绿僵菌侵染后东亚飞蝗营养生理参数变化研究
Nutrition physiological parameter changes of Locusta migratoria manilensis (Meyen) infected with Metarhizium anisopliae
涂雄兵1,2**,李志红2,牙森·沙力1,张泽华1***
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作者单位：1中国农业科学院植物保护研究所农业部生物防治重点开放实验室北京100193；2中国农业大学农学与生物技术学院昆虫系北京100193
中文关键词：东亚飞蝗， 绿僵菌， 温度， 生长发育， 取食量
英文关键词：wordsLocusta migratoria manilensis, Metarhizium anisopliae, temperature, growth and development, food consumption
中文摘要： 本文采用饵剂饲喂方法研究东亚飞蝗Locusta migratoria manilensis (Meyen)营养生理参数变化，结果表明：绿僵菌(Metarhizium anisopliae)侵染后，5个温度梯度下蝻期总取食量分别为96.4、108.3、131.9、103.2、249.5 mg；21、24、27、30℃ 4个温度梯度下雄成虫总取食量为93.1、121.8、109.0、237.5 mg，雌成虫为108.7、195.5、234.7、114.7 mg。随温度升高，蝻期近似消化力降低，食物转化率升高，低温时转化率为负值。21~30℃范围内雄成虫近似消化力在各温度间无显著差异，雌成虫先升后降；24~30℃范围内随温度升高，雄成虫食物转化率降低，雌成虫无显著差异。与对照相比：同一温度下对照总取食量极显著高于处理试虫。绿僵菌侵染前后不同发育阶段的取食比较表明：对照试虫随龄期增长，日取食量增大，且雌成虫大于雄成虫；对照试虫总取食量变化规律与日取食量相同；而处理试虫在不同发育阶段日取食量和总取食量变化没有表现出一定规律性。
英文摘要： We investigated changes in the nutritional physiological parameters of Locusta migratoria manilensis (Meyen) infected with Metarhizium anisopliae at 18, 21, 24, 27 and 30℃. Total food consumption of 3rd-5th instar nymphs infected with M. anisopliae was 96.4, 108.3, 131.9, 103.2 and 249.5 mg respectively. The total food consumption of infected adults at 21, 24, 27 and 30℃, was 931, 1218, 109.0 and 237.5 mg, respectively for males, and 108.7、195.5、234.7、114.7 mg for females. The approximate digestive efficiency of infected nymphs decreased, and conversion efficiency increased, with increasing temperature, the latter being a negative value at lower temperatures. There were no significant differences in the approximate digestive efficiency of infected male adults, but that of infected female adults decreased after initially rising. The conversion efficiency of infected male adults decreased from 24 to 30℃, but that of infected female adults did not. The total food consumption of infected locusts was much less than that of CK locusts. We also studied changes in the food consumption of different developmental stages; the daily food consumption of CK nymphs increased at constant temperature and that of female adults was higher than that of male adults. Changes in the total food consumption of CK locusts were the same as changes in daily food consumption. However, there was no obvious relationship between these paramenters in locusts infected with M. anisopliae.