Changes in Abscisic Acid Content in Axis and Cotyledons of DevelopingPhaseolus vulgarisEmbryos and their Physiological Consequences
- 1 December 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 36 (12) , 1900-1905
- https://doi.org/10.1093/jxb/36.12.1900
Abstract
Prevost, I. and Le Page–Degivry, M. Th. 1985. Changes in absicisic acid content in axis and cotyledons of developing Phaseolus vulgaris embryos and their physiological consequences.—J. exp. Bot. 36: 1900–1905.Changes in abscisic acid (ABA) content with time were measured in embryonic axes and in cotyledons of Phaseolus vulgaris embryos using a radio–immunoassay. During embryogenesis, a similar pattern was observed in both tissues: ABA increased to a maximum 29 d after an thesis, followed by a decrease as the seed matured. The level of ABA in the cotyledons was always much higher than that in the axes. In in vitro cultures, the duration of the lag phase before germination of isolated embryonic axes increased with ABA content. The presence of cotyledons always lengthened the lag phase; longer lag phases were associated with greater concentrations of ABA in the cotyledons. Moreover the presence of cotyledons stimulated the growth of seedlings.Keywords
This publication has 5 references indexed in Scilit:
- Inverse Correlation between ABA Content and Germinability throughout the Maturation and theIn VitroCulture of the Embryo ofPhaseolus vulgarisJournal of Experimental Botany, 1985
- Correlations Between Axis and Cotyledons in Apple-embryo DormancyZeitschrift für Pflanzenphysiologie, 1982
- Maturation and germination of Phaseolus vulgaris embryonic axes in culturePlanta, 1981
- Abscisic Acid Accumulation in Developing Seeds of Phaseolus vulgaris LPlant Physiology, 1979
- Abscisic Acid Levels in Soybean Reproductive Structures during DevelopmentPlant Physiology, 1976