%0 Journal Article
%T Effects of tobacco volatiles on ovipositing behaviors of two sibling Helicoverpa species and volatile chemical analysis<br>烟草挥发物对2近缘种夜蛾产卵行为的影响及其成分分析
%A XUE Wei-Wei
%A FU Xiao-Wei
%A LUO Mei-Hao
%A GUO Xian-Ru
%A YUAN Guo-Hui
%A <br>薛伟伟
%A 付晓伟
%A 罗梅浩
%A 郭线茹
%A 原国辉
%J 生态学报
%D 2009
%I 
%X Oligophagous Helicoverpa assulta (Guenée) and polyphagous H. armigera (Hübner) are two sibling species, with tobacco as the shared host-plant. The effects of plant volatiles from one variety of Nicotiana tabacum and four varieties of N. rustica on electrophysiological and behavioral responses of these two insect species were investigated in the laboratory. The results indicated that virgin and mated females of H. assulta elicited stronger EAG and behavioral responses to four tested N. rustica varieties than to N. tabacum, while H. armigera was reverse in responses. Females of the two Helicoverpa species responded more actively in EAG and behavioral experiments to the volatiles of tested tobacco varieties than males, so there were significant sexual differences of the two sibling species. The results of gas chromatography-mass spectrum (GC-MS) showed that, in comparison with K326, variety "makhorka" contained higher amount of nicotine, more sorts of green leaf volatiles and less amount of aromatic compounds, suggesting that the difference in sorts and relative concentrations of tobacco volatiles may lead to the different ovipositing preferences of two sibling Helicoverpa species to N. tabacum and N. rustica tobacco plants.
%K tobacco volatiles
%K Helicoverpa assulta
%K H
%K armigera
%K electrophysiological response
%K behavioral response
%K chemical analysis<br>烟草挥发物
%K 烟夜蛾
%K 棉铃虫
%K 电生理反应
%K 行为反应
%K 化学分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=0854FF22CD39BA4B9EDD6B7E8C021565&yid=DE12191FBD62783C&vid=771469D9D58C34FF&iid=708DD6B15D2464E8&sid=702354654C750E24&eid=DC1B68B7FE0A82C1&journal_id=1000-0933&journal_name=生态学报&referenced_num=0&reference_num=39