畸形细胞生物学意义的探讨  

BIOLOGICAL SIGNIFICANCE OF TERATOCYTES BIOMASS IN MEDIATING RELATIONSHIP BETEEN PARASITOID AND ITS HOST

作　　者：秦启联[1] 李瑄[1] 苗麟[1] 宋宪军[1] 任璐[1] 丁翠[1] 龚和[1] 

机构地区：[1]中国科学院动物研究所农业虫害鼠害综合治理研究国家重点实验室,北京100080

出　　处：《细胞生物学杂志》2002年第6期372-376,共5页Chinese Journal of Cell Biology

基　　金：国家自然科学基金(批准号:3987009和30000017);中国科学院知识创新工程领域前沿项目资助

摘　　要：中红侧沟茧蜂Microplitis mediator不同个体的畸形细胞在开始形成时,数目和大小比较恒定,为930±78个,直径13.6±1.8μm。到寄生后期,不同个体间的数目和大小变化很大,其变异系数分别为41.77和21.92(半径),但单位质量的寄主所含细胞的体积却相对比较恒定,变异系数为8.95。畸形细胞注射黏虫的实验表明,畸形细胞通过降低寄主的体重来抑制寄主的发育,但寄主可以克服这种抑制作用。这些结果暗示了寄主和畸形细胞两者之间存在一种营养上的关系。The number and volume of neonate Micrpilitis mediator (Hymenoplera: Braconidae) teratocytes in different individual is relative steady, whose number is 930 ± 78 and the diameter is 13. 6 ± 1. 8μm, respectively. In the late period of parasitism, the number and volume of the cell in different parasitoid wasp individual diversifies fiercely. The variation coefficients are respective 41. 77 and 2.1.92( radius) . However, the volume of the cell in unit host weight is relative constant, whose variation coefficient is 8.95. Injection of the terato- cytes into the host haemocoel shows that the cells inhibit the hast development by decreasing the host's weight. The results imply a nutri tion relation exists between the host and the teratocytes from its parasitoid wasp.

关 键 词：寄生蜂 昆虫 畸形细胞 生物学意义 

分 类 号：Q962[生物学—昆虫学] S476.3[农业科学—农业昆虫与害虫防治]