蜈蚣(Clinopodes flavidus)的化学防御。

IF 2.3 2区 农林科学 Q1 ENTOMOLOGY
Bojan M. Mitić , Vesna B. Jovanović , Marina M. Todosijević , Margret Eckhard , Ljubica C. Vasiljević , Vele V. Tešević , Ljubodrag V. Vujisić
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引用次数: 0

摘要

化学物质对于动物与其捕食者/寄生虫之间的生物互动至关重要;其中许多半化学物质是出于防御目的而释放的。据我们所知,最具威慑力和毒性的生物源物质之一是氰化氢,某些昆虫、千足虫、蜈蚣和蛛形纲动物可以稳定且挥发性较低的分子形式储存这种物质。本研究的目的是分析一种地栖蜈蚣(Chilopoda)的这种防御机制的生物学和化学性质。黄链蜈蚣的氰化物分泌物由腹腺排出,其腺体单元位于角质层与躯干肌肉之间的空隙中,并不深入蜈蚣的体节。腹腺分泌物中除氰化氢外,还含有 2-甲基戊酸、苯甲醛、苯甲酰基氰化物、2-甲基支链 C-9 羧酸(暂定为 2-甲基辛酸)、2-苯乙酸甲酯、苯甲酸和扁桃腈,以及分子量分别为 150、66.2、59 和 55 kDa 的四种主要蛋白质。腹腺的存在与雌虫腹面远离卵和幼虫的守护行为之间的相关性表明,这两种性状之间存在功能性联系。我们希望腹腺分泌物化学成分的特异性可以作为化学分类学的一个标准,并希望对更多物种的分析有助于澄清嗜地鳖科的系统发育关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Chemical defence of a centipede (Clinopodes flavidus)

Chemical defence of a centipede (Clinopodes flavidus)

Chemical substances are of utmost importance for the biotic interactions between animals and their predators/parasites; many of these semiochemicals are emitted for defence purposes. One of the most deterrent and toxic biogenic substances we know of is hydrogen cyanide, which can be stored by certain insects, millipedes, centipedes and arachnids in the form of stable and less volatile molecules. The aim of this study was to analyse the biology and chemistry of such a defence mechanism in a geophilomorph centipede (Chilopoda). The cyanogenic secretion of Clinopodes flavidus is discharged from the ventral glands, whose glandular units are located in the space between the cuticle and the trunk muscles and do not extend deep into the segment. In addition to hydrogen cyanide, the ventral secretion contains 2-methylpentanoic acid, benzaldehyde, benzoyl cyanide, 2-methyl branched C-9 carboxylic acid (tentatively identified as 2-methyloctanoic acid), methyl 2-phenylacetate, benzoic acid and mandelonitrile as well as four major proteins with a molecular weight of 150, 66.2, 59 and 55 kDa. The correlation between the presence of ventral glands and guarding with the female’s ventral side facing away from the eggs and young indicates a functional link between these two traits. We hope that the specificity of the chemical composition of the ventral secretion could serve as a criterion for chemotaxonomy and that the analysis of more species will help to clarify the phylogenetic relationships within the Geophilomorpha.

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来源期刊
Journal of insect physiology
Journal of insect physiology 生物-昆虫学
CiteScore
4.50
自引率
4.50%
发文量
77
审稿时长
57 days
期刊介绍: All aspects of insect physiology are published in this journal which will also accept papers on the physiology of other arthropods, if the referees consider the work to be of general interest. The coverage includes endocrinology (in relation to moulting, reproduction and metabolism), pheromones, neurobiology (cellular, integrative and developmental), physiological pharmacology, nutrition (food selection, digestion and absorption), homeostasis, excretion, reproduction and behaviour. Papers covering functional genomics and molecular approaches to physiological problems will also be included. Communications on structure and applied entomology can be published if the subject matter has an explicit bearing on the physiology of arthropods. Review articles and novel method papers are also welcomed.
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