›› 2005, Vol. 48 ›› Issue (4): 514-517.

• RESEARCH PAPERS • Previous Articles     Next Articles

Electroantennogram responses of Acantholyda posticalis Matsumura to volatiles of different trees

ZHANG Tong-Xin, CUI Wei-Zheng, SUN Xu-Gen, ZHANG Wei-Guang, LIANG Zhong-Gui   

  • Online:2005-09-07 Published:2005-08-20

Abstract:

With the MS302 analysis system for biological signals, the EAG response of Acantholyda posticalis Matsumura adult to volatiles of different tree species was assayed. The results showed that female A. posticalis adult was sensitive to Pinus tabulaeformis, P. densiflora and P. armandi, which it was addicted to. To volatiles of Pinus tabulaeformis, P. densiflora and P. armandi, the electrofrequency of the female adult was 45.2, 42.1 and 42.3 times per second, respectively and its electrovoltage was 1.022 mV, 1.139 mV and 0.706 mV, respectively. There was faint EAG response to the nonhost tree specie Platycladus orientalis, and no response to the air. The electrofrequency of female adult to different flux (1.7 mL/s, 17 mL/s, 85 mL/s) of the volatiles of P. tabulaeformis was 24.8, 45.2 and 46.6 times per second, respectively; its electrovoltage was 0.533 mV, 1.022 mV and 1.316 mV, respectively. This indicated that the EAG response changed with the different flux of volatiles.

 

Key words: Acantholyda posticalis Matsmura, pine tree, volatile, electroantennogram, host selection