Enhancement of the Tolerance to Oxidative Stress in Cucumber (Cucumis sativus L.) Seedlings by UV-B Irradiation: Possible Involvement of Phenolic Compounds and Antioxidative Enzymes

2000 ◽  
Vol 113 (3) ◽  
pp. 311-317 ◽  
Author(s):  
Noriaki Kondo ◽  
Mika Kawashima
Keyword(s):  
Oxidative Stress ◽  
Phenolic Compounds ◽  
Cucumis Sativus ◽  
Antioxidative Enzymes ◽  
Cucumis Sativus L

Salicylic acid and phenolic compounds under cadmium stress in cucumber plants (Cucumis sativus L.)

2016 ◽  
Vol 38 (7) ◽  
Author(s):  
Jiri Simek ◽  
Jiri Tuma ◽  
Vlastimil Dohnal ◽  
Karel Musil ◽  
Zuzana Ducaiová
Keyword(s):  
Salicylic Acid ◽  
Phenolic Compounds ◽  
Cucumis Sativus ◽  
Cadmium Stress ◽  
Cucumis Sativus L

scholarly journals Relationships of Cold Acclimation and Antioxidative Enzymes with Chilling Tolerance in Cucumber (Cucumis sativus L.)

2003 ◽  
Vol 128 (5) ◽  
pp. 661-666 ◽  
Author(s):  
Yong In Kuk ◽  
Jae Hong Lee ◽  
Han Yong Kim ◽  
Soon Ju Chung ◽  
Gap Chae Chung ◽  
...  
Keyword(s):  
Cold Acclimation ◽  
Cucumis Sativus ◽  
Antioxidative Enzymes ◽  
Chilling Tolerance ◽  
Photon Flux ◽  
Leaf Water Content ◽  
Chilling Temperature ◽  
Photosynthetic Photon Flux ◽  
Cucumis Sativus L ◽  
Controlled Environments

To determine whether chilling tolerance is related to cold acclimation, changes in physiological responses and activity of antioxidative enzymes were investigated in leaves of cucumber (Cucumis sativus L.) grown in controlled environments. Plants were exposed to 15 °C (cold-acclimated) or 25 °C (nonacclimated) for 3 days, under 50 μmol·m-2·s-1 photosynthetic photon flux and 70% relative humidity. Plants were then exposed to 8 °C chilling temperature for 3 days, and allowed to recover in a growth chamber at 25 °C for 3 days. Measurements of leaf water content, cellular leakage, lipid peroxidation, chlorophyll a fluorescence, and quantum yield showed that cold-acclimated leaves were less affected by chilling compared to nonacclimated leaves. Cold-acclimated leaves recovered faster than nonacclimated leaves with regard to all variables examined. Catalase and ascorbate peroxidase activities were induced in cold-acclimated leaves, but not in nonacclimated leaves. These data indicate that cold acclimation increased chilling tolerance of cucumber in association with antioxidative enzymes.

Sign in / Sign up

Export Citation Format

Share Document