挥发性信息化合物对玉米螟赤眼蜂寄主选择行为的影响

›› 2007, Vol. 50 ›› Issue (5): 448-453.

挥发性信息化合物对玉米螟赤眼蜂寄主选择行为的影响

练永国，王素琴^*，白树雄，康总江，王振营，墨铁路^*

(山东农业大学植物保护学院昆虫学系，泰安 271000)

出版日期:2007-06-08 发布日期:2007-10-20
通讯作者: 王素琴，墨铁路

The effect of volatile infochemicals on host selection behavior of Trichogramma ostriniae

LIAN Yong-Guo, WANG Su-Qin, BAI Shu-Xiong, KANG Zong-Jiang, WANG Zhen-Ying, MO Tie-Lu

(College of Plant Protection, Shandong Agricultural University, Tai'an 271000, China; Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China)

Online:2007-06-08 Published:2007-10-20
Contact: WANG Su-Qin, MO Tie-Lu

摘要/Abstract

摘要： 在实验室条件下，利用“Y”型嗅觉仪测定了源于寄主亚洲玉米螟Ostrinia furnacalis (Guenée) 鳞片、卵表以及不同生理阶段的雌蛾附腺的不同浓度的提取物对玉米螟赤眼蜂Trichogramma ostriniae Pang et Chen寄主选择行为的影响,并对其引诱作用大小进行了比较。结果表明：亚洲玉米螟鳞片的正己烷提取物在0.5 mg/mL和 1 mg/mL浓度时对玉米螟赤眼蜂有明显的引诱作用；寄主卵的正己烷提取物在5块卵/mL和10块卵/mL浓度时对玉米螟赤眼蜂有显著的引诱作用，而在40块卵/mL浓度时对玉米螟赤眼蜂有极显著的驱避作用；玉米螟赤眼蜂对亚洲玉米螟交配未产卵和产卵后前期的雌蛾附腺提取液有反应，而对处女蛾和产卵后期的附腺提取液没反应。卵表提取物和附腺提取物比鳞片提取液对赤眼蜂引诱作用强，两者对赤眼蜂的引诱作用没有明显差异。

关键词: 亚洲玉米螟, 玉米螟赤眼蜂, 挥发性信息化合物, 正己烷提取物, 寄主选择行为

Abstract: The effect of hexane extracts of Asian corn borer (ACB), Ostrinia furnacalis (Guenée ) female moth scale, egg masses and accessory glands of their different physiological stages on host selection behavior of Trichogramma ostriniae were measured by using a Y-tube olfactometer in the laboratory. The results indicated that the hexane extracts of ACB scale at the concentrations 0.5 mg/mL and 1 mg/mL exhibited significant attraction for T. ostriniae. The hexane extracts of ACB egg masses at the concentrations 5 egg masses/mL and 10 egg masses/mL clearly stimulated intensive search behavior by T. ostriniae females; the hexane extract of ACB egg masses at the concentration 40 egg masses/mL, however, had extremely significant repellent action to T. ostriniae females. The hexane extract of female accessory glands of mated-females before their first oviposition and at the earlier stage after oviposition stimulated intensive search behavior by T. ostriniae females; the hexane extract of female accessory glands of virgin females and the older stage after oviposition, however, did not elicit the parasitoid's reaction. The hexane extracts of female accessory glands and egg masses elicited stronger reaction by the parasitoid, but without significant difference between both.

Key words: Ostrinia furnacalis, Trichogramma ostriniae, volatile infochemicals, hexane extract, host selection behavior

练永国，王素琴^*，白树雄，康总江，王振营，墨铁路^*. 挥发性信息化合物对玉米螟赤眼蜂寄主选择行为的影响[J]. , 2007, 50(5): 448-453.

LIAN Yong-Guo, WANG Su-Qin, BAI Shu-Xiong, KANG Zong-Jiang, WANG Zhen-Ying, MO Tie-Lu. The effect of volatile infochemicals on host selection behavior of Trichogramma ostriniae[J]. , 2007, 50(5): 448-453.

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