The Third Naturally Occurring Attractant toward Zoospores of Phytopathogenic Aphanomyces cochlioides from the Spinacia oleracea Host Plant
The Third Naturally Occurring Attractant toward Zoospores of Phytopathogenic Aphanomyces cochlioides from the Spinacia oleracea Host Plant
复制标题
针对来自菠菜寄主植物的植物病原性旋状丝丝菌游动孢子的第三种天然引诱剂
DOI：
10.1271/bbb.65.1755
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Y. Ogawa
中科院分区：
文献类型：
--
作者：
S. Tahara;K. Ohkawa;T. Takayama;Y. Ogawa
菠菜叶成分的生物测定指导调查导致5，4 '-二羟基-3，3'-二甲氧基-6，7-亚甲基二氧基黄酮被鉴定为宿主植物中对其病原体Aphanomyces cochlioides游动孢子的第三种天然引诱剂。该分离物在游动孢子悬浮液中用10-5 M溶液包被的Chromosorb W AW颗粒（60-80目）周围显示出吸引活性。然而，这种活性比菠菜根中的一种引诱剂--旋孢菌素A的活性低1/100-1/1000。生物活性测定结果表明，5，3 ′，4 ′-三羟基-3-甲氧基-6，7-亚甲二氧基黄酮对菠菜中的前两种引诱剂没有引诱活性，但拮抗活性较弱。
A bioassay-guided survey of spinach leaf constituents resulted in 5,4'-dihydroxy-3,3'-dimethoxy-6,7-methylenedioxyflavone being identified as the third naturally-occurring attractant in the host plant toward the zoospores of its pathogen, Aphanomyces cochlioides. The isolate showed attracting activity around Chromosorb W AW particles (60-80 mesh) coated with a 10-5 M solution in a zoospore suspension. However, this activity was 1/100-1/1000 less than that of cochliophilin A, an attractant in the roots of spinach. Bioassays with the present isolate and related compounds revealed that 5,3',4'-trihydroxy-3-methoxy-6,7-methylenedioxyflavone did not possess attractant activity, but rather weak antagonistic activity toward the former two attractants from spinach.