THE GENUS MICROMONOSPORA 



297 



Cellulose: No decomposition. 



Nitrate reduction: None. 



Sucrose: Not inverted. 



Source: Soil. 



tt. Micromonospora propionica Hungate, 

 L946 (Hungate, R. E. J. Bacteriol. 51 : 51 

 56, L946). 



Morphology: Grows very slowly. White 

 spherical colonies produced on cellulose. 

 Colony consists of gradually expanding hol- 

 low shell, its outer surface consisting of sub- 

 strate hyphae, the adjacent inner portion 

 containing numerous spores, and the center 

 relatively devoid of protoplasm. 



iplex media required. 

 >wth. ( rood decomposi- 



tion 

 ui'ce 



: Obligate 



( llucose a 



taerobe. 



! cellulose are 



Media: Eighty 



Cellulose: Cood 



tion. 

 ( >xyg< 



Carl., 

 utilized. 



Fermentation product 

 acetic and propionic acids. 



Temperature: 30-40°C. 



Habitat : Cut of termites, rumen of cattle. 



Remarks: Prevot (1957) considers this 

 species as an anaerobic Actinomyces, which 

 he includes in the genus Actinobacterium. 



Carbo 



