Studies on expression of different virulence genes of Pasteurella multocida
2017
AKONDI, SIVARAMAKRISHNA | ARORA, A K | SHARMA, N S
Pasteurella multocida is the causative agent of a wide range of diseases in avian and mammalian hosts. Different adhesin and membrane proteins play role in the pathogenesis of the disease. In the present study, the relative expression of 5 different virulence genes (plpE, ptfA, tbpA, hgbA and fhaB1) from Pasteurella multocida B:2 grown in iron rich and iron limiting media was measured using real time PCR employing SYBR green chemistry. The expression of tbpA, hgbA, plpE and fhaB1 was found to be significantly upregulated by 4, 2.3, 1.3, 2.3 folds, respectively, under iron limiting conditions. In contrast, the expression of gene ptfA was significantly down regulated (0.4 fold) as compared to organism grown in normal medium.
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