Abstract
Abstract The relative UV sensitivities of alfalfa seedlings grown outdoors versus plants grown in a growth chamber under UV‐filtered cool white fluorescent bulbs have been determined using three criteria: (1) level of endogenous DNA damage as sites for the UV endonuclease from Micrococcus luteus. (2) susceptibility to pyrimidine dimer induction by a UV challenge exposure and (3) ability to repair UV‐induced damage. We find that outdoor‐grown plants contain approximately equal frequencies of endogenous DNA damages, are less susceptible to dimer induction by a challenge exposure of broad‐spectrum UV and photorepair dimers more rapidly than plants grown in an environmental chamber under cool white fluorescent lamps plus a filter that removes most UV radiation. These data suggest that plants grown in a natural environment would be less sensitive to UVB‐induced damage than would be predicted on the basis of studies on plants grown under minimum UV.
References
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Dates
Type | When |
---|---|
Created | 17 years, 8 months ago (Jan. 2, 2008, 2:47 p.m.) |
Deposited | 1 year, 10 months ago (Oct. 24, 2023, 8:14 a.m.) |
Indexed | 1 year, 10 months ago (Oct. 31, 2023, 6:50 a.m.) |
Issued | 30 years, 11 months ago (Oct. 1, 1994) |
Published | 30 years, 11 months ago (Oct. 1, 1994) |
Published Online | 17 years, 8 months ago (Jan. 2, 2008) |
Published Print | 30 years, 11 months ago (Oct. 1, 1994) |
@article{Takayanagi_1994, title={ALFALFA SEEDLINGS GROWN OUTDOORS ARE MORE RESISTANT TO UV‐INDUCED DNA DAMAGE THAN PLANTS GROWN IN A UV‐FREE ENVIRONMENTAL CHAMBER}, volume={60}, ISSN={1751-1097}, url={http://dx.doi.org/10.1111/j.1751-1097.1994.tb05116.x}, DOI={10.1111/j.1751-1097.1994.tb05116.x}, number={4}, journal={Photochemistry and Photobiology}, publisher={Wiley}, author={Takayanagi, Shinnosuke and Trunk, John G. and Sutherland, John C. and Sutherland, Betsy M.}, year={1994}, month=oct, pages={363–367} }