Cross Index Archaea
SuperSet Prokaryote
Compare  
Contrast Eubacteria
Subset Methanogens
Cell Wall-Less Archaeobacteria
Sulfate Reducing Archaeobacteria
Halophilic Archaeobacteria
Extremely Thermophilic Archaeobacteria

 

Morphology Archaea
CELLULAR  
Staining  
Morphology  
Motility Some archeobacteria are motile while others are non motile
Specialized structures The lack of murein cell walls makes archaeobacteia insensitive to Beta lactam antibiotics.
Division  
COLONIAL  
Solid surface  
Liquid

 

Growth Parameters Archaea
PHYSIOLOGICAL  
Tropism chemolithoautotrophically organotrophically or facultatively organotrophically
Oxygen They consist of aerobes, anaerobes and facultative anaerobes
pH  
Temperature mesophiles or thermophiles, with some species growing even above 100 c.
Requires  
Products  
Enzymes  
Unique features The archaebacteria do not have peptidoglycan in the cell wall and thus are resistent to Beta lactam antibiotics such as penicillin.

unique biochemical feature of archaeobacteria is the presence of glycerol isopranyl ether lipids. The "common arm" of the tRNAs contain pseudouridine or 1-methylpseudouridine instead of ribothymidine. The sequences of 5S, 16S and 23S rRNAs are very different from the corresponding one in eubacteria and eucaryotae.

ENVIRONMENTAL  
Habitat predominatly terrestrial and aquatic microbes occurring in anaerobic or hypersaline or hydrothermally and geothermally heated envirnments.
Lifestyle Some are symbionts in animal digestive tracts
Pathogenicity  
Distribution  

 

Genome Archaea
G+C Mol %  
   

 

Reference Archaea
First citation  
The Prokaryotes p
Bergey's Systematatic p 2171-2253 H. Konig and K.O. Stetter
Bergey's Determinative p 12-14
References