Genus Arcanobacterium
Collins, Jones and Schofield, 1983
Gram-stain-positive, non-acid fast, non-motile, slender, irregular,
bacillary forms; many cells are arranged in V-formations. In prolonged
incubation become granular and segmented so that they resemble
small and irregular cocci. Endospores are not formed. Facultatively
anaerobic. Growth is enhanced by blood or serum. Some species are
recovered from human clinical material. All medical arcanobacteria
are catalase-negative. Nitrate reduction is usually negative.
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NOTES

Actinomyces gerencseriae Johnson et al.
1990 was previously known as
Actinomyces israelii serovar II.

All members of the Genus Falcivibrio were
moved to Genus Mobiluncus.
LEGEND
* marked species are not included
in ABIS biochemical database
ABIS online
ADVANCED BACTERIAL
IDENTIFICATION
SOFTWARE
Family Actinomycetaceae
Buchanan 1918
Genus Actinobaculum
Lawson et al. 1997
Actinobaculum massiliense
Actinobaculum suis
Genus Actinomyces
Harz 1877
Actinomyces bernardiae (moved to Trueperella)
Actinomyces bovis
Actinomyces bowdenii
Actinomyces canis
Actinomyces cardiffensis
Actinomyces catuli
Actinomyces coleocanis
Actinomyces dentalis
Actinomyces denticolens
Actinomyces europaeus
Actinomyces funkei
Actinomyces georgiae
Actinomyces gerencseriae
Actinomyces graevenitzii
Actinomyces haliotis
Actinomyces hominis
Actinomyces hongkongensis
Actinomyces hordeovulneris
Actinomyces howellii
Actinomyces humiferus (moved to Cellulomonas humilata)
Actinomyces hyovaginalis
Actinomyces israelii
Actinomyces johnsonii
Actinomyces marimammalium
Actinomyces massiliensis
Actinomyces meyeri
Actinomyces naeslundii
Actinomyces nasicola
Actinomyces naturae
Actinomyces neuii subsp. anitratus
Actinomyces neuii subsp. neuii
Actinomyces odontolyticus
Actinomyces oricola
Actinomyces oris
Actinomyces pyogenes (moved to Trueperella)
Actinomyces radicidentis
Actinomyces radingae
Actinomyces ruminicola
Actinomyces slackii
Actinomyces suimastitidis
Actinomyces suis (moved to Actinobaculum)
Actinomyces timonensis
Actinomyces turicensis
Actinomyces urogenitalis
Actinomyces vaccimaxillae
Actinomyces viscosus
Actinomyces weissii
Genus Actinotignum
Yassin et al. 2015
Actinotignum sanguinis
Actinotignum schaalii
Actinotignum urinale
Genus Flaviflexus
Du et al. 2013
Flaviflexus huanghaiensis
Flaviflexus salsibiostraticola
Genus Mobiluncus
Spiegel and Roberts 1984
Mobiluncus curtisii
Mobiluncus mulieris
Genus Trueperella
Yassin et al. 2011
Genus Varibaculum
Hall et al. 2003
Varibaculum anthropi
Varibaculum cambriense
Gram-positive / -variable, straight or slightly curved, predominantly
diphtheroidal, nonmotile rods, some of which tend to form branched
filaments of up to 1 mm in diameter. Some species are coccoid.
Endospores are not formed. Non-acid fast. Facultative anaerobes, some
are anaerobic. Catalase and nitrate reduction are variable. Indole is
not produced. Some species are greening the blood agar.