1887

Abstract

Unusual Gram-negative, catalase- and oxidase-positive, coccus-shaped bacteria isolated from the lungs of two lambs were characterized by phenotypic and molecular-genetic methods. Comparative 16S rRNA gene sequencing studies demonstrated that the unknown isolates were genealogically highly related to each other (99·8 % sequence similarity) and represent a novel subline within the genus . The unknown bacterium was phylogenetically closely related to, but distinct from, , , and . The novel isolates were readily distinguished from all other species and other Gram-negative, oxidase-positive bacteria usually responsible for lung infections in sheep by physiological and biochemical tests. Based on molecular-genetic and phenotypic evidence, it is proposed that the unknown isolates from lambs be classified as sp. nov. The type strain is strain S-606 (=CECT 5989 =CCUG 46240).

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2003-03-01
2019-10-24
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