The ontogeny of oil gland chemistry in the oribatid mite Archegozetes longisetosus Aoki (Oribatida, Trhypochthoniidae)
The ontogeny of oil gland chemistry in the oribatid mite Archegozetes longisetosus Aoki (Oribatida, Trhypochthoniidae)
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DOI：
10.1080/01647954.2017.1321042
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发表时间：
2017-01-01
影响因子：
1.1
通讯作者：
Heethoff, Michael
中科院分区：
文献类型：
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作者：
Brueckner, Adrian;Heethoff, Michael
所谓的腺甲螨目（包括无气门目）具有大的opisthonotal油腺，产生化学信息素作为有效的化学防御剂对捕食者（异源激素）以及种内通信（信息素）。油腺的储存器和它们的内容物与脱落的分泌物一起保留，所以分泌物需要在每次换羽后重新合成。化学剖面的定性组成可能会发生显着变化之间的最后一个少年龄（tritonymph）和成人（如Hermannia convexa Koch，Scheloribates azumaensis Enami，中村& Katsumata，Oribotritia berlesei Michael），但报告的定量个体发育的转变是模糊的。在这里，我们分析了完整的个体发育序列（幼虫，protonymph，deutonymph，tritonymph，和成人）的油腺分泌物中的孤雌生殖oribatid模式种Archegozetes longisetosus青木使用气相色谱-质谱。我们发现，绝对和身体质量校正量的油腺分泌物在个体发育过程中增加，分泌量与体重（即个体发育龄期）异速生长。此外，我们发现非常显着的个体发育变化的相对数量的化学成分之间的年龄，但质量组成（= 2，6-HMBD，橙花醛，橙花醇甲酸酯，-螨，十三烷，7-十五烯，十五烷，6，9-十七碳二烯，8-十七碳烯，十七烷）保持稳定。
The so-called glandulate Oribatida (including Astigmata) possess large opisthonotal oil glands, which produce semiochemicals as potent agents for chemical defence against predators (allomones) as well as for intraspecific communication (pheromones). The oil gland reservoirs and their contents remain with shed exuviae, so secretions need to be synthesized de novo after each moult. The qualitative composition of chemical profiles may change dramatically between the last juvenile instar (tritonymph) and adult (e.g. Hermannia convexa Koch, Scheloribates azumaensis Enami, Nakamura & Katsumata, Oribotritia berlesei Michael), but reports about quantitative ontogenetic shifts are ambiguous. Here, we analysed the complete ontogenetic sequence (larva, protonymph, deutonymph, tritonymph, and adult) of oil gland secretions in the parthenogenetic oribatid model species Archegozetes longisetosus Aoki using gas chromatography-mass spectrometry. We show that absolute and body mass-corrected amounts of oil gland secretions increase during ontogeny and that secretion quantity scales allometrically with body mass (i.e. ontogenetic instar). Furthermore, we found highly significant ontogenetic shifts in the relative quantity of chemical components among instars, but the qualitative composition (=2,6-HMBD, neral, neryl formate, -acaridial, tridecane, 7-pentadecene, pentadecane, 6,9-heptadecadiene, 8-heptadecene, and heptadecane) remained stable.