Hydroxysulochrin, a tea pollen growth inhibitor from the fungus Aureobasidium sp.
A new plant growth regulator, hydroxysulochrin (1), together with sulochrin (2) was isolated from the culture filtrate of Aureobasidium sp. grown on a malt extract medium. The structures of 1 and 2 were established by spectroscopic methods. 1 and 2 inhibited tea pollen tube growth by 41% and 36% of the control value at a concentration of 100 mg/l, respectively. However, 1 and 2 showed no inhibitory effect on the growth of lettuce seedlings from 0.1 mg/l to 100 mg/l.
Department of Environmental Chemistry, Faculty of Engineering, Kyushu Kyoritsu University, 1-8 Jiyugaoka, Yahatanishi, Kitakyushu 807-8585, Japan.
Atsumi
A
Shimada
Chisako
C
Shiokawa
Miyako
M
Kusano
Shozo
S
Fujioka
Yasuo
Y
Kimura
D001565:Benzoates / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D028241:Camellia sinensis; D018545:Lactuca / Q000187:drug effects / Q000254:growth & development; D003904:Mitosporic Fungi / Q000737:chemistry*; D010937:Plant Growth Regulators / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D011058:Pollen / Q000187:drug effects* / Q000254:growth & development*; D012639:Seeds / Q000187:drug effects / Q000254:growth & development
D001565:Benzoates; D010937:Plant Growth Regulators; C111298:sulochrin