| Photooxidations in pigmented Blepharisma. | |
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MedLine Citation:
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PMID: 18114564 Owner: NLM Status: OLDMEDLINE |
Abstract/OtherAbstract:
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1. Blepharisma undulans, a protozoan with a reddish pigment, shows increased oxygen consumption under the influence of light. 2. If the light intensity is high, the animals are killed during a burst of oxygen consumption. 3. If the blepharismas are first bleached by exposure to light of low intensity they show only slightly increased oxygen consumption under the influence of light and they are not killed. 4. A preparation in which the animals are killed by heat still shows the increase in oxygen consumption on illumination with brilliant light. The supernatant solution does so as well, as does an alcohol extract of the dye. 5. The conclusion is drawn that the blepharismas are killed during photooxidation of the pigment, but the mechanism of action is not clear. Several possibilities are considered in the discussion. |
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Authors:
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A C GIESE; E ZEUTHEN |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of general physiology Volume: 32 ISSN: 0022-1295 ISO Abbreviation: J. Gen. Physiol. Publication Date: 1949 Mar |
Date Detail:
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Created Date: 1949-12-01 Completed Date: 2007-12-27 Revised Date: 2010-06-22 |
Medline Journal Info:
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Nlm Unique ID: 2985110R Medline TA: J Gen Physiol Country: Not Available |
Other Details:
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Languages: eng Pagination: 525-35 Citation Subset: OM |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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Journal Information Journal ID (nlm-ta): J Gen Physiol ISSN: 0022-1295 ISSN: 1540-7748 Publisher: The Rockefeller University Press |
Article Information Download PDF  Copyright © Copyright, 1949, by The Rockefeller Institute for Medical Research Received Day: 17 Month: 11 Year: 1948 Print publication date: Day: 20 Month: 3 Year: 1949 Volume: 32 Issue: 4 First Page: 525 Last Page: 535 ID: 2147171 PubMed Id: 18114564 |
| PHOTOOXIDATIONS IN PIGMENTED BLEPHARISMA | |
| Arthur C. Giese | |
| Erik Zeuthen | |
| From the Hopkins Marine Station, Pacific Grove |
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