| 甘肃省昆虫病原线虫3个优良品系的生物学特性研究 |
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| 引用本文： | 谷黎娜,钱秀娟,刘长仲.甘肃省昆虫病原线虫3个优良品系的生物学特性研究[J].甘肃农业大学学报,2009,44(2). |
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| 作者姓名： | 谷黎娜 钱秀娟 刘长仲 |
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| 作者单位： | 甘肃农业大学草业学院昆虫学系,甘肃,兰州,730070 |
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| 基金项目： | 甘肃省高校科学研究基金，甘肃省农业生物技术研究与应用开发项目，甘肃农业大学草业学院青年教师科研启动项目 |
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| 摘 要： | 基于对大蜡螟幼虫Galleria mellonella的致病性测定,对采自甘肃省内的3个优良昆虫病原线虫品系(异小杆线虫Heterorhabditis megidis的0627 M品系、夜蛾斯氏线虫Steinernema feitiae的0619 HT品系和斯氏线虫S.krussei的0657L品系)的生物学特性进行了比较研究,结果表明:在同等质量的大蜡螟幼虫体内,0627 M品系线虫繁殖量最高,侵染周期最长;0627 M品系和0619 HT品系侵染大蜡螟所用剂量小,但相同剂量下0619 HT品系的侵染速度较高;0627 M、0619 HT、0657L 3种线虫品系的侵染活性最适温度范围分别为20~25℃、15~30℃、20~30℃;在25℃恒温下,当沙土含水量低于1.0%时,3种线虫品系均丧失侵染活性.研究表明3种线虫品系在田间害虫防治上均具有较高应用潜力.
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| 关 键 词： | 昆虫病原线虫 优良品系 斯氏线虫 异小杆线虫 生物学特性 甘肃省 |
Biological characteristics of three fine strains of insect pathogenic nematode in Gansu Province |
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| GU Li-na,QIAN Xiu-juan,LIU Chang-zhong.Biological characteristics of three fine strains of insect pathogenic nematode in Gansu Province[J].Journal of Gansu Agricultural University,2009,44(2). |
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| Authors: | GU Li-na QIAN Xiu-juan LIU Chang-zhong |
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| Institution: | GU Li-na,QIAN Xiu-juan,LIU Chang-zhong(Department of Entomology,College of Prataculture,Gansu Agricultural University,Lanzhou 730070,China) |
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| Abstract: | Based on pathogenicity detection to the larvae of Galleria mellonella as host insect,the biological characteristics of three fine strains of insect pathogenic nematode in Gansu Province,including 0627M of Heterorhabditis megidis,0619HT of Steinernema feitiae and 0657L of S.krussei,were studied.The results showed that in vivo of the same quality G.mellonella larvae,nematode reproduction of 0627M strain was the highest and its infection cycle was the longest.The dosage of 0627M strain and 0619HT strain infect... |
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| Keywords: | insect pathogenic nematode fine strain Steinernema Heterorhabditis biological characteristics Gansu Province |
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