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2011 | 53 | 1 |
Tytuł artykułu

Comparison of chlorophyll fluorescence parameters of Cucumis sativus and Mentha piperita leaves exposed to short-term UV-B irradiation

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Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Cucumber (Cucumis sativus L. cv. Dar) leaves exposed to UV-B irradiation at a biologically effective dose of 9.5 kJ m-2d-1 showed decreased chlorophyll fluorescence parameter values versus the control; in peppermint (Mentha piperita L. cv. Asia) leaves those values were almost unchanged after treatment. Fv/Fo and Rfd were reduced more than other values, indicating inhibition of the oxygen-evolving complex and cooperation between the light and dark photosynthesis reactions as the primary targets of UV-B. The photosynthetic electron transport rate showed less change directly after irradiation, but after 24 h of recovery it was reduced to 50% of the control. Generally, photosystem II of peppermint leaves appeared more tolerant to the applied UV-B radiation than in cucumber leaves.
Wydawca
-
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Tom
53
Numer
1
Opis fizyczny
p.16-19,fig.,ref.
Twórcy
autor
  • Department of Physics and Agrophysics, West Pomeranian University of Technology, Papieza Pawła VI 3, 71-459 Szczecin, Poland
Bibliografia
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Bibliografia
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