Cross Index	Exiguobacterium aurantiacum
SuperSet	Prokaryote, Eubacteria Irregular, Nonsporing Gram-Positive Rods
Compare	Acetobacterium Acetogenium kivui, Actinomyces Aeromicrobium erythreum Agromyces ramosus Arachnia propionica, Arcanobacterium haemolyticum, Arthrobacter, Aureobacterium, Bifidobacterium, Brachybacterium faecium, Brevibacterium, Butyrivibrio, Caseobacter polymorphus, Cellulomonas ,Clavibacter, Coriobacterium glomerans, Corynebacterium, Curtobacterium, Dermobacter hominus, Eubacterium, Exigouibacterium aurantiacum, Falcivibrio, Gardnerella, Jonsia denitrificans, Lachnospira multiparus, Microbacterium, Mobiluncus, Pimelobacter, Proprionibacterium, Rarobacter faecitabidus , Rothia dentocariosa, Rubrobacter radiotolerans, Sphaerobacter thermophilus , Terrabacter tumescens, Thermoanaerobacter ethanolicus, Thermoanaerobium brockii
Contrast	Archaea
Subset

 

Morphology

Exiguobacterium aurantiacum

CELLULAR

Staining	Gram positive not acid fast
Morphology	rods in young cultures beomce occoid in old cultures
Motility	motile by peritrichous flagella
Specialized structures	no spores

Division

COLONIAL

Solid surface

flat pale orange colonies on nutrient agr, the pigment does not diffuse

Liquid

 

Growth Parameters

Exiguobacterium aurantiacum

PHYSIOLOGICAL

Tropism	chemoorganotropic
Oxygen	facultative anaerobe
pH	alkalophilic cells grow at pH 6.5-11.5
Temperature	optimum 37 oC
Requirements
Products	fermentative metaolism giving acid from glucose, sucrose, galactose, and other carbohydrates produces lactate, acetate and formate. Starch, casein and gelatine are hydrolysed
Enzymes	catalase positive, oxidase negative, nitrate is reduced
Unique features

ENVIRONMENTAL

Habitat	isolated from potato processing effluent
Lifestyle
Pathogenicity

Distribution

 

Genome

Exiguobacterium aurantiacum

G+C Mol %

 

Reference

Exiguobacterium aurantiacum

First citation	Collins et al 1983 J. Gen Microbiol 129: 2037-2042
The Prokaryotes	p
Bergey's Determinative	p 577

References