Behavioral responses of potato tuber moth (Phthorimaea operculella) to tobacco plant volatiles
Behavioral responses of potato tuber moth (Phthorimaea operculella) to tobacco plant volatiles
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DOI：
10.1016/s2095-3119(19)62663-8
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发表时间：
2020-02-01
影响因子：
4.8
通讯作者：
Dong Wen-xia
中科院分区：
文献类型：
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作者：
Li Xiang;Zhang Xiu-ge;Dong Wen-xia
马铃薯块茎蛾（PTM）Phthorimaea operculella，又称烟草裂虫，是烟草植物的重要害虫。关于烟草植物挥发物和 PTM 行为相互作用的知识有限。为了阐明烟草植物挥发物对PTM定向和产卵行为的影响，并鉴定潜在的PTM控制化合物，采用顶空收集法收集烟草植物挥发物，并采用气相色谱-质谱联用技术对挥发性化合物进行鉴定。采用气相色谱-触角电图检测耦合技术筛选出13种电生理活性化合物，并通过触角电图记录进一步验证了其中的9种可用化合物。 cis-3-Hexen-1-ol对雄性和雌性蛾的定向行为均表现出显着的引诱作用。壬醛和癸醛只能吸引雌性，而辛醛则对雄性有排斥作用。产卵选择实验表明，壬醛、癸醛、癸烷和十六烷酸甲酯能刺激妊娠雌虫产卵，而辛醛和2,6-双(1,1-二甲基)-4-甲基苯酚则抑制其产卵。我们的研究在列表中添加了更多可以作为潜在 PTM 威慑剂或引诱剂的化合物。
Potato tuber moth (PTM) Phthorimaea operculella, also known as tobacco splitworm, is an important pest of tobacco plants. The knowledge on the interaction of tobacco plant volatiles and PTM behavior is limited. To clarify the effect of tobacco plant volatiles on the orientation and oviposition behaviors of PTM and to identify potential compounds for PTM control, tobacco plant volatiles were collected by headspace collection method, and volatile compounds were identified by gas chromatography-mass spectrometry. Thirteen electrophysiological active compounds were screened by employing coupled gas chromatography-electroantennogram detection and from which nine available compounds were further verified by electroantennogram recording. cis-3-Hexen-1-ol showed significant attractant effect on the orientation behaviors of both male and female moths. Nonanal and decanal could only attract females, while octanal exhibited repellent effect on males. Oviposition selection experiment indicated that nonanal, decanal, decane and methyl hexadecanoate could stimulate the gravid females to lay more eggs, while octanal and 2,6-bis(1,1-dimethylenthyl)-4-methyl phenol inhibited their oviposition. Our study added more compounds to the list that could serve as potential PTM deterrents or attractants.