A mobilizable shuttle vector for the cyanobacterium Plectonema boryanum
نویسندگان
چکیده
Plasmid pSUP5011 contains a pMBl origin of replication, an origin of transfer (oriT), and genes encoding resistance to the antibiotics ampicillin, chloramphenicol and kanamycin. pSUP5011 was conjugally mobilized from Escherichia coli into the non-heterocystous, filamentous, nitrogen-fixing cyanobacterium Plectonema boryanum UTEX 594 in the presence of a helper plasmid, RP4. Transconjugant cyanobacteria selected for resistance to kanamycin, ampicillin and chloramphenicol showed a variety of DNA rearrangements in pSUP5011. One such plasmid continued to show characteristic rearrangements following subsequent transfers into the cyanobacterium. A stable plasmid useful as a shuttle vector was isolated.
منابع مشابه
DNA sequence and shuttle vector construction of plasmid pGL3 from Plectonema boryanum PCC 6306.
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