Document Detail

Reversible, light-screening pigment of elasmobranch eyes: chemical identity with melanin.
MedLine Citation:
PMID:  5837098     Owner:  NLM     Status:  MEDLINE    
There lies directly beneath the tapetum lucidum, in the eyes of many elasmobranch fishes, a layer of darkly pigmented choroid cells which, in bright light, extend individual strands that aggregate to form a dark, compound curtain which shields the reflecting tapetal cells. This process is reversed in dim light or in darkness; the tapetum is exposed and visual sensitivity presumably Increased. The black choroid pigment has been isolated, analyzed, and shown to possess the properties of melanin.
D L Fox; K P Kuchnow
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Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  150     ISSN:  0036-8075     ISO Abbreviation:  Science     Publication Date:  1965 Oct 
Date Detail:
Created Date:  1966-01-07     Completed Date:  1966-01-07     Revised Date:  2010-10-22    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  612-4     Citation Subset:  IM    
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MeSH Terms
Chemical Precipitation
Chemistry Techniques, Analytical
Choroid / metabolism*
Eye / metabolism*
Fishes / metabolism*
Melanins / metabolism*
Reg. No./Substance:

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