转Bt基因水稻对二化螟绒茧蜂生物学特性的影响

›› 2004, Vol. 47 ›› Issue (1): 124-129.

转Bt基因水稻对二化螟绒茧蜂生物学特性的影响

姜永厚¹，傅强²，程家安^1*，叶恭银¹，白耀宇¹，张志涛²

出版日期:2004-02-20 发布日期:2004-02-20

Effects of transgenic Bt rice on the biological characteristics of Apanteles chilonis (Munakata) (Hymenoptera: Braconidae)

JIANG Yong-Hou¹, FU Qiang², CHENG Jia-An¹, YE Gong-Yin¹, BAI Yao-Yu¹, ZHANG Zhi-Tao²

Online:2004-02-20 Published:2004-02-20
Contact: CHENG Jia-An

摘要/Abstract

摘要： 用转Bt基因 (cry1Ab) 水稻KMD1饲喂3龄、4龄和5龄二化螟Chilo suppressalis一定时间后, 作为二化螟绒茧蜂Apanteles chilonis的寄主，研究了转基因水稻经寄主对绒茧蜂生物学特性的影响。结果发现：KMD1处理后，三个龄期幼虫的寄生率都显著下降，其中4龄和5龄达极显著水平；3龄和4龄上的结茧率显著低于对照；蜂蛹历期均短于对照，但仅3龄差异显著；从5龄幼虫所羽化的雄蜂寿命显著短于对照；蜂茧长显著短于对照；而对卵＋幼虫期、茧块茧数、蜂羽化率及性比均无显著影响。

关键词: 转Bt基因水稻, 二化螟绒茧蜂, 二化螟, 生物学特性

Abstract: Effects of rice transformed with cry1Ab (KMD1) on the biological characteristics of a parasitoid Apanteles chilonis (Munakata) through its host Chilo suppressalis were studied in the laboratory, using the 3rd, 4th and 5th instar larvae of C. suppressalis fed on the transgenic rice for a given time as hosts. The results showed that parasitized rates of host larvae fed on KMD1 were significantly (3rd instar) or very significantly (4th and 5th instar) lower than those of the control. Percentages of cocoon formation for hosts fed on KMD1 significantly reduced for the 3rd and 4th instar. Developmental period of the parasitoid pupa from hosts (3rd instar) fed on KMD1 was significantly shorter. Longevity of the male wasp from the 5th instar larva fed on KMD1 was significantly shorter. Length of wasp cocoon of KMD1 treatment was significantly shorter than the control. But no significant differences were detected in the developmental period of egg to larva, cocoon mass size, wasp emergence rate and sex ratio of the parasitoid between KMD1 treatment and the control.

Key words: Transgenic Bt rice, Apanteles chilonis, Chilo suppressalis, biological characteristics

姜永厚¹，傅强²，程家安^1*，叶恭银¹，白耀宇¹，张志涛². 转Bt基因水稻对二化螟绒茧蜂生物学特性的影响[J]. , 2004, 47(1): 124-129.

JIANG Yong-Hou¹, FU Qiang², CHENG Jia-An¹, YE Gong-Yin¹, BAI Yao-Yu¹, ZHANG Zhi-Tao². Effects of transgenic Bt rice on the biological characteristics of Apanteles chilonis (Munakata) (Hymenoptera: Braconidae)[J]. , 2004, 47(1): 124-129.

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