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Effects of protein synthesis inhibitors on photoinhibition by UV–B (280-320 nm) radiation in the flagellate Euglena gracilis
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
1996 (English)In: Scienta Marina, Vol. 60, no 1, 95-100 p.Article in journal (Refereed) Published
Abstract [en]

Irradiation of the flagellate Euglena gracilis by UV-B radiation resulted in inhibition of photosynthesis and motility. After 2 h of UV-B radiation (1.2 W m super(-2)) the rates of photosynthesis did not completely recover until after 24 h in visible light. After 24 h in darkness the rate of photosynthesis was lower but the recovery time in darkness after UV-B radiation was about the same as in the visible light. In the presence of lincomycin, inhibitor of chloroplast protein synthesis, therecovery of photoinhibition was totally blocked for up to 16 h recovery in visible light. However, after 24 h recovery in visible light together with lincomycin, photosynthesis was partially recovered but recovery in darkness together with lincomycindid not give any reparation at all of photosynthesis. The inhibition of motility had a slower recovery phase and had not fully recovered even after 72 h in visible light.

Place, publisher, year, edition, pages
1996. Vol. 60, no 1, 95-100 p.
Keyword [en]
euglena gracilis
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:miun:diva-7534OAI: oai:DiVA.org:miun-7534DiVA: diva2:127682
Available from: 2008-12-10 Created: 2008-12-09 Last updated: 2009-03-19Bibliographically approved

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