摘要
本文用丁香假单胞菌Pseudomonas syringae处理亚洲玉米螟Ostrinia furnacalis(Guenée)幼虫,使用过冷却仪测定过冷却点,分析该菌株对参试幼虫耐寒能力的影响。结果表明,亚洲玉米螟5龄非滞育幼虫抗寒能力比其他龄期非滞育幼虫强。亚洲玉米螟滞育5龄幼虫抗寒能力比非滞育5龄幼虫强。使用丁香假单胞菌处理亚洲玉米螟5龄非滞育和滞育幼虫,24 h后非滞育幼虫的过冷却点和结冰点分别提高了5.14和2.83℃。5龄滞育幼虫过冷却点和结冰点分别提高了11.25和4.65℃。丁香假单胞菌菌悬液(浓度为8×108 cfu/m L)对亚洲玉米螟具有较好的杀虫效果,非滞育5龄幼虫在(15±1)℃条件下处理24 h后平均死亡率39.1%。
Effect of Pseudomonas syringae on cold tolerance of the Asian corn borer larvae, Ostrinia furnacalis（Guenée）, was analyzed by measureing the supercooling point. Results indicated that cold resistance of the non diapause 5th instar O. furnacalis larvae was stronger than that of other age groups. The cold resistance of the 5th instar diapause O. furnacalis larvae was higher than that of non diapause 5th instar larvae. When treated with Pseudomonas syringae for 24 h, the supercooling point and freezing point of non diapause 5th instar O. furnacalis larvae increased by 5.14 ℃ and 2.83 ℃, respectively; and diapause 5th instar larvae increased by 11.46 ℃ and 4.65 ℃, respectively. P. syringae（at concentration of 8×108 cfu/ml） had a good insecticidal effect on O. furnacalis, with mortality rate of non-diapause 5th instar larvae being 39.1% under 15 ℃ after 24 h.
作者
阿依谢姆古丽.亚库普
安尼瓦尔.库尔班
郭文超
AYXEMGVL Yakup ANWAR Kurban GUO Wenchao(College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China)
出处
《中国生物防治学报》
CSCD
北大核心
2017年第5期644-649,共6页
Chinese Journal of Biological Control
基金
国家自然科学基金(31260428)
关键词
亚洲玉米螟
过冷却点
低温驯化
丁香假单胞菌
抗寒能力
Ostriniafurnacalis
supercooling point
cold acclimation
Pseudomonas Syringae
cold tolerance
