number of downloads : ?
Title Transcription
タンスイサン コウコツギョ ドンコ ノ ヒョウヒセイ コクショク ソホウ ウンドウセイ ト ビサイ コウゾウ
Title Alternative (English)
Epidermal Melanophores of a Freshwater Goby, Odontobutis obscura : Regulation of Movements and Ultrastructure
File
language
eng
Author
Iga, Tetsuro
Matsuno, Akira
Description
In the integument of a freshwater goby. Odontobutis obscura, there exist two kinds of melanophores : epidermal and dermal melanophores. The epidermal melanophores are located in the intermediate layer of the epidermis and possess thin perikarya containing round nuclei. and slender. ramified processes that frequently connect with adjacent Processes to form a network. The epidermal melanophores are innervated by the adrenergic nerves. The nervous stimulation induced aggregation of melanosomes in the melanophores through alpha adrenoceptors on their cell membranes. The mechanisms were the same as those of the dermal melanophores. The fine structural features of these cells were very similar to those of the dermal melanopores described previously in various fish species. The epidermal cells loaded with melanin granules were not observed ; the integument of this species could not function as an epidermal melanin unit. Macrophages may be responsible for the catabolism of the pigment since phagocytized melanosomes and melanosome-containing lysosomes were found frequently in neighborhood of the epidermal melanophores.
Journal Title
Memoirs of the Faculty of Science, Shimane University
Volume
28
Start Page
59
End Page
70
ISSN
03879925
Published Date
1994-12-26
NCID
AN00108106
Publisher
島根大学理学部
Publisher Aalternative
The Faculty of Science, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Science and Engineering
他の一覧