ISSN:
1574-6968
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
Abstract Cell-free extracts obtained from nitrogen-fixing cells of organisms of the family Azotobacteriaceae were analyzed for superoxide dismutases (SOD). For all the representative organisms examined, unusually high specific activities for SOD were recorded. Single Fe-containing SOD were found in Azotobacter vinelandii (5 strains), A. chroococcum (2 strains), A. beijerinckii (1 strain), Azomonas macrocytogenes (2 strains), and Derxia gummosa (2 strains). Highly active, single Mn-containing SOD were found in all of 6 Beijerinckia strains examined (B. indica, B. lacticogenes, B. mobilis, B. fluminensis, B. derxii and B. venezuelae). Multiple SOD were found for Azomonas agilis (Mn-SOD and 2 Fe-SOD), A. insignis (Mn-SOD, Fe-SOD) and Azospirillum lipoferum (2 Fe-SOD) and Azospirillum brasilense (Mn-SOD and 2 Fe-SOD).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1574-6968.1984.tb01316.x
Permalink
