Sex Pheromone and Related Compounds in the Ishigaki and Okinawa Strains of the Tussock Moth<i>Orgyia postica</i>(Walker) (Lepidoptera: Lymantriidae)
作者:Sadao WAKAMURA、Norio ARAKAKI、Masanobu YAMAMOTO、Syuntaro HIRADATE、Hiroe YASUI、Kunio KINJO、Tetsuya YASUDA、Hiroyuki YAMAZAWA、Tetsu ANDO
DOI:10.1271/bbb.69.957
日期:2005.1
Two distinct electroantennographycally active (EAG-active) components, A and B, and a weakly active component C were found in a solvent extract from virgin females of the Ishigaki strain of the tussock moth, Orgyia postica (Walker). Components A, B, and C were found in the extract of the females at 4.0, 0.5, and 4.0 ng/female respectively. Components A, B, and C were identified as (6Z,9Z,11S,12S)-11,12-epoxyhenicosa-6,9-diene [(11S,12S)-1: posticlure], (6Z)-henicos-6-en-11-one (2), and (6Z,9Z)-henicosa-6,9-diene (3), respectively. Component B was absent in the extract from the Okinawa strain, in which components A and C were present at 2.0 and 1.5 ng/female respectively. (11S,12S)-1 and the racemic mixture showed attractiveness for both the Okinawa and Ishigaki strains, whereas (11R,12R)-1 did not. The addition of 2 significantly reduced the trap catches with (11S,12S)-1 on the Okinawa strain which lacked 2, while there was no significant inhibitory effect on the Ishigaki strain. The addition of 3 to (11S,12S)-1 did not significantly affect trap catches at Ishigaki or Okinawa. This confirmed that the attractant pheromone of O. postica of the Ishigaki strain is also (11S,12S)-1.
在石垣株草履蛾(Orgyia postica (Walker))雌性处女的溶剂提取物中发现了两种不同的电图活性(EAG-active)成分 A 和 B,以及一种弱活性成分 C。雌虫提取物中 A、B 和 C 的含量分别为 4.0、0.5 和 4.0 纳克/雌虫。经鉴定,成分 A、B 和 C 分别为 (6Z,9Z,11S,12S)-11,12-环氧henicosa-6,9-diene[(11S,12S)-1: posticlure]、(6Z)-henicos-6-en-11-one (2) 和 (6Z,9Z)-henicosa-6,9-diene (3)。冲绳菌株的提取物中没有成分 B,其中成分 A 和 C 的含量分别为 2.0 纳克/雌株和 1.5 纳克/雌株。(11S,12S)-1和外消旋混合物对冲绳和石垣菌株都有吸引力,而(11R,12R)-1则没有。冲绳菌株缺乏 2,而石垣菌株则没有明显的抑制作用,添加 2 后,(11S,12S)-1 对冲绳菌株的诱捕率明显下降。在(11S,12S)-1 中添加 3 对石垣和冲绳的诱捕效果没有明显影响。这证实了石垣品系 O. postica 的引诱信息素也是 (11S,12S)-1。