New plant growth promoters, repraesentins A, B and C, from Lactarius repraesentaneus.
Three new plant growth regulatory sesquiterpenoids were isolated from the Lactarius repraesentaneus fungus. Their structures were elucidated to be a protoilludene sesquiterpene, namely repraesentin A (1), and two related sesquiterpenes, namely repraesentins B (2) and C (3). Compounds 1-3 showed promotion activities toward the radicle elongation of lettuce seedlings by 136%, 118% and 184% at 67 ppm, respectively.
Hirota
Mitsuru
M
Department of Bioscience and Biotechnology, Faculty of Agriculture, Shinshu University, Kami-ina, Nagano, Japan. hirotam@gipmc.shinshu-u.ac.jp
Shimizu
Yuji
Y
Kamo
Tsunashi
T
Makabe
Hidefumi
H
Shibata
Hisao
H
D005658:Fungi / Q000737:chemistry*; D006860:Hydrogen Bonding; D018545:Lactuca / Q000187:drug effects / Q000254:growth & development; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010937:Plant Growth Regulators / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*
D010937:Plant Growth Regulators; D012717:Sesquiterpenes; C485585:repraesentin A; C485583:repraesentin B; C485584:repraesentin C