title: Response of abscisic acid in soybean leaves to NO2 exposure.
abstract: Soybean (Glycine max L. Merril) cv. 'Williams' plants were exposed 0.0, 0.05, 0.2 and 0.4 microl litre(-1) NO(2) under controlled environment. Amount of abscisic acid (ABA) was measured after either 7 h or 5 days of exposure as well as after 18 h of recovery period. For quantitative analysis of ABA enzyme-linked immunosorbent assay was used. A significant increase (160%) was observed in plants treated with 0.4 microl litre(-1) NO(2) for 5 days compared to an increase of only 82% on exposure for 7 h. Rate of recovery for plants treated with low doses of NO(2) was higher than those treated with higher doses.
authors.affiliation: University of Maruland Eastern Shore, Princess Anne, Maryland 21853, USA.
authors.forename: R
authors.initials: R
authors.lastname: Sandhu
authors.forename: G
authors.initials: G
authors.lastname: Gupta
authors.forename: C
authors.initials: C
authors.lastname: Mulchi