Effects of ozone on synthesis and storage of nutrients in soybean seeds

Journal Article · Sat Jan 01 04:00:00 EST 1972 · Plant Physiol.; (United States)

OSTI ID:5662230

Frey, J E; Buss, W R

Soybean plants were subjected to daily 4 hr. ozone fumigations of 50 pphm and 75 pphm throughout their life cycles. Vegetative biomass and seed yield were determined; and analyses were made of the lipid, phospholipid, fatty acid, amino acid and protein contents of the seeds. The 75 pphm ozone treated plants had a 53.8% reduction in vegetative biomass and a 77.8% reduction in seed yield compared to the control plants. The biomass and seed yield reductions at 50 pphm were 22.3% and 54.6%, respectively. A chemical analysis of the seeds produced in the 75 pphm ozone environment showed a 5.18% decrease in lipids and a 40.1% increase in free amino acids. In the 50 pphm ozone environment the lipid decrease was 3.78% and the amino acid increase was 20.6%. This analysis also showed a possible phospholipid reduction in seeds produced at increased ozone concentrations. An analysis of the lipid fractions showed a possible change in fatty acid content. The greatest change was a 2.5% increase (compared to the control) in the linolenic acid content at the 75 pphm ozone concentrations. There was no indication that ozone affected the protein content of the seeds.

• Research Organization: Univ. of Northern Colorado, Greeley
• OSTI ID: 5662230
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 495; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINO ACIDS
BIOLOGICAL EFFECTS
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHRONIC EXPOSURE
COMPARATIVE EVALUATIONS
DOSE-RESPONSE RELATIONSHIPS
ESTERS
GLYCINE HISPIDA
GROWTH
LEGUMINOSAE
LINOLENIC ACID
LIPIDS
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OZONE
PHOSPHOLIPIDS
PLANT GROWTH
PLANTS
PRODUCTIVITY
SEEDS