Foliar fatty acids and sterols of soybean field fumigated with SO/sub 2/
Sixty-day-old soybean plants were exposed in the field to 78.7 parts per one-hundred million of SO/sub 2/ in an open-air fumigation system for 20 days. Leaves from the top one-fourth and bottom one-fourth of the plants were analyzed for chlorophyll, free fatty acids, fatty acid esters, polar lipid fatty acids, and sterols. Fumigated plants had a lower chlorophyll, free fatty acid, and polar lipid content, but a higher fatty acid ester content. Of the individual fatty acids, linolenic and linolenic acid increased with SO/sub 2/ fumigation while palmitic acid decreased. SO/sub 2/ fumigations had only a minor effect on leaf sterols. In general, the lower, more mature leaves showed a greater response to SO/sub 2/ exposure.
- Research Organization:
- Univ. of Illinois, Champaign
- OSTI ID:
- 6404598
- Journal Information:
- Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 68:4; ISSN PLPHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOCHEMISTRY
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMISTRY
FOOD
GLYCINE HISPIDA
INJURIES
LEGUMINOSAE
METABOLISM
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLLUTION
SOYBEANS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
VARIATIONS
VEGETABLES