Complementation of representative Δ<i>asdA</i> mutant strains with <i>E. ictaluri asdA</i> gene.

<p>(<b>A–D</b>) Growth of representative Δ<i>asdA</i> mutant strains complemented with <i>asdA</i> from <i>E. ictaluri.</i> pEZ140 (SD-<i>asdA</i>); pEZ142 (P_asdA-<i>asdA</i>); The strains were grown in BHI at 28°C with agitation (180 r.p.m.); (<b>E</b>) Promoter region of <i>asdA</i> gene from <i>E. ictaluri</i> and representative strains.