Abstract
THE transfer of nitrogen fixation (nif) genes to bacterial mutants defective in this capacity (nif−) by transduction1 and conjugation2 was first observed in 1971 with Klebsiella pneumoniae. The investigations cited and the subsequent demonstration3 that nif genes can be transferred from K. pneumoniae to Escherichia coli have been widely regarded as harbingers of the molecular biology of the nitrogen fixation process. We now report a new system of interest in this connection, namely, the transfer of nif genes in the non-sulphur purple photosynthetic bacterium Rhodopseudomonas capsulata. Genetic transfer in this organism is mediated by a filterable vector of small size and unknown nature, the “gene transfer agent” (GTA), discovered by Marrs4.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
