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Title: Determinants encoding resistance to several heavy metals in newly isolated copper-resistant bacteria

Abstract

Three copper-resistant, gram-negative bacteria were isolated and characterized. Of the three strains, Alcaligenes dentrificans AH tolerated the highest copper concentration (MIC = 4 mM CuSO{sub 4}). All three strains showed various levels of resistance to other metal ions. A. denitrificans AH contains sequences which cross-hybridized with the mer (mercury resistance) determinant of Tn21 and the czc (cobalt, zinc, and cadmium resistance), cnr (cobalt and nickel resistance), and chr (chromate resistance) determinants of A. eutrophus CH34. DNA-DNA hybridization with probes prepared from A. eutrophus CH34 and Tn21 revealed the presence of chr-, cnr-, and mer-like sequences on the 200-kb plasmid pHG27 and of czc, cnr, and mer homologs located on the chromosomes. The second strain, classified as Alcaligenes sp. strain PW, carries czc, cnr, and mer homologs on the 240-kb plasmid pHG29-c and chr determinant on the 290-kb plasmid pHG29-a; a third plasmid, the 260-kb large plasmid pHG29-b, is cryptic. In contrast to the Alcaligenes strains, which were isolated from metal-contaminated water, Pseudomonas paucimobilis CD was isolated from the air. This strain harbors two cryptic plasmids: the 210-kb large plasmid pHG28-a and the 40-kb plasmid pHG28-b. Southern analysis revealed no homology between the metal ion resistance determinants of A. eutrophus CH34more » and P. paucimonilis CD.« less

Authors:
; ; ;  [1]
  1. Freie Univ. Berlin (West Germany)
Publication Date:
OSTI Identifier:
5945141
Resource Type:
Journal Article
Journal Name:
Applied and Environmental Microbiology; (United States)
Additional Journal Information:
Journal Volume: 57:11; Journal ID: ISSN 0099-2240
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; BACTERIA; GENETICS; COPPER; TOXICITY; CADMIUM; COBALT; DNA HYBRIDIZATION; MERCURY; NICKEL; PLASMIDS; PSEUDOMONAS; SCREENING; TOLERANCE; WATER POLLUTION; ZINC; BIOLOGY; CELL CONSTITUENTS; ELEMENTS; HYBRIDIZATION; METALS; MICROORGANISMS; POLLUTION; TRANSITION ELEMENTS; 550200* - Biochemistry; 560300 - Chemicals Metabolism & Toxicology; 540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-)

Citation Formats

Dressler, C, Kues, U, Nies, D H, and Friedrich, B. Determinants encoding resistance to several heavy metals in newly isolated copper-resistant bacteria. United States: N. p., 1991. Web.
Dressler, C, Kues, U, Nies, D H, & Friedrich, B. Determinants encoding resistance to several heavy metals in newly isolated copper-resistant bacteria. United States.
Dressler, C, Kues, U, Nies, D H, and Friedrich, B. 1991. "Determinants encoding resistance to several heavy metals in newly isolated copper-resistant bacteria". United States.
@article{osti_5945141,
title = {Determinants encoding resistance to several heavy metals in newly isolated copper-resistant bacteria},
author = {Dressler, C and Kues, U and Nies, D H and Friedrich, B},
abstractNote = {Three copper-resistant, gram-negative bacteria were isolated and characterized. Of the three strains, Alcaligenes dentrificans AH tolerated the highest copper concentration (MIC = 4 mM CuSO{sub 4}). All three strains showed various levels of resistance to other metal ions. A. denitrificans AH contains sequences which cross-hybridized with the mer (mercury resistance) determinant of Tn21 and the czc (cobalt, zinc, and cadmium resistance), cnr (cobalt and nickel resistance), and chr (chromate resistance) determinants of A. eutrophus CH34. DNA-DNA hybridization with probes prepared from A. eutrophus CH34 and Tn21 revealed the presence of chr-, cnr-, and mer-like sequences on the 200-kb plasmid pHG27 and of czc, cnr, and mer homologs located on the chromosomes. The second strain, classified as Alcaligenes sp. strain PW, carries czc, cnr, and mer homologs on the 240-kb plasmid pHG29-c and chr determinant on the 290-kb plasmid pHG29-a; a third plasmid, the 260-kb large plasmid pHG29-b, is cryptic. In contrast to the Alcaligenes strains, which were isolated from metal-contaminated water, Pseudomonas paucimobilis CD was isolated from the air. This strain harbors two cryptic plasmids: the 210-kb large plasmid pHG28-a and the 40-kb plasmid pHG28-b. Southern analysis revealed no homology between the metal ion resistance determinants of A. eutrophus CH34 and P. paucimonilis CD.},
doi = {},
url = {https://www.osti.gov/biblio/5945141}, journal = {Applied and Environmental Microbiology; (United States)},
issn = {0099-2240},
number = ,
volume = 57:11,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1991},
month = {Fri Nov 01 00:00:00 EST 1991}
}