3-Methyl-1-(methylthio)-2-butene: a component in the foul-smelling defensive secretion of two Ceroglossus species (Coleoptera: Carabidae)

3-Methyl-1-(methylthio)-2-butene: a component in the foul-smelling defensive secretion of two Ceroglossus species (Coleoptera: Carabidae)
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3-甲基-1-(甲硫基)-2-丁烯:两种 Ceroglossus 物种(鞘翅目:步甲科)恶臭防御性分泌物中的一种成分

DOI:
10.1007/s00049-019-00286-0
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发表时间:
2019
期刊:
影响因子:
1.8
通讯作者:
Attygalle, Athula B.
Attygalle, Athula B.
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Xu, Sihang;Errabeli, Ramu;Will, Kipling;Arias, Elizabeth;Attygalle, Athula B.

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一种含硫化合物会使小舌舌鱼和麦哲伦舌舌鱼的防御性胃底腺液产生恶臭。通过质谱和色谱性质与化学合成标准物的比较,鉴定该化合物为3-甲基-1-(甲基硫)-2-丁烯。虽然从昆虫分泌物中已知有一些含硫化合物,但这种含硫异戊二烯衍生物以前尚未从任何节肢动物来源中表征。防御部分的其他成分包括乙酸、丙酸、异丁酸、丁酸、甲基丙烯酸、乙丙烯酸、苯甲酸和11-三煤油。从智利赤舌鱼标本中提取的样品显示出甲基丙烯酸、乙丙酸和其他酸。然而,在c的防御液中未检测到3-甲基-1-(甲基硫)-2-丁烯。chilensis。
A sulfur-containing compound causes the foul smell of the defensive pygidial gland fluid ofCeroglossus buquetiLaporte andCeroglossus magellanicusGehin. This compound was identified as 3-methyl-1-(methylthio)-2-butene by a comparison of its mass spectrum, and chromatographic properties with those of a chemically synthesized standard. Although a few sulfur compounds are known from insect secretions, this sulfur-bearing isoprene derivative has not been characterized previously from any arthropod source. Additional components in the defensive section include acetic, propanoic, isobutyric, butanoic, methacrylic, ethacrylic, tiglic and benzoic acids, and 11-tricosene. Samples prepared from specimens ofCeroglossus chilensisEschscholtz showed methacrylic, ethacrylic, and other acids. However, 3-methyl-1-(methylthio)-2-butene was not detected in the defensive fluid ofC. chilensis.
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