Cross Index Achromatium
SuperSet Prokaryote, Eubacteria Gliding Bacteria
Compare Herpetosiphon, Thioploca and Thiothrix nivea which also have sheaths are a lso included in the Sheathed heterotrophs . The genus Lyngbya which is one of the cyanobacteria also has a sheath.

Sheathed heterotrophs :Clonothrix fusca Crenothrix polyspora, Haliscomenobacter hydrossis, Leptothrix, Lieskeella bifida Phragmidiothrix multiseptata Sphaerotilus natans , Thioploca, Thiothrix nivea, Herpetosiphon

Cytophagales, Beggiatoales

Single Celled, rod shaped Capnocytophaga, Chitinophaga pinensis , Cytophaga, Flexibacter, Flexithrix dorotheae, Lysobacter, Microscilla, Sporocytophaga myxococcoides, Thermomena,
Flattened, filamentous Gliding: Alysiella filiformis, Simonsiella,
Sulfur oxidizing,Gliding: Achromatium, Beggiatoa alba, Thioploca, Thiospirillopsis floridana, Thiothrix nivea,
The Pelonemas: Achroanema spp, Desmanthos thiorenophilum, Pelenema, Peloploca,
Other Genera: Agitococcus lubricus , Desulfonema Herpetosiphon, Isosphaera pallida, Leucothrix mucor, Saprospira, Toxothrix trichogenes,Vitreoscilla
Contrast Archaea
Subset  

 

Morphology Achromatium
CELLULAR  
Staining Gram-negative
Morphology Spherical to ovoid or cylindrical with hemispherical ends, 5-33 x 15-100 um
Motility Movement, if any, of a slow rolling jerky type on solid surfaces
Specialized structures Division by constriction in the middle.. (Photosynthetic) pigments absent. Sulfur droplets and large spherules of calcium carbonate are typical inclusions. No resting stages are known
Division  
COLONIAL  
Solid surface Pure cultures are not available
Liquid  

 

Growth Parameters Achromatium
PHYSIOLOGICAL  
Tropism  
Oxygen Aerobic,
pH  
Temperature  
Requirements apparently requires H2S.
Products  
Enzymes catalase-negative
Unique features  
ENVIRONMENTAL  
Habitat  
Lifestyle  
Pathogenicity  
Distribution  

 

Genome Achromatium
G+C Mol %  
   

 

Reference Achromatium
First citation Schewiakoff ,W. 1893. Uber einen neunen bakterienahnlichen Organismus des Susswassers., Habilitationsschrift, Universitat Heidelberg, C. Winter. pp 1-36
The Prokaryotes  
Bergey's Systematatic p 2131 J.W. M. LaRieviere and K. Schmidt
Bergey's Determinative p 491
References