Document Detail

Pteridines as reflecting pigments and components of reflecting organelles in vertebrates.
MedLine Citation:
PMID:  8248017     Owner:  NLM     Status:  MEDLINE    
This paper reviews evidence for the presence of pteridines in iridophores, leucophores, and xanthophores in a wide variety of vertebrate chromatophores, and argues that the chemical and functional distinction between pterinosomes and reflecting platelets is not as clear-cut as previously believed. Observations indicate that: (1) Pteridines may, either alone or in conjunction with purines, form pigment granules that reflect light, (2) these pigment granules are highly variable ranging from fibrous pterinosomes to typical reflecting platelets and may be colored, reflect white light, or be iridescent, and (3) many "leucophores" probably contain typical pterinosomes and presumed associated colorless pteridines and are therefore more closely related to erythrophores and xanthophores than to iridophores with which they are usually classified. We propose that the classification of pigment cells should be modified to reflect these facts.
L W Oliphant; J Hudon
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Pigment cell research / sponsored by the European Society for Pigment Cell Research and the International Pigment Cell Society     Volume:  6     ISSN:  0893-5785     ISO Abbreviation:  Pigment Cell Res.     Publication Date:  1993 Aug 
Date Detail:
Created Date:  1994-01-06     Completed Date:  1994-01-06     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  8800247     Medline TA:  Pigment Cell Res     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  205-8     Citation Subset:  IM    
Department of Veterinary Anatomy, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.
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MeSH Terms
Organelles / chemistry*,  physiology
Pigments, Biological / analysis*,  physiology*
Pteridines / analysis*
Vertebrates / physiology*
Reg. No./Substance:
0/Pigments, Biological; 0/Pteridines

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