山西杉苞蚧蜡泌物的超微形态与化学成分研究

编号 zgly0000366148

文献类型 期刊论文

文献题名 山西杉苞蚧蜡泌物的超微形态与化学成分研究

作者 谢映平  薛皎亮  郑乐怡 

作者单位 山西大学生命科学与技术学院 

母体文献 林业科学 

年卷期 2005,41(3)

页码 206-211,i002

年份 2005 

分类号 S888.72  TQ172.12 

关键词 化学成分研究  超微形态  蜡泌物  山西 

文摘内容 The ultra-morphology and chemical composition of waxes secreted by the scale insect Physokermes shartxiensis (Homoptera: Coccidae) was researched with the techniques of scanning electron microscope (SEM), infrared absorption spectra(IR) and gas chromatography/mass spectrometry (GC/MS). The result indicated that the scale insect secreted wet wax in its nymph stage. The wet wax coagulated into translucent wax covering on the body surface. However, the female adult secreted its wax secretion with white color and long thread form. According to the infrared absorption spectra characteristic of the waxes, it can be known that the both waxes either from male nymph or female adult were composed by a series of saturated and unsaturated long carbon chain compounds. But the two waxes have different in the chemical functional group's kind and numbers that composed the compounds, because of the differences in absorption peaks' numbers and forms which appeared in the two infrared spectra from the wave number 1 800 cm^-1 to 1 000 cm^-1. Through detected with GC/MS, 14 compounds with carbon atomnumber form C13 to C32 were obtained form the wax of the male scale insect. These compounds included 5 saturated higher fatty acids, 1 unsaturated higher fatty acid, 1 saturated higher fatty alcohol, 1 unsaturated higher fatty alcohol, 1 unsaturated ester,1 saturated aldehyde, and 4 saturated alkane compounds。