ISSN:
1432-072X
Keywords:
Clostridium aceticum
;
Acetic acid formation
;
Chemolithotrophic growth
;
Hydrogen uptake
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Spores of Clostridium aceticum (Wieringa) from 1947 have been revived, and a study for a redescription of this microorganism has been carried out. C. aceticum was Gram negative. The cells were rodshaped and peritrichously flagellated. Round spores were formed in terminal position. The DNA contained 33 mol % guanine plus cytosine. The organism was obligately anaerobic and grew either chemolithotrophically with H2+CO2 or chemoorgranotrophically with compounds such as fructose, l-glutamate, l-malate or pyruvate. H2 and CO2 were converted to acetic acid according to the following equation: $$2{\text{ CO}}_{\text{2}} + 4{\text{H}}_{\text{2}} \to {\text{CH}}_{\text{3}} {\text{COOH + 2H}}_{\text{2}} {\text{O}}$$ The optimal temperature for growth was 30°C. The optimal pH for chemolithotrophic growth was 8.3. The doubling times for chemolithotrophic and chemoorganotrophic growth were 25 and 8h, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00422532
