A modified gel electrophoresis technique provided a reproducible way of detecting and isolating plasmids with molecular weights ranging from 12 X 10(6) to 370 X 10(6) for Azospirillum species. Analysis with the nifHD region of Rhizobium trifolii showed that the Azospirillum nif genes were chromosomally located in all eight strains investigated and not on endogenous plasmids.
No takes yet. Share an insight, caveat, or question.
Plazinski et al. (1983) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: