首页> 外文期刊>Naturwissenschaften >A new C12 alcohol identified as a sex pheromone and a trail-following pheromone in termites: the diene (Z,Z)-dodeca-3,6-dien-1-ol
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A new C12 alcohol identified as a sex pheromone and a trail-following pheromone in termites: the diene (Z,Z)-dodeca-3,6-dien-1-ol

机译:一种新的C12醇被鉴定为白蚁中的性信息素和跟踪信息素:二烯(Z,Z)-dodeca-3,6-dien-1-ol

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摘要

The diunsaturated C12 alcohol (Z,Z)-dodeca-3,6-dien-1-ol (dodecadienol) has been characterized by GC-MS and FTIR as a novel releaser pheromone in termites. This alcohol identified in Ancistrotermes pakistanicus (Termitidae, Macrotermitinae) possesses a double pheromonal function which again illustrates the chemical parsimony of termites compared with other social insects. In workers, dodecadienol elicits trail-following at a very low concentration (activity threshold at 0.1 pg/cm of trail); in male alates it induces trail-following at a low concentration (1–10 pg/cm) and sexual attraction at a higher concentration (about 1 ng). Traces of the monounsaturated C12 alcohol (Z)-dodec-3-en-1-ol (dodecenol), known as a trail pheromone of several Macrotermitinae, were also found in the sternal gland extracts of A. pakistanicus, although only dodecadienol was present at the surface of the sternal gland. Workers of A. pakistanicus are not sensitive to dodecenol, but they are as sensitive to dodecatrienol as to dodecadienol. However, in the study area (Vietnam), A. pakistanicus is living in sympatry only with those Macrotermitinae using dodecenol as a trail pheromone, the foraging populations therefore being well isolated through their respective trail pheromones. The presence of three types of unsaturated C12 alcohols as releaser pheromones in the only Macrotermitinae subfamily is discussed, and a possible biosynthetic pathway from linoleic acid is proposed for dodecadienol.
机译:通过GC-MS和FTIR将双不饱和C12醇(Z,Z)-dodeca-3,6-dien-1-ol(dodecadienol)表征为白蚁中的新型释放信息素。巴基斯坦Ancistrotermes pakistanicus(Termtermidae,Macrotermitinae)鉴定出的这种醇具有双重信息素功能,与其他社交昆虫相比,白蚁的化学简约性再次得到了说明。在工人中,十二碳烯醇以非常低的浓度引起尾随(尾随活动阈值为0.1 pg / cm);在雄性阿拉特中,低浓度(1-10 pg / cm)会引起尾随,而高浓度(约1 ng)会引起性吸引。在巴基斯坦乳杆菌的胸腺提取物中也发现了痕量的单不饱和C12醇(Z)-十二碳烯-3-烯-1-醇(十二碳烯醇),也被称为几种大白蚁的尾信息素,尽管仅存在十二碳烯醇。在胸骨表面。巴基斯坦曲霉的工人对十二烯醇不敏感,但对十二碳烯烯醇的敏感性与对十二碳烯烯醇的敏感性一样。但是,在研究区(越南),巴基斯坦曲霉仅与那些使用十二烯酚作为尾迹信息素的大白蚁生活在同居中,因此觅食种群可通过各自的尾迹信息素很好地隔离。讨论了在唯一的大白蚁亚科中存在三种类型的不饱和C12醇作为释放信息素,并提出了亚油酸可能的十二碳烯醇生物合成途径。

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  • 来源
    《Naturwissenschaften》 |2004年第1期|34-39|共6页
  • 作者单位

    CNRS UMR 5548 “Développement-Communication Chimique” Université de Bourgogne;

    CNRS UMR 5548 “Développement-Communication Chimique” Université de Bourgogne;

    Unité Mixte INRA/ENESAD de Recherches sur les Arômes INRA;

    Laboratoire de Phytopharmacie INRA;

    CSIRO Entomology;

    CNRS UMR 5548 “Développement-Communication Chimique” Université de Bourgogne;

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