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. 1976 Sep;58(3):363–366. doi: 10.1104/pp.58.3.363

Abscisic Acid Levels in Soybean Reproductive Structures during Development 1

Bruno Quebedeaux a, Philip B Sweetser a, John C Rowell a
PMCID: PMC542247  PMID: 16659679

Abstract

Abscisic acid (ABA) concentrations and growth rates of developing soybean (Glycine max [L.] Merr. cv. Wye) seeds and pod walls were determined from anthesis to maturation using high pressure liquid chromatographic techniques. Developing soybean seeds contain up to 12,200 ng/g fresh weight of ABA compared to 330 ng/g fresh weight for pod walls. In the developing seeds ABA levels correlated with growth rates, being the highest during the most active growth period of seed enlargement, and then decreasing to less than 10 ng/g fresh weight at maturity. Higher levels of ABA were found to occur in the cotyledons and seed coats than the root-shoot axes at 21 days postanthesis. The time required for excised root-shoot axes to initiate growth in liquid culture decreased as seed development progressed and ABA levels of the seeds declined.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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