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Plant Physiology 95:1291-1293 (1991) © 1991 American Society of Plant Biologists Abscisic Acid in Developing Zygotic Embryos of Theobroma cacao1Center for Reproduction of Endangered Wildlife, Cincinnati Zoo and Botanical Garden, Cincinnati, Ohio 45220, Department of Biological Sciences, University of Cincinnati, Cincinnati, Ohio 45221
Abscisic acid (ABA) levels were measured by enzyme-linked immunosorbent assay in developing zygotic embryos of Theobroma cacao. ABA was detected in all embryos tested, with a peak of ABA at levels of 1 to 3 micrograms per gram fresh weight during early maturation. This corresponded to embryos of 10 to 30% dry weight and to early stages of anthocyanin and lipid accumulation.
1 These studies were supported in part by a grant from the Hershey Foods Corporation.
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