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Open Access Green as soon as Postprint is submitted to ZB.
Intra- and interspecific differences of 10 barley and 10 tomato cultivars in response to short-time UV-B radiation: A study analysing thermoluminescence, fluorescence, gas-exchange and biochemical parameters.
Environ. Pollut. 157, 1603-1612 (2009)
The impact of UV-B radiation on 10 genotypically different barley and tomato cultivars was tested in a predictive study to screen for potentially UV-tolerant accessions and to analyze underlying mechanisms for UV-B sensitivity. Plant response was analyzed by measuring thermoluminescence, fluorescence, gas exchange and antioxidant status. Generally, barley cultivars proved to be much more sensitive against UV-B radiation than tomato cultivars. Statistical cluster analysis could resolve two barley groups with distinct differences in reaction patterns. The UV-B sensitive group showed a stronger loss in PSII photochemistry and a lower gas-exchange performance and regulation after UV-B radiation compared to the more tolerant group. The results indicate that photosynthetic light and dark reactions have to play optimally in concert to render plants more tolerant against UV-B radiation. Hence, measuring thermoluminescence/fluorescence and gas exchange in parallel will have much higher potential in identifying tolerant cultivars and will help to understand the underlying mechanisms.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
abiotic stress; crop plants; photosynthesis; thermoluminescence; UV-B
ISSN (print) / ISBN
0269-7491
e-ISSN
1873-6424
Journal
Environmental Pollution
Quellenangaben
Volume: 157,
Issue: 5,
Pages: 1603-1612
Publisher
Elsevier
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Research Unit Environmental Simulation (EUS)