|
|||||
|
|
| 松果梢斑螟成虫的寄主选择 | |
| 引用本文： | 李新岗,杨立军,刘拉平,刘惠霞.松果梢斑螟成虫的寄主选择[J].林业科学,2009,45(2). |
| 作者姓名： | 李新岗 杨立军 刘拉平 刘惠霞 |
| 作者单位： | 1. 西北农林科技大学林学院,杨凌,712100 2. 西北农林科技大学测试中心,杨凌,712100 3. 西北农林科技大学植物保护学院,杨凌,712100 |
| 基金项目： | 国家自然科学基金，陕西省农业攻关课题 |
| 摘 要： | 在松果梢斑螟成虫产卵期,采用顶空吸附法和CC-:MS分析,研究虫害后油松球果萜类挥发物成分的变化.油松虫害球果(枝)单萜挥发物的释放呈现昼夜节律,并且特异性挥发组分为1R-(+)-α-蒎烯、β-香叶烯和D-柠檬烯.梢斑螟成虫为夜出性害虫,因此产卵期晚上的球果(枝)挥发物更有意义.油松和华山松球果的触角电位(EAG)测试表明:虫害球果与健康球果相比,梢斑螟(雌雄蛾)对油松虫害球果的EAG反应更明显;而对华山松虫害球果和健康球果的EAG反应差异不明显.Y-型嗅觉仪的趋向试验表明:雌成虫的寄主选择性明显高于雄虫,油松球果提取液的引诱作用高于华山松球果,而当年生针叶提取液、虫害球果及其提取液挥发物对雌成虫的引诱作用均高于健康球果;挥发物标准品测试显示,1R-(+)-β-蒎烯、β-香叶烯和D-柠檬烯组合具有明显的引诱作用.虫害油松球果及其提取液可显著刺激雌成虫产卵,表明油松虫害球果提取液组分中存在着雌成虫的产卵刺激物;华山松球果提取液的存在明显抑制了雌虫在油松虫害球果提取液滤纸上的产卵,表明华山松球果提取液中可能有产卵拒避剂. |
| 关 键 词： | 松果梢斑螟 寄主选择 产卵选择 虫害球果 萜类挥发物 |
Host Selection of Adult Dioryctria pryeri |
|
| Li xingang,Yang Lijun,Liu Laping,Liu Huixia.Host Selection of Adult Dioryctria pryeri[J].Scientia Silvae Sinicae,2009,45(2). | |
| Authors: | Li xingang Yang Lijun Liu Laping Liu Huixia |
| Institution: | 1.College of Forestry;Northwest A & F University Yangling 712100;2.Testing Centre;3.College of Plant Protection;Northwest A & F University Yangling 712100 |
| Abstract: | GC-MS was used to determine the composition and the amount of the terpene volatiles collected from the infested cones(by Gravitarmata mairgarotana larvae) by means of head space absoption,during the oviposition period of female adult Dioryctria pryeri.Results showed that 6 kinds of terpenes were found in the volatile blends of the infested and uninfested cone-shoots in Chinese Pine(Pinus tabulaeformis),and the emitting amount of the terpenes was to some extent different between night and daytime.During the ... |
| Keywords: | Dioryctria pryeri host selection oviposition selection herbivore-induced cone terpene volatiles |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |