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Main Title 90SR Uptake by 'Pinus ponderosa' and 'Pinus radiata' Seedlings Inoculated with Ectomycorrhizal Fungi.
Author Entry, J. A. ; Rygiewicz, P. T. ; Emmingham, W. H. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Oregon State Univ., Corvallis. Dept. of Forest Science.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/467;
Stock Number PB95-137295
Additional Subjects Strontium 90 ; Pine trees ; Uptake ; Radioecological concentration ; Radionuclide migration ; Reactor accidents ; Nuclear explosions ; Fallout ; Radioisotopes ; Seedlings ; Soil contamination ; Bioaccumulation ; Reprints ; Pinus ponderosa ; Pinus radiata ; Ectomycorrhizal fungi
Library Call Number Additional Info Location Last
NTIS  PB95-137295 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
In the study, the authors inoculated P. ponderosa and P. radiata seedlings with one of five isolates of ectomycorrhizal fungi; inoculated and nonincoculated (control) seedlings were compared for their ability to remove Sr90 from an organic growth medium. Seedlings were grown for 3 months in a growth chamber in glass tubes containing 165 cu cm of sphagnum peat moss and perlite and, except in the controls, the fungal inoculum. After 3 months, 5978 Bq of Sr90 in 1 ml of sterile, distilled, deionized water was added. Seedlings were grown for an additional month and then harvested. P. ponderosa seedlings that were inoculated with ectomycorrhizal fungi accumulated 3.0-6.0% of the Sr90; bioconcentration ratios ranged from 98-162. Inoculated P. radiata seedlings accumulated 6.0-6.9% of the Sr90; bioconcentration ratios ranged from 88-133. Noninoculated P. ponderosa and P. radiata seedlings accumulated only 0.6 and 0.7% of the Sr90 and had bioconcentration ratios of 28 and 27, respectively.