摘要
前期研究发现,二化螟为害稻株对褐飞虱具有显著的引诱作用。为了鉴定对褐飞虱寄主选择行为具有显著调控作用的水稻挥发物,本文通过H型嗅觉仪研究了二化螟为害诱导水稻释放的15种重要水稻挥发物对褐飞虱寄主选择行为影响。结果显示,β-石竹烯、2-壬酮、大根香叶烯D和(3E)-4,8-二甲基壬-1,3,7-三烯对褐飞虱有显著的引诱作用;水杨酸甲酯、2-十一烷酮和(3E,7E)-4,8,12-三甲基十三-1,3,7,11-四烯对褐飞虱有显著的排斥作用;而α-蒎烯、2-十三烷酮、十三醛、苯甲酸苯甲酯、异氟尔酮、2-十五烷酮、邻伞花烯烃和肉豆蔻酸异丙酯对褐飞虱行为选择没有显著影响。结果表明,二化螟为害诱导稻株不仅释放对褐飞虱具有引诱作用的化合物,同时也释放对褐飞虱具有排斥作用的化合物,褐飞虱对二化螟为害稻株的偏爱性源于二化螟诱导水稻释放的不同化合物的综合作用。研究鉴定的对褐飞虱寄主选择行为具有显著调控作用的水稻挥发物为研制褐飞虱驱避剂和引诱剂奠定了基础。
Previous studies showed that the brown planthoppers(BPH),Nilaparvata lugens,exhibited a strong preference to rice plants that had been infested by the rice striped stem borer(SSB),Chilo suppressalis.In order to identify the rice volatiles that affect the host-searching behavior of BPH,we tested the responses of BPH to 15 key rice volatile compounds induced by SSB infestation using H-tube olfactometer.The results showed that the four compounds includingβ-caryophyllene,2-nonanone,germacrene D and(3E)-4,8-dimethyl-1,3,7-nonatriene were significantly attractive to BPH compared to the control(hexane).In contrast,the three compounds including methyl salicylate,2-undecanone,and(3E,7E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene exhibited significant repellence to BPH.No effect on BPH behaviors were detected in 8 compounds,α-pinene,2-tridecanone,(E)-2-heptenyl acetate,tridecanal,benzyl benzoate,isophorone,2-pentadecanone,o-cymene,and isopropyl myristate.In summary,rice plants infested by SSB caterpillar release volatiles both attractive and repellent to BPH,and the preference of BPH to SSB-infested rice plants is caused by combined effects of multiple volatile compounds emitted by SSB-infested plants.These results provide a basis for the preparation of repellents or attractants for controlling the brown planthoppers.
作者
汪晓龙
苏双丽
胡晓云
尹新明
李云河
WANG Xiaolong;SU Shuangli;HU Xiaoyun;YIN Xinming;LI Yunhe(College of Plant Protection,Henan Agricultural University,Zhengzhou 450002,China;State Key Laboratory for the Biology of the Plant Diseases and Insect Pests/Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China)
出处
《中国生物防治学报》
CSCD
北大核心
2023年第4期970-977,共8页
Chinese Journal of Biological Control
基金
国家自然科学基金(32120103009)。
关键词
二化螟
褐飞虱
虫害诱导水稻挥发物
引诱
驱避
Chilo suppressalis
Nilaparvata lugens
herbivore-induced rice volatiles
attraction
repellence
作者简介
汪晓龙,硕士,E-mail:hnndwxl@126.com;通信作者:尹新明,教授,E-mail:xmyin@henau.edu.cn;通信作者:李云河,研究员,liyunhe@caas.cn。
