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Title: | Effects of UV-B radiation on the patagonian Jaborosa magellanica Brisben |
Authors: | Cuadra, P. Herrera, R. Fajardo, V. |
Keywords: | chlorophyll alpha plant response solanaccae DNA damage |
Issue Date: | 25-Oct-2004 |
Publisher: | Elsevier Science S.A. |
Citation: | Journal of Photochemistry and Photobiology B-Biology 76 (1-3): 61-68 |
Abstract: | Treatment of Jaborosa magellanica with artificial UV-B radiation caused changes in plant growth, plant chemistry and increase DNA polymorphisms. Spectrophotometric analysis showed that UV-B radiation decreases the chlorophylls content, and increases the amount of UV-B absorbing compounds (e.g., phenylpropanoids). Other UV-induced alterations include reduction in leaf area, alterations in plant architecture, and DNA damage. Using random primers and PCR amplification procedure, a high degree of polymorphism was detected when treated plants were compared to non-irradiated plants. These biochemical changes may be interpreted as plant response to UV-B radiation stress and as an indicator of DNA damage. |
Description: | Herrera, R. Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, 2 Norte 685, P.O. Box 747, Talca, Chile. |
URI: | http://dspace.utalca.cl/handle/1950/1671 |
ISSN: | 1011-1344 |
Appears in Collections: | Artículos en publicaciones ISI - Universidad de Talca
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