ISSN:
1572-9699
Keywords:
copper resistance
;
Pseudomonas
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract NinePseudomonas strains were selected by their high copper tolerance from a population of bacteria isolated from heavy-metal polluted zones. Copper resistance (Cu r ) was inducible by previous exposure of cultures to subinhibitory amounts of copper sulfate. All nine strains possessed large plasmids, but transformation and curing results suggest that Cu r is conferred by chromosomal genes. Plasmid-lessPseudomonas aeruginosa PAO-derived strains showed the same level of Cu r as environmental isolates and their resistance to copper was also inducible. Total DNA from the environmentalPseudomonas, as well as fromP. aeruginosa PAO strains, showed homology to a Cu r P. syringae cop probe at low-stringency conditions but failed to hybridize at high-stringency conditions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00871819
