Effect of preincubation UV irradiation of abscisic acid and gibberellin A3 on {alpha}-amylase induction in barley half-seeds |
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Authors: | Alpi, Amedeo De Hertogh, A. A. |
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Affiliation: | Department of Horticulture, Michigan State University East Lansing, Michigan 48823, U.S.A. |
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Abstract: | A 24 hr preincubation UV (254 nm) irradiation of RS-ABA andGA3 solutions completely negated the inhibitory effect of ABAon GA3 induced -amylase production with barley half-seeds. Thisirradiation, however, caused no significant inhibition of GA3-induced-amylase production. UV treatment of an extract from Tulipaindicated that this technique can be used to photooxidize ABA-likesubstances present in plant extracts. 1 Michigan Agricultural Experiment Station Journal Article No.5774. This research was supported in part by a grant from theNetherlands Flower-Bulb Institute, New York and the OrnamentalMarketing Board, The Hague.2 Present address: Istituto di Orticoltura e Floricoltura, Universitàdegli Studi di Pisa, 56100, Italy. (Received February 26, 1972; ) |
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