(Z)-2-(3,3-二甲基环己烯)-乙醇作为聚集信息素成分的研究

IF 1.6 3区 环境科学与生态学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
Lina Viklund, Joakim Bång, Martin Schroeder, Erik Hedenström
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引用次数: 2

摘要

Polygraphus属的树皮甲虫最近与欧洲云杉树皮甲虫Ips typographus一起参与了瑞典中部的大规模树皮甲虫爆发。该地区有三种蓼属植物;多纹测谎仪、点纹测谎仪和次不透明测谎仪。有效的信息素诱捕器将有助于进一步研究这些物种及其在树皮甲虫爆发中的作用。信息素化合物已经在p.p poligraphus和p.p punctifrons中发现,但在p.p subopacus中尚未发现。因此,我们在实验室中允许雄性和雌性在挪威云杉(Picea abies)茎段的树皮中钻洞。用SPME和GC-MS对钻孔昆虫的挥发性有机化合物进行了分析,观察到几种雄性特有的化合物。雄性特异性化合物为3-甲基-3-丁烯-1-醇、3-甲基-2-丁烯-1-醇、3-甲基-2-丁烯-醇、香樟醇、(Z)-2-(3,3-二甲基环己基)-乙醇、(E)-2-(3,3-二甲基环己基)-乙醛、(E)-2-(3,3-二甲基环己基)-乙醛、香樟醇和γ-异戊基醇。(Z)-2-(3,3-二甲基环己烯)-乙醇[(Z)- dmche]为主要的雄性特异性化合物,而(E)-异构体[(E)- dmche]为次要化合物。这两种化合物对亚光棘猴雌雄触须的EAG分析均有阳性反应。因此,(Z)-和(E)- dmche在瑞典中部的野外试验中被使用,但只有(Z)- dmche被发现对雄性和雌性P. subopacus有吸引力。因此,(Z)-DMCHE被确定为亚光棘茅聚集信息素的一个组成部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Identification of male produced compounds in the bark beetle Polygraphus subopacus and establishment of (Z)-2-(3,3-dimethylcyclohexylidene)-ethanol as an aggregation pheromone component

Bark beetles of the genus Polygraphus have recently been involved in large bark beetle outbreaks in central Sweden, together with the European spruce bark beetle Ips typographus. Three species of Polygraphus can be found in this region; Polygraphus poligraphus, Polygraphus punctifrons and Polygraphus subopacus. Efficient pheromone traps would facilitate further investigations of these species and their role in bark beetle outbreaks. Pheromone compounds have previously been identified in P. poligraphus and P. punctifrons, but not in P. subopacus. Thus, we allowed males and females of P. subopacus to bore in the bark of stem sections of Norway spruce (Picea abies) in the laboratory. Volatile organic compounds from boring insects were sampled with SPME and analysed with GC–MS and several male-specific compounds were observed. The male specific compounds were 3-methyl-3-buten-1-ol, 3-methyl-2-buten-1-ol, 3-methyl-2-butenal, grandisol, fragranol, (Z)-2-(3,3-dimethylcyclohexylidene)-ethanol, (E)-2-(3,3-dimethylcyclohexylidene)-ethanol, (Z)-2-(3,3-dimethylcyclohexylidene)-acetaldehyde, (E)-2-(3,3-dimethylcyclohexylidene)-acetaldehyde, geranial and γ-isogeraniol. (Z)-2-(3,3-dimethylcyclohexylidene)-ethanol, [(Z)-DMCHE], was identified from GC–MS analysis to be the major male-specific compound while the (E)-isomer, [(E)-DMCHE], was found as a minor compound. These two compounds gave positive responses in EAG analyses with antennae from males and females of P. subopacus. Thus, (Z)- and (E)-DMCHE were used in a field experiment in central Sweden but only (Z)-DMCHE was found to be attractive to males and females of P. subopacus. Consequently, (Z)-DMCHE was established to be a component of P. subopacus aggregation pheromone.

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来源期刊
Chemoecology
Chemoecology 环境科学-生化与分子生物学
CiteScore
4.20
自引率
0.00%
发文量
11
审稿时长
>36 weeks
期刊介绍: It is the aim of Chemoecology to promote and stimulate basic science in the field of chemical ecology by publishing research papers that integrate evolution and/or ecology and chemistry in an attempt to increase our understanding of the biological significance of natural products. Its scopes cover the evolutionary biology, mechanisms and chemistry of biotic interactions and the evolution and synthesis of the underlying natural products. Manuscripts on the evolution and ecology of trophic relationships, intra- and interspecific communication, competition, and other kinds of chemical communication in all types of organismic interactions will be considered suitable for publication. Ecological studies of trophic interactions will be considered also if they are based on the information of the transmission of natural products (e.g. fatty acids) through the food-chain. Chemoecology further publishes papers that relate to the evolution and ecology of interactions mediated by non-volatile compounds (e.g. adhesive secretions). Mechanistic approaches may include the identification, biosynthesis and metabolism of substances that carry information and the elucidation of receptor- and transduction systems using physiological, biochemical and molecular techniques. Papers describing the structure and functional morphology of organs involved in chemical communication will also be considered.
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