Dissociation and Interaction of Individual Components of a Degradative Plasmid Aggregate in Pseudomonas
AUTOR(ES)
Chakrabarty, A. M.
RESUMO
The transfer of the OCT plasmid from Pseudomonas oleovorans to Pseudomonas putida strain PpGl results in the acquisition of three independent replicons: OCT, factor K, and the MER plasmid. OCT is a nontransmissible plasmid harboring genes that code for the enzymes responsible for the degradation of n-octane. Factor K is a transfer plasmid capable of mobilizing OCT as well as chromosomal genes but incapable of enhancing transfer frequencies of other transmissible plasmids such as CAM, SAL, or RP-1. MER is a self-transmissible plasmid which can confer resistance to high concentrations of mercury salts. While OCT and MER are incompatible with CAM, factor K is compatible with it. Transmissible plasmids such as SAL, CAM, MER, or RP-1 cannot mobilize OCT to any significant extent, and exert strong repression on factor K-mediated transfer of chromosomal genes.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=433782Documentos Relacionados
- Dissociation of a Degradative Plasmid Aggregate in Pseudomonas
- Dissociation of the NIC plasmid aggregate in Pseudomonas putida.
- XYL, a nonconjugative xylene-degradative plasmid in Pseudomonas Pxy.
- NIC, a conjugative nicotine-nicotinate degradative plasmid in Pseudomonas convexa.
- TOM, a new aromatic degradative plasmid from Burkholderia (Pseudomonas) cepacia G4.
