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Action spectra for enhancement of ultraweak luminescence by UV radiation (270–340 nm) in leaves of Brassica napus

Cen, Yan-Ping and Björn, Lars Olof LU (1994) In Journal of Photochemistry and Photobiology, B: Biology 22(2). p.125-129
Abstract
Fluence-response relationships for the enhancement of ultraweak luminescence by UV radiation were determined in leaves of Brassica napus L. (cv. Ceres) when either the adaxial or abaxial leaf surface was exposed to monochromatic radiation (270–340 nm). Action spectra for both leaf surfaces were constructed from the fluence-response curves at the fluence required to obtain a doubling of the ultraweak luminescence level over the unirradiated controls. The action spectrum for the abaxial leaf surface showed a steeper slope than that for the adaxial leaf surface at wavelengths below 280 nm. Both action spectra were flatter than the generalized plant action spectrum of Caldwell (M.M. Caldwell, in A.C. Giese (ed.), Photophysiology, Vol. 6,... (More)
Fluence-response relationships for the enhancement of ultraweak luminescence by UV radiation were determined in leaves of Brassica napus L. (cv. Ceres) when either the adaxial or abaxial leaf surface was exposed to monochromatic radiation (270–340 nm). Action spectra for both leaf surfaces were constructed from the fluence-response curves at the fluence required to obtain a doubling of the ultraweak luminescence level over the unirradiated controls. The action spectrum for the abaxial leaf surface showed a steeper slope than that for the adaxial leaf surface at wavelengths below 280 nm. Both action spectra were flatter than the generalized plant action spectrum of Caldwell (M.M. Caldwell, in A.C. Giese (ed.), Photophysiology, Vol. 6, Academic Press, New York, 1971, pp. 131–177) at wavelengths above 280 nm. Under a depleted ozone layer, the action spectra yielded a radiation amplification factor approximately 50% of that obtained with Caldwell's generalized plant action spectrum. The shape of the action spectrum for the induction of ultraweak luminescence was approximately the same for both surfaces above 290 nm. (Less)
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type
Contribution to journal
publication status
published
subject
in
Journal of Photochemistry and Photobiology, B: Biology
volume
22
issue
2
pages
125 - 129
publisher
Elsevier
external identifiers
  • scopus:0028267004
ISSN
1011-1344
DOI
10.1016/1011-1344(93)06957-5
language
English
LU publication?
yes
id
12eec878-ce01-45cb-8bd7-294c27496eb3 (old id 134536)
date added to LUP
2007-07-27 15:05:27
date last changed
2017-01-01 06:49:55
@article{12eec878-ce01-45cb-8bd7-294c27496eb3,
  abstract     = {Fluence-response relationships for the enhancement of ultraweak luminescence by UV radiation were determined in leaves of Brassica napus L. (cv. Ceres) when either the adaxial or abaxial leaf surface was exposed to monochromatic radiation (270–340 nm). Action spectra for both leaf surfaces were constructed from the fluence-response curves at the fluence required to obtain a doubling of the ultraweak luminescence level over the unirradiated controls. The action spectrum for the abaxial leaf surface showed a steeper slope than that for the adaxial leaf surface at wavelengths below 280 nm. Both action spectra were flatter than the generalized plant action spectrum of Caldwell (M.M. Caldwell, in A.C. Giese (ed.), Photophysiology, Vol. 6, Academic Press, New York, 1971, pp. 131–177) at wavelengths above 280 nm. Under a depleted ozone layer, the action spectra yielded a radiation amplification factor approximately 50% of that obtained with Caldwell's generalized plant action spectrum. The shape of the action spectrum for the induction of ultraweak luminescence was approximately the same for both surfaces above 290 nm.},
  author       = {Cen, Yan-Ping and Björn, Lars Olof},
  issn         = {1011-1344},
  language     = {eng},
  number       = {2},
  pages        = {125--129},
  publisher    = {Elsevier},
  series       = {Journal of Photochemistry and Photobiology, B: Biology},
  title        = {Action spectra for enhancement of ultraweak luminescence by UV radiation (270–340 nm) in leaves of Brassica napus},
  url          = {http://dx.doi.org/10.1016/1011-1344(93)06957-5},
  volume       = {22},
  year         = {1994},
}