DNA-DNA hybridization experiments and comparative 16S rDNA sequence analysi
s revealed that six isolates from purulent joint and lung infections in cal
ves, from a lung lesion in a sheep, and from a joint infection of a pig rep
resented a novel species belonging to the genus Globicatella. Whole-cell pr
otein electrophoresis and biochemical activity testing revealed that the is
olates formed a homogeneous group differing from Globicatella sanguinis, th
e only species of this genus described to date. These animal isolates were
classified as Globicatella sulfidifaciens sp. nov. with LMG 18844(T) (= CCU
G 44365(T)) isolated from the lung of a calf, as the type strain. A detaile
d description of its phenotypic characteristics is presented. Hydrogen sulp
hide production was found to be a very useful diagnostic feature.