2 - cis, 4 - trans - Abscisic acid CAS number: [14375-45-2] molecular formula: C15H20O4 molecular weight: 264.32 appearance: white crystal purity: 98% melting point: 183-186 ° C loss on drying: < 0.5% ignition residue: < 0.1%, explain the other high-tech: 80% 90% high-tech, high-tech chemical name: (+ / -) - Abscisic acid (2 - shun, 4 - trans) - 5 - (1 - hydroxy - 2,6,6 - three methyl - 4 - oxygen generation - 2 - cyclohexene - 1 - base) - 3 - methyl - 2, 4 - pentadiene acid; S - ABA application: this hormone abscisic acid (ABA) play regulatory role in the host for the physiological process all higher and lower plant (Davies and Jones, 1991; Zeevaart, creer mann 1988). Abscisic acid mediated resistance response in higher plants, is an important signal, regulating stomatal opening, in concert with other plant signal compound compounds, be involved in the mediation of pathogens and hurt. Seeds, ABA to promote the development of seeds and embryos mature, synthesis of storage products (protein and fat), dry, participate in maintenance dormancy inhibiting germination, cell apoptosis (Zeevaart and creer mann, 1988, Davis and Jones, 1991, Thomas, 1993 beth grams, etc. 1999). At the same time, ABA affect plant system structure, including the root growth and form, and root to shoot ratio.
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