Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effect of Chronic Ozone Exposure on the Metabolite Content of Ponderosa Pine Seedlings.
Author Tingley, David T. ; Wilhour, Raymond G. ; Standley, Carol ;
CORP Author Corvallis Environmental Research Lab., OR.
Year Published 1976
Report Number EPA/600/J-78/081;
Stock Number PB-287 566
Additional Subjects Ozone ; Pine trees ; Air pollution ; Exposure ; Field tests ; Metabolism ; Harvesting ; Nitrogen ; Amino acids ; Oregon ; Reprints ; Pinus ponderosa
Library Call Number Additional Info Location Last
NTIS  PB-287 566 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 11p
Ponderosa Pine (Pinus ponderosa Laws.) seedlings grown in field exposure chambers and fumigated with ozone at a concentration of 200 g/cu m 6 h/day; 7 days/wk for variable periods of up to 20 weeks. Pines were harvested at 4 wk intervals to determine the levels of the metabolites in tops (stem and needles) and roots. The ozone exposure affected the metabolite pools in the roots and tops differentially. The ozone treatment had no effect on the nitrogen or amino acid content of the tops but increased the levels of these pools in the roots. The levels of the soluble sugars, starch, and phenols tended to increase in the tops and decrease in the roots of the ozone-exposed plants. The ozone treatment had no effect on the lignin content in either the roots or the tops.