Volume 8, Issue 33 (vol. 8, no. 33, 2020 2019)
2019, 8(33): 107-122 |
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Aghaei K, Rahkhosravani B, Moghanlu L, ghotbi ravandi A A. Analysis of cadmium accumulation and its effects on some biochemical and physiological characters of basil plants. Plant Process and Function 2019; 8 (33) :107-122
URL: http://jispp.iut.ac.ir/article-1-1133-en.html
URL: http://jispp.iut.ac.ir/article-1-1133-en.html
1- Department of Biology, Faculty of Sciences, The University of Zanjan, Zanjan , keyvanaghaei@znu.ac.ir
2- Department of Biology, Faculty of Sciences, The University of Zanjan, Zanjan
3- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran
2- Department of Biology, Faculty of Sciences, The University of Zanjan, Zanjan
3- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran
Abstract: (2739 Views)
Basil (Ocimum basilicum L.) is a highly used as an edible and medicinal plant. As in some places of Zanjan province basil plant is cultured and contaminated by heavy metals, such as toxic cadmium metal, a research for analyzing Cd accumulation and its effects on some physiological and biochemical traits of this plant was performed. Seeds were cultured in plastic pots containing perlite and Hoagland’s culture medium in a hydroponic condition. After three weeks, plantlets with enough growth were treated by different concentrations of Cd including: 0 (control), 2, 4 and 8 mM for two weeks. Results showed that, root and shoot dry weight, root and shoot length as well as chlorophyll a and b and carotenoids contents and leaf area in all Cd treatments were decreased compared to the control plants. 8 mM Cd treatment showed the maximum decrease in all above traits. The content of soluble proteins, proline and soluble sugars of roots and shoots of treated plants increased at all Cd treatments compared to the control plants. The activity of catalase enzyme was decreased in roots and shoots of Cd treated plants. However; the activity of peroxidase was increased at all Cd treatments. The concentration of Cd in roots of treated plants was about three times higher than that of shoots at 8 mM Cd concentration. As a conclusion, basil plants showed a little tolerance against Cd heavy metal by increasing of their peroxidase activity, proline, soluble sugars and protein contents. However, they were not able to prevent Cd penetration to their roots and especially shoot contaminated them.
Type of Study: Research |
Subject:
Toxic ions stress
Received: 2018/10/7 | Accepted: 2019/04/13 | Published: 2020/05/11
Received: 2018/10/7 | Accepted: 2019/04/13 | Published: 2020/05/11
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