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

• Autorzy: Skorska E.
• 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.

Słowa kluczowe

EN

chlorophyll fluorescence; cucumber; Cucumis sativus; Mentha piperita; leaf; short-term irradiation; primary photosynthesis reaction; ultraviolet-B radiation; peppermint; photosynthesis; Asia cultivar; chloroplast membrane

• Wydawca: -
• Czasopismo: Acta Biologica Cracoviensia. Series Botanica
• Rocznik: 2011
• Tom: 53
• Numer: 1
• Opis fizyczny: p.16-19,fig.,ref.

Twórcy

autor

Skorska E.

• Department of Physics and Agrophysics, West Pomeranian University of Technology, Papieza Pawła VI 3, 71-459 Szczecin, Poland

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