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Non-destructive morphological observations of the fleshy brittle star, Asteronyx loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida)
Abstract. The first morphological observation of a euryalid brittle star, Asteronyx loveni, using non-destructive X-ray micro-computed tomography (µCT) was performed. The body of euryalids is covered by thick skin, and it is very difficult to observe the ossicles without dissolving the skin. Compute...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pensoft Publishers
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5523172/ https://www.ncbi.nlm.nih.gov/pubmed/28769615 http://dx.doi.org/10.3897/zookeys.663.11413 |
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author | Okanishi, Masanori Fujita, Toshihiko Maekawa, Yu Sasaki, Takenori |
author_facet | Okanishi, Masanori Fujita, Toshihiko Maekawa, Yu Sasaki, Takenori |
author_sort | Okanishi, Masanori |
collection | PubMed |
description | Abstract. The first morphological observation of a euryalid brittle star, Asteronyx loveni, using non-destructive X-ray micro-computed tomography (µCT) was performed. The body of euryalids is covered by thick skin, and it is very difficult to observe the ossicles without dissolving the skin. Computed tomography with micrometer resolution (approximately 4.5–15.4 µm) was used to construct 3D images of skeletal ossicles and soft tissues in the ophiuroid’s body. Shape and positional arrangement of taxonomically important ossicles were clearly observed without any damage to the body. Detailed pathways inside the vertebral ossicles, lateral arm plates, and arm spines for passage of nerves and water vascular structures were observed. Inter-vertebral muscles were also observed. Forms and 3D arrangements of many important taxonomical characters of the euryalids were scrutinized by µCT in high enough resolution for taxonomic description of ophiuroids. |
format | Online Article Text |
id | pubmed-5523172 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Pensoft Publishers |
record_format | MEDLINE/PubMed |
spelling | pubmed-55231722017-08-02 Non-destructive morphological observations of the fleshy brittle star, Asteronyx loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) Okanishi, Masanori Fujita, Toshihiko Maekawa, Yu Sasaki, Takenori Zookeys Research Article Abstract. The first morphological observation of a euryalid brittle star, Asteronyx loveni, using non-destructive X-ray micro-computed tomography (µCT) was performed. The body of euryalids is covered by thick skin, and it is very difficult to observe the ossicles without dissolving the skin. Computed tomography with micrometer resolution (approximately 4.5–15.4 µm) was used to construct 3D images of skeletal ossicles and soft tissues in the ophiuroid’s body. Shape and positional arrangement of taxonomically important ossicles were clearly observed without any damage to the body. Detailed pathways inside the vertebral ossicles, lateral arm plates, and arm spines for passage of nerves and water vascular structures were observed. Inter-vertebral muscles were also observed. Forms and 3D arrangements of many important taxonomical characters of the euryalids were scrutinized by µCT in high enough resolution for taxonomic description of ophiuroids. Pensoft Publishers 2017-03-27 /pmc/articles/PMC5523172/ /pubmed/28769615 http://dx.doi.org/10.3897/zookeys.663.11413 Text en Masanori Okanishi, Toshihiko Fujita, Yu Maekawa, Takenori Sasaki http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Okanishi, Masanori Fujita, Toshihiko Maekawa, Yu Sasaki, Takenori Non-destructive morphological observations of the fleshy brittle star, Asteronyx loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) |
title | Non-destructive morphological observations of the fleshy brittle star, Asteronyx
loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) |
title_full | Non-destructive morphological observations of the fleshy brittle star, Asteronyx
loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) |
title_fullStr | Non-destructive morphological observations of the fleshy brittle star, Asteronyx
loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) |
title_full_unstemmed | Non-destructive morphological observations of the fleshy brittle star, Asteronyx
loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) |
title_short | Non-destructive morphological observations of the fleshy brittle star, Asteronyx
loveni using micro-computed tomography (Echinodermata, Ophiuroidea, Euryalida) |
title_sort | non-destructive morphological observations of the fleshy brittle star, asteronyx
loveni using micro-computed tomography (echinodermata, ophiuroidea, euryalida) |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5523172/ https://www.ncbi.nlm.nih.gov/pubmed/28769615 http://dx.doi.org/10.3897/zookeys.663.11413 |
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