title: Phototropism in Hypocotyls of Radish : I. Isolation and Identification of Growth Inhibitors, cis- and trans-Raphanusanins and Raphanusamide, Involved in Phototropism of Radish Hypocotyls.
abstract: Three growth inhibitors which might be involved in phototropism of Sakurajima radish (Raphanus sativus var. hortensis f. gigantissimus Makino) hypocotyls, were isolated as crystalline forms from light-exposed radish seedlings and identified as cis- and trans-raphanusanins and 6-methoxy-2,3,4,5-tetrahydro-1,3-oxazepin-2-one (designated raphanusamide). The cis- and trans-raphanusanins inhibited growth of etiolated radish hypocotyls at concentrations higher than 1.5 micromolar, raphanusamide at concentrations higher than 20 micromolar.
authors: Biological Institute, College of Liberal Arts, Kagoshima University, Korimoto 1-21-30, Kagoshima 890, Japan.
authors: K
authors: K
authors: Hasegawa
authors: H
authors: H
authors: Noguchi
authors: T
authors: T
authors: Iwagawa
authors: T
authors: T
authors: Hase