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Histological study of white rhinoceros integument

In this study, we report findings from a microscopic analysis of the white rhinoceros (Ceratotherium simum) integumentary ultrastructure. Skin samples from the cheek, shoulder, flank and rump were taken from a 46-year-old female southern white rhinoceros and examined using H&E and elastic histol...

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Autores principales: Plochocki, Jeffrey H., Ruiz, Saul, Rodriguez-Sosa, José R., Hall, Margaret I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5404766/
https://www.ncbi.nlm.nih.gov/pubmed/28441468
http://dx.doi.org/10.1371/journal.pone.0176327
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author Plochocki, Jeffrey H.
Ruiz, Saul
Rodriguez-Sosa, José R.
Hall, Margaret I.
author_facet Plochocki, Jeffrey H.
Ruiz, Saul
Rodriguez-Sosa, José R.
Hall, Margaret I.
author_sort Plochocki, Jeffrey H.
collection PubMed
description In this study, we report findings from a microscopic analysis of the white rhinoceros (Ceratotherium simum) integumentary ultrastructure. Skin samples from the cheek, shoulder, flank and rump were taken from a 46-year-old female southern white rhinoceros and examined using H&E and elastic histological stains. The epidermis was thickest in the flank (1.003 mm) followed by the rump, cheek and shoulder. The stratum corneum comprised more than half the epidermal thickness. Numerous melanin granules were found in the basal and spinosum layers. The epidermal-dermal junction was characterized by abundant papillary folds increasing surface contact between integument layers. Most of the dermal thickness consisted of organized collagen bundles with scattered elastic fibers. Collagen fiber bundles were thickest in the flank (210.9 μm) followed by shoulder, rump and cheek. Simple coiled sweat glands were present in the dermis, but hair and sebaceous glands were absent. Together, these data suggest the white rhinoceros has a unique integumentary system among large terrestrial herbivores.
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spelling pubmed-54047662017-05-12 Histological study of white rhinoceros integument Plochocki, Jeffrey H. Ruiz, Saul Rodriguez-Sosa, José R. Hall, Margaret I. PLoS One Research Article In this study, we report findings from a microscopic analysis of the white rhinoceros (Ceratotherium simum) integumentary ultrastructure. Skin samples from the cheek, shoulder, flank and rump were taken from a 46-year-old female southern white rhinoceros and examined using H&E and elastic histological stains. The epidermis was thickest in the flank (1.003 mm) followed by the rump, cheek and shoulder. The stratum corneum comprised more than half the epidermal thickness. Numerous melanin granules were found in the basal and spinosum layers. The epidermal-dermal junction was characterized by abundant papillary folds increasing surface contact between integument layers. Most of the dermal thickness consisted of organized collagen bundles with scattered elastic fibers. Collagen fiber bundles were thickest in the flank (210.9 μm) followed by shoulder, rump and cheek. Simple coiled sweat glands were present in the dermis, but hair and sebaceous glands were absent. Together, these data suggest the white rhinoceros has a unique integumentary system among large terrestrial herbivores. Public Library of Science 2017-04-25 /pmc/articles/PMC5404766/ /pubmed/28441468 http://dx.doi.org/10.1371/journal.pone.0176327 Text en © 2017 Plochocki et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Plochocki, Jeffrey H.
Ruiz, Saul
Rodriguez-Sosa, José R.
Hall, Margaret I.
Histological study of white rhinoceros integument
title Histological study of white rhinoceros integument
title_full Histological study of white rhinoceros integument
title_fullStr Histological study of white rhinoceros integument
title_full_unstemmed Histological study of white rhinoceros integument
title_short Histological study of white rhinoceros integument
title_sort histological study of white rhinoceros integument
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5404766/
https://www.ncbi.nlm.nih.gov/pubmed/28441468
http://dx.doi.org/10.1371/journal.pone.0176327
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