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昆虫病原线虫泰山Ⅰ号是小杆目异杆线虫科异杆线虫属(Heterorhabditis)线虫。1984年5月,自山东泰安苹果园土壤及桃小食心虫(简称桃小)(Carposina niponensis Walsingham)圆茧分离获得。在长江以北地区分离到这种昆虫寄生性线虫还未见有报道。其生活史包括两个世代,即卵生世代(短世代)和卵胎生世代。25℃温度下完成整个生活史需9天时间。它与一种无色杆菌(Xencrhabdus)互惠共生,线虫进入昆虫体腔便释放出其共生菌,引起昆虫败血病,48小时内导致寄主死亡。尸体变红并发出较强的生物光。本文主要报道其生活史、形态、共生菌、人工繁殖方法及对桃小的致死效果。
Entomopathogen nematode Taishan I is a member of the genus Isoptera, a family of Heterorhabditis nematodes. May 1984, since the soil in Tai’an, Shandong Province and Peach Moth (Carposina niponensis Walsingham) were isolated from the cocoon. Separation of this insect parasitic nematode north of the Yangtze River has not been reported. Its life history includes two generations, namely oviparous generation (short generation) and ovarian generation. 25 ℃ temperature to complete the entire life history takes 9 days. It interacts with an Xenobacillus (Xencrhabdus) symbiont and the nematode enters the body cavity of the insect and releases its symbiont, causing insect septicemia and causing host death within 48 hours. The body turns red and emits a strong biological light. This article mainly reports on its life history, morphology, symbionts, artificial propagation methods and the lethal effect on peach.