Identification of Volatiles from the Secretions and Excretions of African Wild Dogs (Lycaon pictus)
Identification of Volatiles from the Secretions and Excretions of African Wild Dogs (Lycaon pictus)
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DOI：
10.1007/s10886-012-0206-7
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发表时间：
2012-11-01
影响因子：
2.3
通讯作者：
McNutt, J. Weldon
中科院分区：
文献类型：
--
作者：
Apps, Peter;Mmualefe, Lesego;McNutt, J. Weldon
采用气相色谱/质谱法对自由放养的非洲野狗Lycaon pictus的尿液、粪便、肛门腺和包皮腺中的103种有机化合物进行了鉴定。脂肪酸是所有物质中最主要的一类化合物。除脂肪酸外，尿液主要成分为二甲基砜、1,3-丙二醇、苯甲酸、1-甲基-2,4-咪唑烷二酮和角鲨烯；粪便中含有吲哚和胆固醇；且均含有2-哌啶酮、苯酚、4-甲基苯酚、苯乙酸和苯丙酸等化合物。肛门腺分泌物尤其富含胆固醇和脂肪酸，包皮腺分泌物富含角鲨烯。据报道，大多数已鉴定的化合物来自其他哺乳动物，包括与非洲野狗共生的物种。11种非洲野狗的成分以前没有在哺乳动物中报道过，也没有在同域物种中发现过；其中一种成分，1-甲基咪唑-5-甲醛，以前没有作为天然产物报道。在尿液、粪便和肛门腺分泌物的化学成分方面，非洲野狗与其他犬科动物明显不同。
Gas chromatography/mass spectrometry was used to identify 103 organic compounds from urine, feces, anal glands, and preputial glands of free-ranging African wild dogs, Lycaon pictus. Aliphatic acids were the dominant class of compound in all materials. In addition to aliphatic acids, urine contained dimethyl sulfone, 1,3-propanediol, benzoic acid, 1-methyl-2,4-imidazolidinedione, and squalene as major components: feces contained indole and cholesterol; and both contained 2-piperidone, phenol, 4-methyl phenol, benzeneacetic acid, and benzenepropanoic acid and other compounds. Anal gland secretion was particularly rich in cholesterol and fatty acids, and preputial gland secretion rich in squalene. A large majority of the identified compounds have been reported from other mammals, including species sympatric with African wild dogs. Eleven of the African wild dog components have not been reported previously from mammals and have not been found in sympatric species; one component, 1-methylimidazole-5-carboxaldehyde has not been reported previously as a natural product. In the chemical profiles of their urine, feces, and anal gland secretion African wild dogs differ markedly from other canids.