Characterisation of chitin in the cuticle of a velvet worm (Onychophora)

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Küçük Resim

Tarih

2019

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

We characterize the trunk cuticle of velvet worms of the Peripatoides novaezealandiae-group (Onychophora) using SEM, TEM, Fourier transform infrared spectroscopy (FT-IR), and thermogravimetric analysis (TGA). TEM and SEM revealed a relatively uniform organization of the delicate cuticle that is covered by numerous bristled and nonbristled papillae with ribbed scales arranged in transverse rows. The cuticle consists of a very thin multilayered epicuticle of varying appearance followed by the largely fibrous procuticle. The irregularly arranged nanofibres of isolated cuticular chitin seen by SEM are considered as bundles of chitin fibres. FT-IR and TGA showed that the chitin is of the alpha-type. This confirms and broadens the single previous study in which the presence of a-chitin in a velvet worm was demonstrated with a single analysis (X-ray diffraction).

Açıklama

Anahtar Kelimeler

Chitin, Fourier transform infrared spectroscopy, thermogravimetric analysis, Peripatoides, cuticle, Ecdysozoa

Kaynak

TURKISH JOURNAL OF ZOOLOGY

WoS Q DeÄŸeri

Q4

Scopus Q DeÄŸeri

Q3

Cilt

43

Sayı

5

Künye

Greven, H., Kaya, M., Sargin, I., Baran, T., Kristensen, R. M., Sorensen, M. V. (2019). Characterisation of Chitin in the Cuticle of a Velvet Worm (Onychophora). Turkish Journal of Zoology, 43(5), 416-424.