Xie Xiaonan, Yoneyama Kaori, Kusumoto Dai, Yamada Yoichi, Yokota Takao, Takeuchi Yasutomo, Yoneyama Koichi
Weed Science Center, Utsunomiya University, 350 Mine-machi, Utsunomiya 321-8505, Japan.
Phytochemistry. 2008 Jan;69(2):427-31. doi: 10.1016/j.phytochem.2007.07.017. Epub 2007 Sep 5.
Alectrol, a germination stimulant for root parasitic plants, was purified from root exudates of red clover (Trifolium pratense L.) and identified as a strigolactone, (+)-orobanchyl acetate [(3aS,4S,8bS,E)-8,8-dimethyl-3-(((R)-4-methyl-5-oxo-2,5-dihydrofuran-2-yloxy)methylene)-2-oxo-3,3a,4,5,6,7,8,8b-octahydro-2H-indeno[1,2-b]furan-4-yl acetate], by 1D and 2D NMR spectroscopy and ESI- and EI-MS spectrometry. Orobanchyl acetate afforded an M-42 ion in EI-MS and thus had been recognized as an isomer of strigol. Orobanchyl acetate was detected in root exudates of soybean (Glycine max L.) and cowpea (Vigina unguiculata L.) along with orobanchol.
独脚金内酯是一种根寄生植物的萌发刺激剂，从红三叶草（Trifolium pratense L.）的根系分泌物中纯化得到，并通过一维和二维核磁共振光谱以及电喷雾电离和电子轰击质谱法鉴定为一种独脚金内酯，即（+）-乙酸列当醇酯[（3aS，4S，8bS，E）-8,8-二甲基-3-（（（R）-4-甲基-5-氧代-2,5-二氢呋喃-2-基氧基）亚甲基）-2-氧代-3,3a,4,5,6,7,8,8b-八氢-2H-茚并[1,2-b]呋喃-4-基乙酸酯]。乙酸列当醇酯在电子轰击质谱中产生了一个M-42离子，因此被认为是独脚金醇的异构体。在大豆（Glycine max L.）和豇豆（Vigina unguiculata L.）的根系分泌物中检测到了乙酸列当醇酯和列当醇。
