Methanogenium
SuperSet Prokaryote, Archaea, Methanogens Methanogens Subgroup 2 :
Compare Methanogens subgroup 1: Methanobacterium ,Methanobrevibacter, Methanosphaera ,Metthanothermus

Methanogens Subgroup 2 : Methanococcus ,Methanocorpusculum , Methanoculleus , Methanogenium Methanolacinia paynteri, Methanomicrobium mobile , Methanoplanus , Methanospirillum hungatei

Methanogens subgroup 3: Methanococcoides methylutens , Methanohalobium evstigatus , Methanohalophilus , Methanolobus , Methanosarcina , Methanothrix

Contrast Methanogens
Cell Wall-Less Archaeobacteria
Sulfate Reducing Archaeobacteria
Halophilic Archaeobacteria
Extremely Thermophilic Archaeobacteria

Eubacteria
Subset  

 

Morphology Methanogenium
CELLULAR  
Staining Gram-negative
Morphology Irregular cocci occurring singly or in pairs, usually 1.0-2.6 um in diameter...
Motility No motility observed, although some strains flagellated
Specialized structures Non-sporeforming
Division  
COLONIAL  
Solid surface  
Liquid  

 

Growth Parameters Methanogenium
PHYSIOLOGICAL  
Tropism Chemolithotrophic
Oxygen Strictly anaerobic
pH optimal pH, between 6.2 and 7.3
Temperature Optimal temperatures range between 20 and 60`C,
Requirements use hydrogen or sometimes formate as the electron donor, reducing carbon dioxide to methane. Growth factors required. NaCl generally required or stimulatory for growth.
Products  
Enzymes  
Unique features  
ENVIRONMENTAL  
Habitat  
Lifestyle  
Pathogenicity  
Distribution  

 

Genome Methanogenium
G+C Mol % 58- 61 (Bd)
   

 

Reference Methanogenium
First citation Romesser,J.A., R.S.Wolfe, F. Mayer, E. Spiess and A. Walther-Mauruschat. 1979. Methanogenium, a new genus of marine methanogenic bacteria, and characterization of Methanogenium cariaci sp. nov. and Methanogenium marisnigri sp. nov. Arch. Microbiol 121: 147-153
The Prokaryotes  
Bergey's Systematatic p 2195 J. A. Romesser
Bergey's Determinative p 722
References