Cellular Fe-hydroxides and heavy metal sorption in Euglena sp. (algae): implications for biomineralization
STEM imagery and electron diffraction patterns of Euglena sp. reveal pronounced intra and cellular-membrane aggregates of Fe-hydroxides (some lepidocrocite), in natural communities from tailings waters, Elliott Lake, Ontario. Pure isolates of Euglena sp. contain 40-70% Fe by dry weight and in addition average Al 28,000 ppm, Sr 150, Ba 40, Zn 150, Mn 250, Ni 120, Pb 1600, Th 70, Cu 200 and U 180. In tailings waters, Fe solute concentrations average 560 ppm and U 50 ppb. Concentration factors for Fe, Ba, Zn, Mn, Ti, V, Ni, Pb, Cr, Ag, Co and Cu in algae referenced to average world river waters are greater than or equal to 10/sup 6/. These results endorse the premise that microorganisms mediate transfer of many solutes between the hydrosphere and sedimentary regime.
- Research Organization:
- Univ. of Western Ontario, London (Canada)
- OSTI ID:
- 6458877
- Report Number(s):
- CONF-8510489-
- Journal Information:
- Geol. Soc. Am., Abstr. Programs; (United States), Vol. 17; Conference: 98. annual meeting of the Geological Society of America, Orlando, FL, USA, 28 Oct 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALGAE
BIOGEOCHEMISTRY
SORPTIVE PROPERTIES
METALS
BIOLOGICAL ACCUMULATION
CHEMICAL COMPOSITION
IRON HYDROXIDES
MICROORGANISMS
MINERAL CYCLING
MINERALIZATION
ONTARIO
WASTE WATER
CANADA
CHEMISTRY
ELEMENTS
GEOCHEMISTRY
HYDROGEN COMPOUNDS
HYDROXIDES
IRON COMPOUNDS
LIQUID WASTES
NORTH AMERICA
OXYGEN COMPOUNDS
PLANTS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
WASTES
WATER
580400* - Geochemistry- (-1989)