Novel plasmids from alkaliphilic halomonads.
Seventeen alkaliphilic halomonads were examined for the presence of plasmids. Of these, eight strains harbored one or more from 5.3 to 33 kb in size, the first plasmids to be identified from an alkaliphilic halomonad source. Restriction and hybridization analysis revealed three strains that maintained an identical 5.9-kb plasmid which we named pAH1, two that had an identical 33-kb plasmid, and three others, of which one carried two plasmids of 5.3 and 15 kb, the former being designated pAH2. The two final strains maintained plasmids of 15 and 20.5 kb. Restriction mapping of both pAH1 and pAH2 indicated that they have a number of unique restriction sites and are of a small enough size to make them suitable for vector construction.
Fish
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Department of Microbiology and Immunology, University of Leicester, Maurice Shock Building, Leicester, LE1 9HN, United Kingdom.
Duckworth
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Grant
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D019641:DNA, Archaeal / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D019766:Genes, Archaeal; D016931:Halobacteriales / Q000235:genetics* / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D010802:Phylogeny; D010957:Plasmids / Q000737:chemistry / Q000235:genetics* / Q000302:isolation & purification*; D019642:RNA, Archaeal / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D015183:Restriction Mapping; D014871:Water Microbiology
D019641:DNA, Archaeal; D019642:RNA, Archaeal; D012336:RNA, Ribosomal, 16S