Ovipositional response of Culex pipiens pallens to common species of plants used in river ecological restoration
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摘要: 比较研究了石菖蒲、香菇草、鱼腥草、粉绿狐尾藻和绿薄荷5种植物及其挥发性物质对淡色库蚊产卵行为的影响.结果表明,石菖蒲的蚊虫产卵活性指数(OAI)值为+0.58,抑制率为0%,具有较强的引诱作用;香菇草、鱼腥草和粉绿狐尾藻的OAI值分别为-0.70、-0.64和-0.16,抑制率分别为82.46%、78.36%和27.05%,其中香菇草和鱼腥草的OAI值均小于-0.30,可作为抑制剂;5种植物中,绿薄荷的抑制作用最强(OAI=-1.00,ER=100.00%),最适合作为驱蚊植物.挥发性有机物中苯类化合物与OAI值呈显著正相关(r=0.09,p < 0.05),萜烯类中的单萜烯类与OAI值呈显著负相关(r=-0.09,p < 0.05).本文为河道修复及蚊虫防治的协同发展提供了理论依据.Abstract: This study tested the ovipositional response of Cx. pipiens pallens to five species of plants and their volatiles:Acorus tatarinowii, Hydrocotyle vulgaris, Houttuynia cordata Thunb, Myriophyllum aquaticum (Vell.) Verdc. and Mentha spicata. The results showed that the oviposition activity index (OAI) value of Acorus tatarinowii was +0.58 with an effective repellency (ER) of 0%; Hence, Acorus tatarinowii can be considered as an oviposition attractant/stimulant. The OAI of Hydrocotyle vulgaris, Houttuynia cordata Thunb, and Myriophyllum aquaticum (Vell.) Verdc were measured as -0.70, -0.64 and -0.16 with an ER of 82.46%, 78.36% and 27.05%, respectively. Among these, Hydrocotyle vulgaris and Houttuynia cordata Thunb can be considered as repellents/deterrents. Meanwhile, the OAI of Mentha spicata was -1.00 with an ER of 100%, i.e., the strongest inhibiting effect, and hence considered the most suitable plant for repelling mosquitos. According to correlation analyses, there were significantly negative correlations between benzenoids and OAI values (p < 0.05). Terpenes, especially monoterpenes, had a significant positive correlation with OAI values (p < 0.05). This study provides a basis for the synergetic development of river ecological restoration and mosquito control.
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Key words:
- phytochemicals /
- Culex pipiens pallens /
- ovipositional selection
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图 1 蚊虫嗅觉系统在产卵选择行为中的调控[12]
Fig. 1 Oviposition site selection behavior of the mosquito olfactory system
表 1 植物鲜重
Tab. 1 Fresh weight of plants
植物 鲜重/g 石菖蒲 2.947 香菇草 2.913 鱼腥草 2.315 粉绿狐尾藻 2.587 绿薄荷 2.027 表 2 淡色库蚊在不同植物条件下的产卵反应
Tab. 2 Ovipositional response of Culex pipiens pallens to five different plants
植物 产卵数* OAI ER 石菖蒲 465.00± 164.59 +0.58 0 香菇草 21.40± 13.38 -0.70 82.46% 鱼腥草 26.40± 20.53 -0.64 78.36% 粉绿狐尾藻 89.00± 37.88 -0.16 27.05% 绿薄荷 0.00± 0.00 -1.00 100.00% 注:*产卵数为平均值±标准差, 数量n=5 表 3 5种植物挥发物中主要成分的相对含量及与OAI值的相关性
Tab. 3 Relative composition of major chemical components from volatiles of the five plants and its correlation with OAI values
挥发性有机物种类 化合物的相对含量 相关系数 石菖蒲a/% 香菇草a/% 鱼腥草a/% 粉绿狐尾藻a/% 绿薄荷a/% 酯类 0.67 - 0.02 4.12 0.18 0.60 酚类 0.51 - 0.17 3.28 - 0.87 醇类 2.41 0.02 28.04 - 6.82 -0.30 酮类 0.43 - 5.94 2.04 25.07 -0.40 醛类 0.09 - - 1.87 - 0.78 醚类 1.68 - 4.07 2.17 - 0.56 链状烷烃 1.03 26.76 0.24 27.00 - 0.50 其他烯烃 13.03 20.61 12.38 18.93 1.70 0.30 苯类 0.41 0.12 0.39 3.13 - 0.90* 酸类 - - - 0.18 - 0.35 萜烯类 单萜烯 1.53 5.77 3.13 - 45.15 -0.90* 倍半萜烯 32.68 42.98 33.24 - 20.20 -0.20 小计 34.21 48.75 36.37 - 65.35 -0.90* 注:a表示5种植物中每种主要化合物成分的相对含量; *指在0.05水平上显著相关 -
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