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Chemical analysis of Brasilimeria Stach, 1949 (Hexapoda, Collembola, Neanuridae) hemolymphatic secretion, and description of a new species.

ABSTRACT: 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.

SUBMITTER: Zeppelini D

PROVIDER: S-EPMC6383892 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Chemical analysis of Brasilimeria Stach, 1949 (Hexapoda, Collembola, Neanuridae) hemolymphatic secretion, and description of a new species.

Zeppelini Douglas D Queiroz Gabriel C GC Lopes Norberto P NP Mendonça-Junior Francisco J B FJB

PloS one 20190221 2

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 ...[more]

PMID: 30789930

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Project description:Seven new species of the subfamily Neanurinae from north-western Iran are described and illustrated in detail. Endonura agnieskae sp. nov. differs from the most similar congener, E. reticulata (Axelson, 1905), in chaetotaxic details and the arrangement of tubercles on the dorsal side of the body. Endonura annae sp. nov. can be easily recognised by its wide labrum, the absence of chaetae C on the head and the presence of a toothed claw. Endonura schwendingeri sp. nov. is especially distinctive due to the absence of chaetae A and Ocp on the head and the presence of the male ventral organ. Deutonura breviseta sp. nov. is related and most similar to D. persica Smolis, Shayanmehr & Yoosefi-Lafooraki, 2018, described recently and known from Mazandran Province in Iran. The new species can be easily distinguished by the following set of features: dark pigmented body, presence of chaetae C and Dl3 on the head, absence of microchaetae on the furca rudimentary, presence of thickened macrochaetae on dorsal side of body and absence of cryptopygy. The main characteristics of Deutonura sengleti sp. nov. include a white body with dark pigmented eyes, the fusion of tubercles Di and De on the first thoracic segment and the presence of the male ventral organ. Deutonura iranica sp. nov. is superficially similar to D. gibbosa Porco, Bedos & Deharveng, 2010, a species known from the Alps and Jura in Europe, but it differs in the body colour and the number of labial chaetae and chaetae (L+So) on the head. Paravietnura rostrata sp. nov., the first member of this enigmatic and intriguing genus known from Iran, is characterised by an unusually elongate ogival labrum and extreme reduction of dorsal chaetotaxy. Furthermore, new records of several other species of the subfamily: Cryptonura maxima Smolis, Falahati & Skarżyński, 2012; C. persica Smolis, Falahati & Skarżyński, 2012; Deutonura persica; Endonura longirostris Smolis, Shayanmehr, Kuznetsova & Yoosefi-Lafooraki, 2017; E. paracentaurea Smolis, Shayanmehr, Kuznetsova & Yoosefi-Lafooraki, 2017; Neanura deharvengi Smolis, Shayanmehr & Yoosefi-Lafooraki, 2018; N. muscorum (Templeton, 1835) and Protanura papillata Cassagnau & Delamare Deboutteville, 1955 are given. The present study is based on the rich material collected by Antoine Senglet and loaned by Peter J. Schwendinger.

Dataset Information

Chemical analysis of Brasilimeria Stach, 1949 (Hexapoda, Collembola, Neanuridae) hemolymphatic secretion, and description of a new species.

Publications

Chemical analysis of Brasilimeria Stach, 1949 (Hexapoda, Collembola, Neanuridae) hemolymphatic secretion, and description of a new species.

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