Muhammad Hamzah Saleem1, Shafaqat Ali2,3, Sana Irshad4, Muhammad Hussaan5, Muhammad Rizwan2, Muhammad Shoaib Rana6, Abeer Hashem7,8, Elsayed Fathi Abd Allah9, Parvaiz Ahmad7,10. 1. MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. 2. Department of Environmental Sciences and Engineering, Government College University Allama Iqbal Road, Faisalabad 38000, Pakistan. 3. Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan. 4. School of Environmental Studies, China university of Geosciences, Wuhan 430070, China. 5. Department of Botany, Government College University, Allama Iqbal Road, Faisalabad 38000, Pakistan. 6. Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Microelements Research Center, College of Resource and Environment, Huazhong Agricultural University, Wuhan 430070, China. 7. Botany and Microbiology Department, College of Science, King Saud University, P.O. Box. 2460, Riyadh 11451, Saudi Arabia. 8. Mycology and Plant Disease Survey Department, Plant Pathology Research Institute, ARC, Giza 12511, Egypt. 9. Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box. 2460, Riyadh 11451, Saudi Arabia. 10. Department of Botany, S.P. College, Srinagar 190001, Jammu and Kashmir, India.
Abstract
Copper (Cu) is an essential heavy metal for plants, but high Cu concentration in the soil causes phytotoxicity. Some plants, however, possess a system that can overcome Cu toxicity, such as Cu localization, and an active antioxidant defence system to reduce oxidative damage induced by high Cu concentration. The present study was conducted to explore the phytoremediation potential, morpho-physiological traits, antioxidant capacity, and fibre quality of jute (Corchorus capsularis) grown in a mixture of Cu-contaminated soil and natural soil at ratios of 0:1 (control), 1:0, 1:1, 1:2 and 1:4. Our results showed that high Cu concentration in the soil decreased plant growth, plant biomass, chlorophyll content, gaseous exchange, and fibre yield while increasing reactive oxygen species (ROS), which indicated oxidative stress induced by high Cu concentration in the soil. Antioxidant enzymes, such as superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) scavenge ROS in plant cells/tissues. Furthermore, high Cu concentration did not significantly worsen the fibre quality of C. capsularis, and this plant was able to accumulate a large amount of Cu, with higher Cu accumulation in its shoots than in its roots. Transmission electron microscopy (TEM) revealed that Cu toxicity affected different organelles of C. capsularis, with the chloroplast as the most affected organelle. On the basis of these results, we concluded that high Cu concentration was toxic to C. capsularis, reducing crop yield and plant productivity, but showing little effect on plant fibre yield. Hence, C. capsularis, as a fibrous crop, can accumulate a high concentration of Cu when grown in Cu-contaminated sites.
Copper (n>an class="Chemical">Cu) is an essential heavy metal for plants, but high Cu concentration in the soil causes phytotoxicity. Some plants, however, possess a system that can overcome Cutoxicity, such asCu localization, and an active antioxidant defence system to reduce oxidative damage induced by high Cu concentration. The present study was conducted to explore the phytoremediation potential, morpho-physiological traits, antioxidant capacity, and fibre quality of jute (Corchorus capsularis) grown in a mixture of Cu-contaminated soil and natural soil at ratios of 0:1 (control), 1:0, 1:1, 1:2 and 1:4. Our results showed that high Cu concentration in the soil decreased plant growth, plant biomass, chlorophyll content, gaseous exchange, and fibre yield while increasing reactive oxygen species (ROS), which indicated oxidative stress induced by high Cu concentration in the soil. Antioxidant enzymes, such as superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) scavenge ROS in plant cells/tissues. Furthermore, high Cu concentration did not significantly worsen the fibre quality of C. capsularis, and this plant was able to accumulate a large amount of Cu, with higher Cu accumulation in its shoots than in its roots. Transmission electron microscopy (TEM) revealed that Cutoxicity affected different organelles of C. capsularis, with the chloroplast as the most affected organelle. On the basis of these results, we concluded that high Cu concentration was toxic to C. capsularis, reducing crop yield and plant productivity, but showing little effect on plant fibre yield. Hence, C. capsularis, as a fibrous crop, can accumulate a high concentration of Cu when grown in Cu-contaminated sites.
Authors: Aishah Alatawi; Xiukang Wang; Arosha Maqbool; Muhammad Hamzah Saleem; Kamal Usman; Muhammad Rizwan; Tahira Yasmeen; Muhammad Saleem Arif; Shamaila Noreen; Afzal Hussain; Shafaqat Ali Journal: Int J Environ Res Public Health Date: 2022-01-31 Impact factor: 3.390
Authors: Bilal A Rather; Asim Masood; Zebus Sehar; Arif Majid; Naser A Anjum; Nafees A Khan Journal: Front Plant Sci Date: 2020-05-29 Impact factor: 5.753
Authors: Muhammad Hamzah Saleem; Shafaqat Ali; Saddam Hussain; Muhammad Kamran; Muhammad Sohaib Chattha; Shoaib Ahmad; Muhammad Aqeel; Muhammad Rizwan; Nada H Aljarba; Saad Alkahtani; Mohamed M Abdel-Daim Journal: Plants (Basel) Date: 2020-04-13