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https://hdl.handle.net/20.500.14279/13609
Title: | The combined and single effect of salinity and copper stress on growth and quality of Mentha spicata plants | Authors: | Chrysargyris, Antonios Papakyriakou, Eleftheria Petropoulos, Spyridon A. Tzortzakis, Nikos G. |
Major Field of Science: | Agricultural Sciences | Field Category: | Agriculture Forestry and Fisheries | Keywords: | Essential oils;Heavy metals;Oxidative stress;Salinity stress;Spearmint | Issue Date: | 15-Apr-2019 | Source: | Journal of Hazardous Materials, 2019, vol. 368, pp. 584-593 | Volume: | 368 | Start page: | 584 | End page: | 593 | Journal: | Journal of Hazardous Materials | Abstract: | Copper is essential for plant growth, but in excess may cause adverse effects on plant physiology. Harmful effects are also caused by plant exposure to salinity (NaCl) due to the excessive use of fertilizers, soil degradation and/or the quality of the water used for irrigation. The impact of single and combined salinity (Sal) and copper (Cu) stress on spearmint metabolism were studied in hydroponics. Spearmint plants (Mentha spicata L.) were subjected to salinity stress (150 mM NaCl) and/or excessive Cu concentration (60 μM Cu) via the nutrient solution. Not only Sal and Cu, but also their combination suppressed plant growth by decreasing plant biomass, root fresh weight and plant height. Chlorophyll content decreased mainly for the combined stress treatment (Sal + Cu). Polyphenols and antioxidants (FRAP, DPPH, ABTS) increased in single stress treatments (Sal or Cu), but decreased in the combined stress (Sal + Cu). The application of Sal or Cu stress decreased Zn, N and K (leaves), K, Ca, P and Mg (roots) content. Copper application increased Ca and Mg in leaves. In conclusion, salinity stress and Cu exposure may change the primary metabolic pathways in favor of major volatile oil components biosynthesis, resulting in significant changes of essential oil yield and composition. | ISSN: | 18733336 | DOI: | 10.1016/j.jhazmat.2019.01.058 | Rights: | © Elsevier | Type: | Article | Affiliation : | Cyprus University of Technology University of Thessaly |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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