刺桐姬小蜂雌成虫对寄主植物挥发物的嗅觉行为反应  

The olfactory behavioral responses of Quadrastichus erythrinae Kim to volatiles of host plant Erythrina spp.

作　　者：李军[1,2] 梁广文[2] 郭强[3] 蒋露 戴建青 韩诗畴[1] 

机构地区：[1]广东省昆虫研究所,广东省野生动物保护与利用公共实验室,广东广州510260 [2]华南农业大学昆虫生态研究室,广东广州510642 [3]深圳市野生动植物保护管理处,广东深圳518008

出　　处：《华南农业大学学报》2014年第1期55-59,共5页Journal of South China Agricultural University

基　　金：广东省科技计划项目(2010B031000018);深圳市野生动植物保护管理处合作项目

摘　　要：【目的】探明刺桐姬小蜂Quadrastichus erythrinae Kim对寄主植物的嗅觉行为反应.【方法】利用Y型嗅觉仪测定了刺桐姬小蜂对寄主植物11种挥发物(乙酸叶醇酯、4-溴丁醚苄酯、苯甲腈、1,2-二甲苯、α-法呢烯、3-蒈烯、奎诺二甲基丙烯酸酯、柏木烯醇、水杨酸甲酯、芳樟醇、法呢醇)的嗅觉行为反应.【结果和结论】刺桐姬小蜂雌成虫对刺桐属植物挥发物中的11种化合物均具有较强的行为反应;通过嗅觉反应率、选择反应率及选择系数的研究比较,明确了不同物质及不同浓度溶液对刺桐姬小蜂的行为影响;刺桐姬小蜂对寄主挥发物具有一定的嗅觉反应,而且随着各物质浓度的增大而趋于强烈;除苯甲腈外,其余化合物的选择反应率均在50%以上,而且随着化合物浓度的增大而增大;苯甲腈在原样和稀释10倍浓度时,刺桐姬小蜂呈负趋性,并且与其他化合物的反应差异显著.[ Objective ] Quadrastichus erythrinae Kim is a new invasive pest on host plant Erythrina spp. in China. Investigation on interaction between the pest and its host plant can be helpful for developing control strategies. [ Method ] The olfactory behavioral responses of the adult wasps toward eleven host plant volatiles were tested under the Y-type olfactometer. [ Result and conclusion ] Adults of Q. erythri- nae showed strong responses to all tested volatiles. Wasps displayed different behavioral responses to dif- ferent substances in different concentrations. Different olfactory parameters, such as olfactory reactive rate, olfactory selective reactive rate, and olfactory selective coefficient were used to value the wasps＇ re- sponses. The selective reaction rates of volatiles were above 50% except for compounds of benzonitile, which became more intense with the increase of compound concentration. The adult wasps were negatively chemotactic when under the concentration of unvarnished benzonitrile and 10-fold diluted benzonitrile, which showed significant differences compared with other volatiles.

关 键 词：刺桐姬小蜂 刺桐树 植物挥发物 行为反应 

分 类 号：Q968.1[生物学—昆虫学]