Raspotnig Günther, Schaider Miriam, Stabentheiner Edith, Leis Hans-Jörg, Karaman Ivo
Institute of Zoology, Karl-Franzens-University, Universitätsplatz 2, 8010 Graz, Austria ; Research Unit of Osteology and Analytical Mass Spectrometry, Medical University, University Children's Hospital, Auenbruggerplatz 30, 8036 Graz, Austria.
Institute of Zoology, Karl-Franzens-University, Universitätsplatz 2, 8010 Graz, Austria ; Department of Limnology and Bio-Oceanography, University of Vienna, Althanstraße 14, 1090 Vienna, Austria.
Chemoecology. 2014;24(2):43-55. doi: 10.1007/s00049-014-0146-5. Epub 2014 Jan 31.
While considerable knowledge on the chemistry of the scent gland secretions from the opilionid suborders Laniatores and Cyphophthalmi has been compiled, it is the Palpatores (Eupnoi and Dyspnoi) where chemical data are scarce. In particular, the Dyspnoi have remained nearly unstudied, mainly due to their reported general reluctance to release secretions as well as to the phenomenon of production of insoluble-and inaccessible-solid secretion. We here show that at least certain nemastomatid Dyspnoi, namely all three species of genus , indeed produce a volatile secretion, comprising octan-3-one, 6-methyl-5-hepten-2-one and acetophenone in species-specific combinations. In all spp., these volatiles are embedded in a semi-volatile, naphthoquinone matrix (mainly 1,4-naphthoquinone and 6-methyl-1,4-naphthoquinone). In detail, acetophenone and traces of naphthoquinones characterize the secretions of . A mixture of octan-3-one, 6-methyl-5-hepten-2-one and large amounts of naphthoquinones were found in , and 6-methyl-5-hepten-2-one together with small amounts of naphthoquinones in the secretions of . So far, exclusively naphthoquinones had been reported from a single dyspnoan hitherto studied, .
虽然关于长脚蛛亚目和微盲蛛亚目蛛形纲动物气味腺分泌物的化学知识已经有了相当多的积累，但在触肢蛛亚目（真肺蛛和歧肺蛛）中，化学数据却很匮乏。特别是歧肺蛛几乎一直未被研究，主要是因为据报道它们通常不愿分泌分泌物，以及会产生不溶性且难以获取的固体分泌物。我们在此表明，至少某些瘤足蛛科歧肺蛛，即 属的所有三个物种，确实会产生挥发性分泌物，其由辛 -3- 酮、6- 甲基 -5- 庚烯 -2- 酮和苯乙酮以物种特异性组合构成。在所有 物种中，这些挥发物都存在于一种半挥发性的萘醌基质中（主要是 1,4- 萘醌和 6- 甲基 -1,4- 萘醌）。具体而言，苯乙酮和痕量萘醌是 分泌物的特征。在 分泌物中发现了辛 -3- 酮、6- 甲基 -5- 庚烯 -2- 酮和大量萘醌的混合物，而在 分泌物中发现 6- 甲基 -5- 庚烯 -2- 酮与少量萘醌。到目前为止，在迄今研究过的单一歧肺蛛 中，仅报道过萘醌。
