Cross Index Meniscus glaucopis
superset Prokaryote, Eubacteria Gram-Negative curved bacteria
Compare Ancylobacter aquaticus ,"Brachyarcus thiophilus", Cyclobacterium marinum, Flectobacillus, Meniscus glaucopis,
"Pelosigma", Runella slithyformis, Spirosoma linguale
Contrast Archaea
Subset  

 

Morphology Meniscus glaucopis
CELLULAR  
Staining Gram-negative
Morphology Curved or straight rods, 0.7-1.0 um in diameter and 2.0-3.0 um in length. Cultures may show single cells, pairs, tightly coiled spirals, S shapes (two cells, one inverted), and doughnut-shaped cells, where the ends are overlapping before division by binary fission has occurred. "Rings" have outer diameters of about 3.0 um..
Motility Non-motile
Specialized structures Resting stages not known .Encapsulated. Gas vacuoles arranged at random within cells.
Division  
COLONIAL  
Solid surface Colonies chalky white
Liquid  

 

Growth Parameters Meniscus glaucopis
PHYSIOLOGICAL  
Tropism Chemoorganotrophic; strictly fermentative metabolism with no gas production
Oxygen Aerotolerantly anaerobic; capable of growth under an air atmosphere provided at least 1% CO2 is present
pH  
Temperature 30`C. No growth at 10 or 40`C
Requirements Vitamin B12, thiamin and CO2 required for growth
Products  
Enzymes Catalase- and oxidase-negative..
Unique features  
ENVIRONMENTAL  
Habitat Isolated from anaerobic digester sludge.
Lifestyle  
Pathogenicity  
Distribution  

 

Genome Meniscus glaucopis
G+C Mol % 44.9
   

 

Reference Meniscus glaucopis
First citation Irgens,R.L. (1977) Meniscus, a new genus of aerotolerant, gas vacuolated bacteria. IJSB 27:38-43
The Prokaryotes p
Bergey's Systematatic p 135 R. L. Irgens
Bergey's Determinative p 66
References