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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Factors affecting vesicle formation and acetylene reduction (nitrogenase activity) in Frankia sp. CpI1.

Vesicle formation and acetylene reduction (nitrogenase activity) were observed when washed hyphae from cultures of Frankia sp. CpI1 were transferred to a nitrogen-free medium containing ethylenediaminetetraacetic acid and succinate. Succinate could be replaced by malate or fumarate, but not other carbon sources. Maximum acetylene reduction and vesicle numbers were observed at a pH of 6.0-6.5, at 25-30 degrees Centigrade, and at atmos pheric Po2 or somewhat less (5-20 kPa). Addition of 1 mM NH4Cl almost completely inhibited vesicle formation and acetylene-reducing activity, but did not immediately inhibit such reducing activity by cultures with preexisting vesicles. Acetylene-reducing activity was never observed in the absence of vesicle formation.[1]

References

  1. Factors affecting vesicle formation and acetylene reduction (nitrogenase activity) in Frankia sp. CpI1. Tjepkema, J.D., Ormerod, W., Torrey, J.G. Can. J. Microbiol. (1981) [Pubmed]
 
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