Nocardia
SuperSet ,Prokaryote, Eubacteria, Actinomycetes, Nocardioform Actinomycetes
Compare Actinobispora yunnanensis, Actinokineospora riparia , Actinopolyspora, Amycolata, Amycolatopsis Gordona, Jonesia denitrificans, Kibdelosporangium, Nocardia, Nocardioides,Oerskovia , Promicromonospora Pseudoamycolata halophobica, Pseudonocardia Rhodococcus Saccharomonospora Saccharopolyspora Terrabacter tumescens, Tsukamurella
Contrast Archaea
Subset  

 

Morphology Nocardia
CELLULAR  
Staining Gram-positive to Gram-variable. Some strains partially acid fast at some stage of growth.
Morphology Rudimentary to extensively branched vegetative hyphae, 0.5- 1.2 u in diameter, growing on the surface of, and penetrating, agar media, often fragmenting in situ or on mechanical disruption into bacteroid, rod-shaped to coccoid

Aerial hyphae, at times visible only microscopically, almost always formed.
Motility Nonmotile.
Specialized structures Short to long chains of well to poorly formed conidia may occasionally be found on the aerial hyphae and more rarely on both aerial and vegetative hyphae..

No endospores, sporangia, sclerotia, or synnemata found
Division  
COLONIAL  
Solid surface  
Liquid  

 

Growth Parameters Nocardia
PHYSIOLOGICAL  
Tropism Chemoorganotrophic,
Oxygen Aerobic. oxidative type of metabolism
pH  
Temperature Mesophilic.
Requirements  
Products  
Enzymes Catalase positive
Unique features Cell wall contains major amounts of meso-diaminopimelic acid (meso-DAP), arabinose, and galactose. The organisms contain diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositol mannosides, major amounts of straight-chain, unsaturated, and 10-methyl (tuberculostearic) fatty acids, mycolic acids with 46-60 carbons and up to three double bonds, and either tetra- hydrogenated menaquinone with eight isoprene units (MK- 8(H2)) (N. amarae) as the predominant isoprenolog. The fatty acid esters released on pyrolysis gas chromatography of mycolic esters contain 12-18 carbon atoms and may be saturated or unsaturated.
ENVIRONMENTAL  
Habitat  
Lifestyle  
Pathogenicity  
Distribution  

 

Genome Nocardia
G+C Mol % 64 -72 (Tm)
   

 

Reference Nocardia
First citation Trevisan, V 1889 I genera e le specie delle Batteriacee. Zanaboni and Gabuzzi, Milano
The Prokaryotes p
Bergey's Systematatic p 1459 M. Goodfellow and M. P. Lechevalier
Bergey's Determinative p 626
References