, double<br />

brin.<br />

BR % = (D/ S + D) × 100 et RBR % = valeur × 100/BR %.

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