This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Van Baalen, C. Search for Related Content PubMed PubMed Citation Articles by Van Baalen, C. Agricola Articles by Van Baalen, C.

Articles

The Effects of Ultraviolet Irradiation on a Coccoid Blue-Green Alga: Survival, Photosynthesis, and Photoreactivation ¹

University of Texas Marine Science Institute, Port Aransas, Texas 78373

The effects of UV irradiation (254 mµ) on a coccoid blue-green alga Agmenellum quadruplicatum, Strain PR-6, have been examined in terms of the survival curve and measurement of short time photosynthetic rates. From study of survival evidence has been found for a strong photoreactivation centered near 430 mµ. Measurements of photosynthetic rate suggest that there is a correlation between decay of photosynthesis and survival after UV exposure. The UV induced decay in photosynthetic activity is reversed by the identical photoreactivation conditions that increase the survival level. The photosynthetic data are interpreted as demonstrating a photoreactivation of photosynthesis in blue-green algae.

This article has been cited by other articles:

				T. Soule, V. Stout, W. D. Swingley, J. C. Meeks, and F. Garcia-Pichel Molecular Genetics and Genomic Analysis of Scytonemin Biosynthesis in Nostoc punctiforme ATCC 29133 J. Bacteriol., June 15, 2007; 189(12): 4465 - 4472. [Abstract] [Full Text] [PDF]

				H. Wu, K. Gao, V. E. Villafane, T. Watanabe, and E. W. Helbling Effects of Solar UV Radiation on Morphology and Photosynthesis of Filamentous Cyanobacterium Arthrospira platensis Appl. Envir. Microbiol., September 1, 2005; 71(9): 5004 - 5013. [Abstract] [Full Text] [PDF]