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Electroantennographic activity of 21 aliphatic compounds that bind well to a locust odorant-binding protein

文献类型： 外文期刊

作者： Li, Jia 1 ; Zhang, Long 2 ;

作者机构： 1.Shenyang Agr Univ, Plant Protect Coll, Shenyang, Peoples R China

2.China Agr Univ, Coll Grassland Sci & Technol, 2 Yuanmingyuan West Rd, Beijing 100193, Peoples R China

3.Shandong Acad Agr Sci, Inst Plant Protect, Jinan, Peoples R China

关键词： aliphatic compounds; electroantennography; locust; odorant binding protein

期刊名称：ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：2.454； 五年影响因子：2.11 ）

ISSN： 0739-4462

年卷期： 2022 年 110 卷 3 期

页码：

收录情况： SCI

摘要： Odorants that bind well to odorant-binding proteins (OBPs) often trigger olfactory responses and have important biological significance. The locust Locusta migratoria (Meyen) (Orthoptera: Acrididae) is a serious agricultural pest. Twenty-one saturated aliphatic compounds with carbon-oxygen bonds and straight chains of 10-17 carbon atoms bind well to an L. migratoria OBP. In this study, olfactory activities of these aliphatic compounds on L. migratoria adult males were tested by electroantennography (EAG) and comparatively analyzed. Four alcohols (undecanol, dodecanol, tridecanol, and tetradecanol), two ketones (2-dodecanone and 2-tridecanone), and two esters (ethyl octanoate and ethyl nonanoate) triggered strong EAG responses, and there was no significant difference between them. The results suggest that the eight compounds are more likely to have important biological significance than the other compounds. Moreover, we found that there is not necessarily a positive correlation between the olfactory activity of odorants and their binding ability with OBP. The study contributes to understanding the odorants with biological significance for L. migratoria and the molecular mechanism of the locust's olfaction.

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