Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii
The physiological response and ultrastructure of the pigment cells of Trematomus bernacchii , an Antarctic teleost that lives under the sea ice north of the Ross Ice Shelf, were studied. In the integument, two types of epidermal chromatophores, melanophores and xanthophores, were found; in the dermi...
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crwiley:10.1111/j.1600-0749.1990.tb00259.x 2024-06-23T07:47:06+00:00 Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii OBIKA, MASATAKA MEYER‐ROCHOW, VICTOR B. 1990 http://dx.doi.org/10.1111/j.1600-0749.1990.tb00259.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0749.1990.tb00259.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0749.1990.tb00259.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Pigment Cell Research volume 3, issue 1, page 33-37 ISSN 0893-5785 1600-0749 journal-article 1990 crwiley https://doi.org/10.1111/j.1600-0749.1990.tb00259.x 2024-06-06T04:20:36Z The physiological response and ultrastructure of the pigment cells of Trematomus bernacchii , an Antarctic teleost that lives under the sea ice north of the Ross Ice Shelf, were studied. In the integument, two types of epidermal chromatophores, melanophores and xanthophores, were found; in the dermis, typically three types of chromatophores—melanophores, xanthophores, and iridophores—were observed. The occurrence of epidermal xanthophore is reported for the first time in fish. Dermal melanophores and xanthophores have well‐developed arrays of cytoplasmic microtubules. They responded rapidly to epinephrine and teleost melanin‐concentrating hormone (MCH) with pigment aggregation and to theophylline with pigment dispersion. Total darkness elicited pigment aggregation in the majority of dermal xanthophores of isolated scales, whereas melanophores remained dispersed under both light and dark conditions. Pigment organelles of epidermal and dermal xanthophores that translocate during the pigmentary responses are carotenoid droplets of relatively large size. Dermal iridophores containing large reflecting platelets appeared to be immobile. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Ross Ice Shelf Sea ice Wiley Online Library Antarctic Ross Ice Shelf The Antarctic Pigment Cell Research 3 1 33 37 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The physiological response and ultrastructure of the pigment cells of Trematomus bernacchii , an Antarctic teleost that lives under the sea ice north of the Ross Ice Shelf, were studied. In the integument, two types of epidermal chromatophores, melanophores and xanthophores, were found; in the dermis, typically three types of chromatophores—melanophores, xanthophores, and iridophores—were observed. The occurrence of epidermal xanthophore is reported for the first time in fish. Dermal melanophores and xanthophores have well‐developed arrays of cytoplasmic microtubules. They responded rapidly to epinephrine and teleost melanin‐concentrating hormone (MCH) with pigment aggregation and to theophylline with pigment dispersion. Total darkness elicited pigment aggregation in the majority of dermal xanthophores of isolated scales, whereas melanophores remained dispersed under both light and dark conditions. Pigment organelles of epidermal and dermal xanthophores that translocate during the pigmentary responses are carotenoid droplets of relatively large size. Dermal iridophores containing large reflecting platelets appeared to be immobile. |
format |
Article in Journal/Newspaper |
author |
OBIKA, MASATAKA MEYER‐ROCHOW, VICTOR B. |
spellingShingle |
OBIKA, MASATAKA MEYER‐ROCHOW, VICTOR B. Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii |
author_facet |
OBIKA, MASATAKA MEYER‐ROCHOW, VICTOR B. |
author_sort |
OBIKA, MASATAKA |
title |
Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii |
title_short |
Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii |
title_full |
Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii |
title_fullStr |
Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii |
title_full_unstemmed |
Dermal and Epidermal Chromatophores of the Antarctic Teleost Trematomus bernacchii |
title_sort |
dermal and epidermal chromatophores of the antarctic teleost trematomus bernacchii |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1111/j.1600-0749.1990.tb00259.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0749.1990.tb00259.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0749.1990.tb00259.x |
geographic |
Antarctic Ross Ice Shelf The Antarctic |
geographic_facet |
Antarctic Ross Ice Shelf The Antarctic |
genre |
Antarc* Antarctic Ice Shelf Ross Ice Shelf Sea ice |
genre_facet |
Antarc* Antarctic Ice Shelf Ross Ice Shelf Sea ice |
op_source |
Pigment Cell Research volume 3, issue 1, page 33-37 ISSN 0893-5785 1600-0749 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0749.1990.tb00259.x |
container_title |
Pigment Cell Research |
container_volume |
3 |
container_issue |
1 |
container_start_page |
33 |
op_container_end_page |
37 |
_version_ |
1802650915537158144 |