TY - JOUR
T1 - Isolation and structure elucidation of a potent growth inhibitor, helian, from blue light-illuminated sunflower (Helianthus annuus) hypocotyls
AU - Hasegawa, Tsuyoshi
AU - Togo, Shigenori
AU - Hisamatsu, Yosuke
AU - Yamada, Kosumi
AU - Suenaga, Kiyotake
AU - Sekiguchi, Mitsuhiro
AU - Shigemori, Hideyuki
AU - Hasegawa, Koji
PY - 2007/3/1
Y1 - 2007/3/1
N2 - A potent growth inhibitor was isolated from blue light-illuminated sunflower (Helianthus annuus) hypocotyls and identified as 8-(β-D-glucopyranosyloxy)-3-hydroxy-1,9,14-pentadecatriene-4,6-diyne (1, designated "helian") from analysis of its 1H and 13C NMR spectra, and HRFABMS. Helian 1 showed plant growth-inhibitory activity at concentrations higher than 2.6 × 10-6 mol/L for the cress root growth test. The amount of helian was higher in the illuminated halves than in the shaded ones in phototropically stimulated sunflower hypocotyls. These results suggest that this new potent growth inhibitor, helian, may play an important role on phototropism of sunflower hypocotyls.
AB - A potent growth inhibitor was isolated from blue light-illuminated sunflower (Helianthus annuus) hypocotyls and identified as 8-(β-D-glucopyranosyloxy)-3-hydroxy-1,9,14-pentadecatriene-4,6-diyne (1, designated "helian") from analysis of its 1H and 13C NMR spectra, and HRFABMS. Helian 1 showed plant growth-inhibitory activity at concentrations higher than 2.6 × 10-6 mol/L for the cress root growth test. The amount of helian was higher in the illuminated halves than in the shaded ones in phototropically stimulated sunflower hypocotyls. These results suggest that this new potent growth inhibitor, helian, may play an important role on phototropism of sunflower hypocotyls.
UR - http://www.scopus.com/inward/record.url?scp=34547125319&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547125319&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:34547125319
SN - 0385-5414
VL - 71
SP - 609
EP - 617
JO - Heterocycles
JF - Heterocycles
IS - 3
ER -