abscisic acid promotes abscission of the flowers and fruits.. reasons??
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The abscission of inflorescences, flowers, petals, sepals, styles, and stamens is discussed, with emphasis on the anatomy and ultrastructure of the abscission zones, and the role of cell wall degrading enzymes and hormonal control. Shedding of these parts is usually due to cell …
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The stress hormone abscisic acid (ABA) induces expression of defence genes in many organs, modulates ion homeostasis and metabolism in guard cells, and inhibits germination and seedling growth. ... Measurements to test this hypothesis could not be done in germinating seeds and we used roots as the most convenient system
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