| Photosynthetic oscillation in individual cells of the marine diatom Coscinodiscus wailesii (Bacillariophyceae) revealed by microsensor measurements. | |
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MedLine Citation:
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PMID: 17717725 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Oscillations with a period of 1-2 min in the rate of photosynthesis have been found in leaves of C(3 )and C(4 )land plants under invariant, saturating, light and carbon dioxide. This article reports the occurrence of similar oscillations with a period of 2-2.5 min in individual cells of the marine diatom Coscinodiscus wailesii. These oscillations were determined by measurements of both oxygen (oxygen microelectrode) and carbon dioxide (pH microelectrode) just outside the plasmalemma. These oscillations were found in less than 1% of the cells examined. The occurrence of oscillations in unicelluar diatoms rules out for these organisms hypotheses as to the origin of oscillations in land plant leaves that are based on cell-cell interactions. |
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Authors:
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Stefanie F Kühn; John A Raven |
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Publication Detail:
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Type: Journal Article Date: 2007-08-24 |
Journal Detail:
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Title: Photosynthesis research Volume: 95 ISSN: 0166-8595 ISO Abbreviation: Photosyn. Res. Publication Date: 2008 Jan |
Date Detail:
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Created Date: 2007-12-06 Completed Date: 2009-05-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100954728 Medline TA: Photosynth Res Country: Netherlands |
Other Details:
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Languages: eng Pagination: 37-44 Citation Subset: IM |
Affiliation:
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Marine Botany (FB2), University of Bremen, PO Box 330 440, 28334, Bremen, Germany. skuehn@uni-bremen.de |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Carbon Dioxide
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analysis* Diatoms / cytology*, metabolism*, radiation effects Hydrogen-Ion Concentration Oxygen / analysis*, metabolism Photosynthesis* / radiation effects |
| Chemical | |
Reg. No./Substance:
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124-38-9/Carbon Dioxide; 7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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