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Influence of UV-B radiation on light-response curves, absorption spectra and motility of four phytoplankton species
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
1994 (English)In: Physiologia Plantarum: An International Journal for Plant Biology, ISSN 0031-9317, Vol. 91, 696-702 p.Article in journal (Refereed) Published
Abstract [en]

Several unicellular algae were exposed to artificial UV-B (280-320 nm) radiation after adaptation to high (43 W m-2) and low (19 W m-2) visible light. UV-B radiation had different effects on rates of photosynthesis. motility and absorption spectra for these species. Photosynthesis of Euglena gracilis and the diatom Phaeodactylum tricornum was more sensitive to UV-B inhibition than that of the dinoflagellates Heterocapsa triquetra and Prorocentrum minimum. Not only UV-B radiation but light had a photoinhibitory effect on photosynthesis in all four organisms. The effect on photosynthesis was observed both on the quantum yield and on the light saturation rate of photosynthesis

Place, publisher, year, edition, pages
1994. Vol. 91, 696-702 p.
Keyword [en]
Adaptation ; Gas exchange ; Ecophysiology ; Inhibition ; Photosynthesis ; Light ; Phytoplankton ; Oxygen ; Ozone ; Laboratory study ; UVB radiation ; Phaeodactylum tricornutum ; Euglena gracilis ; Photoinhibition ; Quantum yield ; Absorption spectrum ; Motility ; Depletion ; Environmental factor ; Aquatic environment ; Freshwater environment ; Marine environment ; Chrysophycophyta ; Algae ; Thallophyta ; Pyrrophycophyta ;
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:miun:diva-7539OAI: oai:DiVA.org:miun-7539DiVA: diva2:127687
Available from: 2008-12-10 Created: 2008-12-09 Last updated: 2009-03-19Bibliographically approved

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