Plant growth regulating activity of three polyacetylenes from Helianthus annuus L.
Three polyacetylenes, 8-(beta-D-glucopyranosyloxy)-3-hydroxy-1,9,14-pentadecatriene-4,6-diyne, termed "helian"(1), 8-acetoxy-3-hydroxy-1,9,14-pentadecatriene-4,6-diyne (2), and 3,8-dihydroxy-1,9,14-pentadecatriene-4,6-diyne (3) were isolated from seedlings of sunflower, Helianthus annuus L. cv Russia. Compounds 1 and 2, having a beta-glucose and an acetoxy group at C-8, respectively, showed a weak effect on the growth of roots and shoots of rice (Oryza sativa L.) and cress (Lepidium sativum L.), while compound 3, having a free hydroxyl group at C-8, exhibited a growth promoting effect on the roots and shoots of rice and cress.
Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan.
Si Won
SW
Hong
Koji
K
Hasegawa
Hideyuki
H
Shigemori
D019607:Brassicaceae / Q000187:drug effects / Q000254:growth & development; D004305:Dose-Response Relationship, Drug; D006368:Helianthus / Q000187:drug effects* / Q000254:growth & development*; D009005:Monosaccharides / Q000737:chemistry / Q000494:pharmacology*; D012275:Oryza / Q000187:drug effects / Q000254:growth & development; D010937:Plant Growth Regulators / Q000494:pharmacology*; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development; D053279:Polyynes / Q000737:chemistry / Q000494:pharmacology*
C541212:3,8-dihydroxy-1,9,14-pentadecatriene-4,6-diyne; C541210:8-(beta-D-glucopyranosyloxy)-3-hydroxy-1,9,14-pentadecatriene-4,6-diyne; C541211:8-acetoxy-3-hydroxy-1,9,14-pentadecatriene-4,6-diyne; D009005:Monosaccharides; D010937:Plant Growth Regulators; D053279:Polyynes