Foliar metabolism and oxidative stress indicators of radish (Raphanus sativus L.) grown in salt contaminated soil
February 18, 2020
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| Article Title: | Foliar metabolism and oxidative stress indicators of radish (Raphanus sativus L.) grown in salt contaminated soil |
| Authors: | Acila S., Allioui N. |
| Affiliation: | Department of Biology, Faculty of Nature and Life Sciences, University of Echahid Hamma Lakhdar, El-Oued, Algeria Department of Ecology and Environmental Engineering, Faculty of Nature and Life Sciences and Earth and Universe Sciences, University of May 8th, 1945 Guelma, Algeria |
| Abstract: | In order to elucidate the impact of soil salinity on foliar metabolism indicators of radish (Raphanus sativus L.), two genotypes of Radish “National” and “Cerise” were subjected to increasing salt treatments add ECe of soil (control (0.6 dS m-1), 5.63 and 12.18 dS m-1). The laboratory test showed that soil salinity had adverse effects on most of the physiological and biochemical parameters in the leaves of both radish varieties. Chlorophyll pigments decreased in the two radish varieties and the rate of chlorophyll degradation was higher in “Cerise” vr. under severe salinity stress. On the other hand, leaf carotenoids substantially decreased in “National” vr. The total soluble sugars and total soluble proteins decreased in both radish varieties under salinity stress. However, total soluble proteins were higher in the salt stressed leaves of “Cerise” vr. These results showed that greater salt tolerance in “National” vr. was associated with phenolics and antioxidant activity which indicated stimulation of foliar metabolism associated with antioxidant potential. |
| Keywords: | radish (Raphanus sativus L.), salinity tolerance indicators, antioxidants, phenolics, soluble sugars |
| *Correspondence: | Smail Acila, Department of Biology, Faculty of Nature and Life Sciences, University of Echahid Hamma Lakhdar, El-Oued , PO Box 789 El-Oued 39000, Algeria, Tel/Fax: (+ 213) 32 12 07 63, E-mail: smailacila@gmail.com or smail-acila@univ-eloued.dz |
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