首页 | 本学科首页   官方微博 | 高级检索  
     


Ommochrome pigments in the eyes of Euphausia superba (Crustacea,Euphausiacea)
Authors:C. J. Denys
Affiliation:(1) Department of Biological Sciences, De Paul University, 60614 Chicago, IL, USA
Abstract:Summary Ommin and a xanthommatin-like ommochrome pigment have been extracted from the eyes of Euphausia superba, and identified by their absorbance spectra and redox reactions invarious solvents. The absorbance spectrum of ommin is relatively stable, but that of the xanthommatin pigment is sensitive to light, pH, and hydroxylamine. Both pigments are readily soluble in 2% digitonin. They are therefore likely contaminants of visual pigment extracts, and may consequently introduce artifacts into visual pigment characterizations. Microspectrophotometric measurements show that both pigments are components of the distal and proximal screening pigment granules in E. superba ommatidia.This paper is dedicated to the memory of Professor Mary Alice McWhinnie, to whom I owe a great debt of gratitude for her patient tutelage and the opportunity to participate in her Antarctic research, for the encouragement to pursue my own interests, and for her generous friendship. It was a cherished association which ended sadly with her untimely death in March, 1980. She will always be fondly remembered
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号