Laboratório de Sistemática de Colembolla e Conservação, Department of Biological Sciences, State University of Paraíba, João Pessoa-PB, Brazil.
Setor de Apterygota, Department of Entomology, Nacional Museum/Federal University of Rio de Janeiro, Rio de Janeiro--RJ, Brasil.
PLoS One. 2019 Feb 21;14(2):e0212451. doi: 10.1371/journal.pone.0212451. eCollection 2019.
Though Collembola is a widespread hexapod its use of chemical compounds for defense has been reported for only a few European species. Chemical composition analyses of the hemolymphatic secretion of Neotropical Collembola using Gas Chromatography with Mass Spectrometry (GC-MS) has been performed for the first time. The GC-MS analysis revealed 32 constituents, such as aliphatic and aromatic hydrocarbons, esters, alcohols, a phenol, an aldehyde and a ketone. Benzyl benzoate, the main component (at 46.98%), is a compound with known acaricide and insecticide properties. This is the first report on chemical constituents produced by Neotropical Pseudachorutinae, genus Brasilimeria, and will permit future secretion comparisons for Collembola. The taxonomic description of the species producing the secretion analyzed is provided; Brasilimeria assu sp. nov. (Collembola, Neanuridae, Pseudachorutinae) is the third known species of the genus; an updated diagnosis of the genus, an identification key, and further remarks on the species Brasilimeria Stach, 1949 are provided.
虽然弹尾目是一种广泛分布的六足动物，但据报道，只有少数几种欧洲物种使用化合物进行防御。本研究首次采用气相色谱-质谱联用仪（GC-MS）对新热带弹尾目昆虫的血淋巴分泌物进行了化学成分分析。GC-MS 分析显示了 32 种成分，如脂肪族和芳香族烃类、酯类、醇类、酚类、醛类和酮类。苯甲酸苄酯（46.98%）是一种具有已知杀螨和杀虫特性的化合物。这是首次报道新热带拟根尾虫科巴西假尾虫属（Brasilimeria）产生的化学成分，将为未来的弹尾目昆虫分泌物比较研究提供参考。本文还提供了产生所分析分泌物的物种的分类描述；巴西假尾虫属（Brasilimeria） assu sp. nov.（弹尾目，Neanuridae，拟根尾虫科）是该属的第三个已知物种；对该属进行了更新的诊断描述，提供了鉴定关键特征和对巴西假尾虫属（Brasilimeria） Stach，1949 种的进一步说明。
