Abstract
The UV survival characteristics of a wildtype and a UV resistant strain of Gloeocapsa alpicola were compared. Except for a higher carotenoid content the resistant strain was similar to the wild-type.
However, on exposure to UV radiation the level of carotenoids in the wild-type fell sharply whereas no such decrease occurred in the resistant strain.
Growth of cells in diphenylamine and under red and blue light reduced the survival rate. This phenomenon is linked with a reduced carotenoid level in the cell, indicating that they perform an important protective function.
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References
Allen, M. M.: Simple conditions for growth of unicellular bluegreen algae on plates. J. Phycol. 4, 1–4 (1968)
Asato, Y.: Isolation and characterization of ultra-violet light sensitive mutants of the blue-green alga Anacystis nidulans. J. Bact. 110, 1058–1064 (1972)
Van Baalen, C.: The effects of ultra-violet irradiation on a coccoid blue-green alga: Survival, photosynthesis and photoreactivation. Plant Physiol. 43, 1689–1695 (1968)
Buckley, C. E., Houghton, J. A.: Some effects of UV irradiation on the blue-green alga Gloeocapsa alpicola. Proc. Soc. gen. Microbiol. II (i) (1974)
Cohen-Bazire, G., Stanier, Y.: Inhibition of carotencid synthesis in photosynthetic bacteria. Nature (Lond.) 181, 250–252 (1958)
Griffiths, M., Sistrom, W. R., Cohen-Bazire, G., Stanier, Y.: Function of carotenoids in photosynthesis. Nature (Lond.) 176, 1211–1215 (1955)
Halldal, P.: Ultra-violet action spectra in algology A review. Photochem. Photobiol. 6, 445–460 (1967)
Hughes, E. D., Gorham, P. R., Zehnder, A.: Toxicity of a unialgal culture of Microcystis aeruginosa. Canad. J. Microbiol. 4, 224–236 (1958)
Kirk, J. T. O., Tilney-Basset, R. A. E.: The plastids, their chemistry, structure, growth and inheritance, pp. 319–320. London-San Franscisco: Freeman 1967
McLeod, G. C., McLachlan, J.: The sensitivity of several algae to UV irradiation of 2537 Å. Physiol. Plantarum 12, 306–309 (1959)
Redford, E. C., Myers, J.: Some effects of UV radiation on the metabolism of Chlorella. J. cell. comp. Physiol. 38, 217–243 (1951)
Shibata, K., Benson, A. A., Calvin, M.: The absorption spectra of suspensions of living microorganisms. Biochim. biophys. Acta (Amst.) 15, 461–470 (1954)
Zill, L. P., Tolbert, N. E.: The effects of ionizing and ultra-violet radiations on photosynthesis. Arch. Biochem. Biophys. 76, 196–203 (1958)
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Buckley, C.E., Houghton, J.A. A study of the effects of near UV radiation on the pigmentation of the blue-green alga Gloeocapsa alpicola . Arch. Microbiol. 107, 93–97 (1976). https://doi.org/10.1007/BF00427873
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DOI: https://doi.org/10.1007/BF00427873