钱路兵, 张梦蝶, 刘金林, 等. 川滇桤木4种气味活性物质对云南切梢小蠹胚后发育的影响[J]. 西南林业大学学报(自然科学), 2023, 43(3): 96–102 . DOI: 10.11929/j.swfu.202111014
引用本文: 钱路兵, 张梦蝶, 刘金林, 等. 川滇桤木4种气味活性物质对云南切梢小蠹胚后发育的影响[J]. 西南林业大学学报(自然科学), 2023, 43(3): 96–102 . DOI: 10.11929/j.swfu.202111014
Qian Lubing, Zhang Mengdie, Liu Jinlin, Li Zongbo. Effects of 4 Kinds of Odor-active Compounds of Non-host Alnus ferdinandi-coburgii on the Post-embryonic Development of Tomicus yunnanensis(Coleoptera: Curculionidae: Scolytinae)[J]. Journal of Southwest Forestry University, 2023, 43(3): 96-102. DOI: 10.11929/j.swfu.202111014
Citation: Qian Lubing, Zhang Mengdie, Liu Jinlin, Li Zongbo. Effects of 4 Kinds of Odor-active Compounds of Non-host Alnus ferdinandi-coburgii on the Post-embryonic Development of Tomicus yunnanensis(Coleoptera: Curculionidae: Scolytinae)[J]. Journal of Southwest Forestry University, 2023, 43(3): 96-102. DOI: 10.11929/j.swfu.202111014

川滇桤木4种气味活性物质对云南切梢小蠹胚后发育的影响

Effects of 4 Kinds of Odor-active Compounds of Non-host Alnus ferdinandi-coburgii on the Post-embryonic Development of Tomicus yunnanensis(Coleoptera: Curculionidae: Scolytinae)

  • 摘要: 为了验证非寄主植物气味胁迫是否会抑制害虫的繁殖机能,采用前期筛选的川滇桤木气味活性物质—对乙基苯乙酮、反−2−己烯−1−醇、顺−4−己烯−1−醇、4−烯丙基苯甲醚对云南切梢小蠹的胚后发育进行测定。结果表明:4种气味成分胁迫对云南切梢小蠹产卵量的影响均较小,但能够显著增加其母坑道的长度(P<0.01)。卵孵化后,反−2−己烯−1−醇、对乙基苯乙酮和4−烯丙基苯甲醚对幼虫的体长增长呈下降趋势,而顺−4−己烯−1−醇则呈上升趋势,体质量有一定增加,但蛹期和新羽化成虫的个体则与此相反,特别是顺−4−己烯−1−醇和反−2−己烯−1−醇,前者对蛹体长和体质量的降幅为16.63%和20.09%,后者对成虫降幅则为6.95%和15.78%。表明4种川滇桤木气味活性物质均能明显干扰云南切梢小蠹的胚后发育,特别是绿叶气味成分反−2−己烯−1−醇和顺−4−己烯−1−醇能够直接降低蛹和成虫的个体大小和体质量。

     

    Abstract: To broaden the knowledge on the pest declining fertility induced by the stressor of non-host plant odors, the post-embryonic developments of Yunnan pine shoot beetle, Tomicus yunnanensis, were tested by using odor-active compounds of Alnus ferdinandi-coburgii, including 4−allylanisole, trans−2−hexen−1−ol, (Z)−hexen−4−en−1−ol, and 4−ethylacetophenone, based on electrophysiological and behavioral responses of this beetle. The results showed the average egg productions per female individual were no significant difference among the 4 odor-stressed compounds, but the length of maternal gallery has an obvious increase(P<0.01). After hatching from their eggs, the lengthened rate of larval body length showed a declining trend in the stressor of trans−2−hexen−1−ol and 4−allylanisole as well as 4−allylanisole, but having an increase trend in(Z)−hexen−4−en−1−ol. All of compounds could gain higher weight than control group. Furthermore, there is a opposite trend in pupa and newly eclosed individual, especially for(Z)−hexen−4−en−1−ol and trans−2−hexen−1−ol. The former could have reduced the relative body length and weight for 16.63% and 20.09% in pupa, the latter is 6.95% and 15.78% in the newly adults, respectively. The results showed that the 4 odor-active compounds of non-host A. ferdinandi-coburgii could significantly interfere with the post-embryonic development of T. yunnanensis, especially the two green leaf volatiles trans-2-Hexen-1-ol and(Z)-Hex-4-en-1-ol could directly reduce the body size and weight of pupae and newly emerged adults.

     

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