THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN
The vitamin A of the euphausiid crustacean, Meganyctiphanes norvegica, consists almost wholly of the hindered cis isomer, neo-b (11-cis). In this animal vitamin A is concentrated almost entirely in the eyes; and its properties so closely resemble those of pure neo-b vitamin A as not in themselves to...
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Rockefeller University Press
1957
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crrockefelleruni:10.1085/jgp.40.4.627 2024-06-02T08:10:18+00:00 THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN Wald, George Brown, Paul K. 1957 http://dx.doi.org/10.1085/jgp.40.4.627 https://rupress.org/jgp/article-pdf/40/4/627/1803135/627.pdf en eng Rockefeller University Press The Journal of General Physiology volume 40, issue 4, page 627-634 ISSN 1540-7748 0022-1295 journal-article 1957 crrockefelleruni https://doi.org/10.1085/jgp.40.4.627 2024-05-07T14:15:22Z The vitamin A of the euphausiid crustacean, Meganyctiphanes norvegica, consists almost wholly of the hindered cis isomer, neo-b (11-cis). In this animal vitamin A is concentrated almost entirely in the eyes; and its properties so closely resemble those of pure neo-b vitamin A as not in themselves to indicate that any other isomer is present. However, Fisher et al. (1955 b) have isolated a small fraction from this material which may be neo-c vitamin A (11, 13-dicis). The neo-b isomer was identified by its absolute absorption spectrum, the changes of absorption spectrum on isomerization, oxidation to neo-b retinene, and synthesis from the latter of rhodopsin. This identification is also in good accord with new, revised bioassays of Meganyctiphanes vitamin A by Plack et al. (1956). Article in Journal/Newspaper Meganyctiphanes norvegica Rockefeller University Press Journal of General Physiology 40 4 627 634 |
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Rockefeller University Press |
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crrockefelleruni |
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English |
description |
The vitamin A of the euphausiid crustacean, Meganyctiphanes norvegica, consists almost wholly of the hindered cis isomer, neo-b (11-cis). In this animal vitamin A is concentrated almost entirely in the eyes; and its properties so closely resemble those of pure neo-b vitamin A as not in themselves to indicate that any other isomer is present. However, Fisher et al. (1955 b) have isolated a small fraction from this material which may be neo-c vitamin A (11, 13-dicis). The neo-b isomer was identified by its absolute absorption spectrum, the changes of absorption spectrum on isomerization, oxidation to neo-b retinene, and synthesis from the latter of rhodopsin. This identification is also in good accord with new, revised bioassays of Meganyctiphanes vitamin A by Plack et al. (1956). |
format |
Article in Journal/Newspaper |
author |
Wald, George Brown, Paul K. |
spellingShingle |
Wald, George Brown, Paul K. THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN |
author_facet |
Wald, George Brown, Paul K. |
author_sort |
Wald, George |
title |
THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN |
title_short |
THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN |
title_full |
THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN |
title_fullStr |
THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN |
title_full_unstemmed |
THE VITAMIN A OF A EUPHAUSIID CRUSTACEAN |
title_sort |
vitamin a of a euphausiid crustacean |
publisher |
Rockefeller University Press |
publishDate |
1957 |
url |
http://dx.doi.org/10.1085/jgp.40.4.627 https://rupress.org/jgp/article-pdf/40/4/627/1803135/627.pdf |
genre |
Meganyctiphanes norvegica |
genre_facet |
Meganyctiphanes norvegica |
op_source |
The Journal of General Physiology volume 40, issue 4, page 627-634 ISSN 1540-7748 0022-1295 |
op_doi |
https://doi.org/10.1085/jgp.40.4.627 |
container_title |
Journal of General Physiology |
container_volume |
40 |
container_issue |
4 |
container_start_page |
627 |
op_container_end_page |
634 |
_version_ |
1800756141359104000 |