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. 1990 Jun;273(2):143-9.
doi: 10.1016/s0934-8840(11)80241-0.

A group of indole-negative bovine strains with high deoxyribonucleic acid homology to Pasteurella multocida

K Sachse  1 , D Schimmel, C Grajetzki, I Stein
Affiliations

A group of indole-negative bovine strains with high deoxyribonucleic acid homology to Pasteurella multocida

K Sachse et al. Zentralbl Bakteriol. 1990 Jun.

Abstract

A group of nine bovine Pasteurella strains not producing indole were investigated for their taxonomic relationships with Pasteurella multocida, Pasteurella haemolytica and Pasteurella canis. For all strains, DNA-DNA hybridization has revealed a high genetic relatedness at the species level to P. multocida and significantly lower homologies of only 18-41% towards P. haemolytica and 11-15% towards P. canis. Guanine plus cytosine values of 38.0 to 42.1 mol% and several phenotypic characters have been found to be different from the established pattern for P. multocida subspecies. It is suggested that the strains represent a new taxon, possibly another P. multocida subspecies.

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