Assessment of the absorption ability of nitrate and lead by japanese raisin under salt stress conditions
Keywords:Phytoremediation, Proline, Malondialdehyde, Salinity, Antioxidant enzymes, Heavy metal
Heavy metals pollution is an important challenge that was cussed by human activity, this stress decreases under salinity. The aim of this study was to investigate the ability of Japanese raisin in the absorption of nitrate (0, 30, and 60 mgL-1) and lead (0, 300, and 600 mgL-1) under salinity stress (0 as control and 3 and 6 dSm-1). Results showed that the studied plant continued to uptake nitrate and potassium under stress conditions of Pb and salinity. Although Na and Cl uptake were observed as a defense mechanism in the plant, the K/Na ratio, and K content increased from 1 to 6 and from 1.8 to 5%, respectively. Also, the most appropriate physiological responses were observed at treatments under contamination level of 300 mg Pb and salinity level of 3 dSm-1, so that the synthesis of malondialdehyde (MDA) and enzymatic activity increased at these levels of HMs and salinity. Based on the results, the studied species were able to uptake moderate concentrations of Pb (34.1-71mg kg-1) under experimental conditions. Hence, its potential for the clean-up of some contaminants in the environment can be considered by researchers for further research.
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Copyright (c) 2022 Seyedeh Mahsa Hosseini, Sepideh Kalatejari, Mohsen Kafi, Babak Motesharezadeh
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