Cross Index Paracoccus
SuperSet Prokaryote, Eubacteria Gram-Negative Aerobic/ Microaerophilic Rods and Cocci
Compare Acetobacter, Acidiphilium, Acidomonas methanolica, Acidothermus cellulolyticus, Acidovorax, Acinetobacter, Afipia, Agrobacterium, Agromonas oligotrophica, Alcaligenes, Alteromonas, Aminobacter, Aquaspirillum, Azomonas, Azorhizobium caulinodans, Azotobacter, Bacteroides, Beijerinckia, Bordetella, Bradyrhizobium japonicum, Brucella, Chromohalobacter marismortui, Chryseomonas luteola, Comamonas, Cupriavidus necator, Deleya, Derxia gummosa, Ensifer adherans, Erythrobacter longus, Flavimonas oryzihabitans, Flavobacterium, Francisella, Frateuria aurantica, Gluconobacter, Halomonas, Hydrogenophaga, Janthinobacterium lividum, Kingella, Lampropedia hyalina, Legionella, Marinobacter hydrocarbonoclasticus, Marinomonas, Mesophilobacter marinus, Methylobacillus glycogenes, Methylobacterium, Methylococcus, Methylomonas, Methylophaga, Methylophilus, Methylovorus glucosotrophus, Moraxella, Morococcus cerebrosus, Neisseriaceae, Neisseria, Oceanospirillum, Ochrobactrum anthropi, Oligella, Paracoccus, Phenylobacterium immobile, Phyllobacterium, Pseudomonas, Psychrobacter immobilis, Rhizobacter daucus, Rhizobium, Rhizomonas suberifaciens, Rochalimaea, Roseobacter, Rugomonas rubra, Serpens, Sinorhizobium, Sphingobacterium, Taylorella equigenitalis, Thermoleophilum, Thermomicrobium, Thermus, Variovorax paradoxus, Volcaniella eurhalina, Weeksella, Wolinella, Xanthobacter, Xanthomonas, Xyella fastidiosa, Xylophilus ampelinus, Zoogloea ramigera
Contrast Archaea


Morphology Paracoccus
Staining Gram-negative
Morphology Spherical cells (0.5-0.9 um in diameter) or short rods (0.9-1.2 um long). Occur singly, in pairs or in clusters.
Motility Nonmotile
Specialized structures Intracellular granules of poly-B-hyroxybutyrate present. No resting stages are known..
Solid surface  


Growth Parameters Paracoccus
Tropism One species can grow either autotrophically with H2 and CO2 or heterotrophically with a wide variety of organic compounds as sole carbon sources; this species is not halphilic. A second species is not capable of autotrophic growth but is halophilic
Oxygen Aerobic, having a strictly respiratory type of metabolism; anaerobic growth can occur if nitrate, nitrite or nitrous oxide are available as terminal electron acceptors

Nitrate is reduced to nitrous oxide and molecular nitrogen under anaerobic conditions

Temperature optimum 25-30 oC
Enzymes Oxidase- and catalase-positive
Unique features  
Habitat Occur in soil and presumably in natural and artifical brines


Genome Paracoccus
G+C Mol % 64-67


Reference Paracoccus
First citation Davis D.H. (1969) In Davis,D.H., M. Doudoroff, R.Y. Stanier and M. Mandel 1969 Proposal to reject the genus Hydrogenomonas. Taxonomic implications IJSB. 19:375-390
The Prokaryotes p
Bergey's Systematatic p 399 M. Kocur
Bergey's Determinative p 92