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应用生态学报 ›› 2002, Vol. ›› Issue (12): 1633-1636.

• 研究论文 • 上一篇    下一篇

交配和温度对甜菜夜蛾(Spodoptera exigua)雌蛾性信息素产生的影响

董双林, 杜家纬   

  1. 中国科学院上海昆虫研究所, 上海, 200025
  • 收稿日期:2001-01-15 修回日期:2001-05-18
  • 通讯作者: 董双林,男,1964年出生,博士,副教授.主要从事昆虫化学生态学、害虫抗药性及其治理等研究,发表论文20多篇.E-mail:sldong@mail.njau.edu.cn.
  • 基金资助:
    中国科学院知识创新工程资助项目(KSCX2-1)

Effects of mating experience and temperature on sex pheromone production of beet armyworm, Spodoptera exigua

DONG Shuanglin, DU Jiawei   

  1. Shanghai Institute of Entomology, Chinese Academy of Sciences, Shanghai 200025
  • Received:2001-01-15 Revised:2001-05-18

摘要: 研究表明,交配对甜菜夜蛾雌蛾性信息素各组分的滴度、比例及其在个体间的变异均无显著的影响,因此交配不影响雌蛾在下一暗期的再次求偶和交配.环境温度对甜菜夜蛾性信息素的产生则有显著的影响.15~25℃最有利于甜菜夜蛾性信息素的产生,而10℃低温和35℃高温则使性信息素产生受到明显影响,其中以10℃低温的影响更甚.10℃低温处理不仅使各组分的滴度产生显著改变,而且使二元性信息素组分的比例受到显著影响,并使二元组分通讯信道的个体间变异明显增大(CV>10%).这些改变必将扰乱甜菜夜蛾雌雄间的正常交配.

关键词: 交配, 温度, 甜菜夜蛾, 性信息素, 土壤CO2释放, 氮肥, 硝化抑制剂, 无机碳, 土壤酸化

Abstract: Mating experience could not affect the production of sex pheromone in the female glands 24 h later, which meant that the beet armyworm females might call and mate again in next scotophase. This result explained the phenomenon why the beet armyworm could mate several times in their life under field conditions. On the contrary, ambient temperature greatly influenced the pheromone biosynthesis in the beet armyworm females. The optimal temperature for the biosynthesis of sex pheromone was between 15~25 ℃. Under the temperature beyond this range,the biosynthesis of the pheromone components was disturbed in terms of absolute titers,proportions,and their CVs. The biosynthesis of component Bwas suppressed under 35 ℃,and the proportion of Ato Bwas significantly higher. In contrast,under 10 ℃,the titer of Aand the proportions of Ato Bwere disturbed significantly,and the proportions of Ain ABand ADbinary blends changed significantly. Furthermore,the CVs of the ratios of Ato Band Ato Dbecame larger than10 % under 10 ℃.

Key words: Mating, Temperature, Spodoptera exigua, Sex pheromone, nitrification inhibitor, soil acidification, soil CO2 emission, nitrogen fertilizer, inorganic carbon

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