Effects of some metallic compounds on Klebsiella
- Univ. of Regina, Saskatchewan (Canada)
Many industrial and waste disposal practices unconsciously pollute the environment by adding excess heavy metals to it. Although reports show an inconsistency in the toxic levels of heavy metals such as zinc, nickel, cadmium, mercury and silver between microbial groups, the toxic effects of the metals on microorganisms have been well documented. Little is known of the differential effects these metals have on coliform K. pneumoniae and K. oxytoca. These bacteria are widely recognized as antibiotic resistant opportunistic pathogens ubiquitously distributed in environments. Besides, they are able to fix dinitrogen. In this study, these metals were found to affect these organisms in a variety of concentrations. Such effect could affect the total coliform count in water, dinitrogen fixation, and removable of nitrate in soil and water.
- OSTI ID:
- 6808470
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology; (USA), Vol. 40:5; ISSN 0007-4861
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
KLEBSIELLA
POPULATION DYNAMICS
METALS
BIOLOGICAL EFFECTS
ACETATES
CADMIUM COMPOUNDS
COBALT CHLORIDES
IRON CHLORIDES
MAGNESIUM SULFATES
MANGANESE SULFATES
MOLYBDATES
NICKEL CHLORIDES
NITROGEN FIXATION
SILVER COMPOUNDS
THORIUM CHLORIDES
ZINC CHLORIDES
ACTINIDE COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BACTERIA
CARBOXYLIC ACID SALTS
CHLORIDES
CHLORINE COMPOUNDS
COBALT COMPOUNDS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
IRON COMPOUNDS
MAGNESIUM COMPOUNDS
MANGANESE COMPOUNDS
MICROORGANISMS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SULFATES
SULFUR COMPOUNDS
THORIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS
ZINC HALIDES
560300* - Chemicals Metabolism & Toxicology