Characterization of tongue worm (Pentastomida) chitin supports ?- rather than ?-chitin

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dc.authorid0000-0001-6954-2703
dc.authorid0000-0001-6650-1201
dc.authorid0000-0001-8548-3037
dc.contributor.authorGreven, Hartmut
dc.contributor.authorKaya, Murat
dc.contributor.authorJunker, Kerstin
dc.contributor.authorAkyüz, Lalehan
dc.contributor.authorAmemiya, Chris T.
dc.date.accessioned2020-02-13T13:16:41Z
dc.date.available2020-02-13T13:16:41Z
dc.date.issued2019
dc.departmentSabire Yazıcı Fen Edebiyat Fakültesi
dc.descriptionKaya, Murat ( Aksaray, Yazar ) Akyüz, Lalehan ( Aksaray, Yazar )
dc.description.abstractThe higher order relationships of the Pentastomida have historically been tenuous. In one early and influential study, analysis of extracted chitin implicated that pentastomids possess ?-chitin, a paradoxical finding given that the ? allomorph is found uniformly in the cuticles of all arthropods and is considered as an apomorphic character of the Ecdysozoa. This result was further used to support the idea that the enigmatic pentastomids might be a wholly independent clade. More recent studies, however, firmly place the pentastomids within the Ecdysozoa, suggesting that the state of its chitin should be re-examined. In this study, we extracted high-quality chitin from the pentastomid, Leiperia cincinnalis, and carried out diagnostic analyses. Fourier Transform Infrared Spectroscopy (FT-IR) and ThermoGravimetric Analysis (TGA) demonstrated the conspicuous features of ?-chitin but not ?-chitin. Furthermore, transmission electron microscopy (TEM) of the cuticle of the anterior part of a specimen revealed nanofibres organized largely in a parallel configuration and scanning electron microscopy (SEM) of isolated cuticular chitin exhibited well-defined chitin bundles, these observations being more consistent with the known characteristics of ?-chitin. Collectively, our analyses demonstrate the clear existence of ?-chitin in a pentastomid and clarify a contentious issue using modern methods of analysis.
dc.identifier.doi10.1016/j.jcz.2019.01.009
dc.identifier.endpage115en_US
dc.identifier.issn0044-5231
dc.identifier.issue-en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage111en_US
dc.identifier.urihttps:/dx.doi.org/10.1016/j.jcz.2019.01.009
dc.identifier.urihttps://hdl.handle.net/20.500.12451/7192
dc.identifier.volume279en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier GmbH
dc.relation.ispartofZoologischer Anzeiger
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCuticle
dc.subjectEcdysozoa
dc.subjectFT-IR
dc.subjectTGA
dc.subject?-chitin
dc.titleCharacterization of tongue worm (Pentastomida) chitin supports ?- rather than ?-chitin
dc.typeArticle

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