释义 |
abscisin Biochem.|æbˈsɪsɪn, ˈæbsɪsɪn| [f. abscission + -in1.] A substance isolated from cotton bolls that promotes leaf abscission; abscisin II, the plant hormone now called abscisic acid.
1961Liu & Carns in Science 11 Aug. 384/2 A crystalline substance, designated abscisin, which accelerates abscission of excised debladed petioles.., has been isolated from cotton burs. 1963K. Ohkuma et al. in Science 20 Dec. 1592 Crystalline abscisin II, with a tentative molecular formula of C15H20O4, has been isolated from young cotton fruit. It accelerates abscission when applied in amounts as low as 0.01 µg per abscission zone. 1965Nature 27 Mar. 1269/1 We have isolated the dormin from sycamore..and have established its identity with abscisin II. 1968New Scientist 25 Jan. 187/1 Plant hormones such as..auxin, gibberellin, and abscisin have special roles in controlling growth. 1968[see abscisic a.]. 1972Goodwin & Mercer Introd. Plant Biochem. xv. 328 Abscisic acid.., also previously known as abscisin II and dormin,..is now known to be widely if not ubiquitously distributed in plants. |