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Antioxidant enzyme activities as biomarkers of Cu and Pb stress in Centella asiatica


Citation

Yap, Chee Kong and Tan, Wen Siang and Wong, Koe Wei and Ghim, Hock Ong and Wan, Hee Cheng and Nulit, Rosimah and Ibrahim, Mohd Hafiz and Chew, Weiyun and Edward Thomas, Franklin Berandah and Okamura, Hideo and Al-Mutairi, Khalid Awadh and Al-Shami, Salman Abdo and Sharifinia, Moslem and Mustafa, Muskhazli and Wah, June Leong and Chen, Feng You (2021) Antioxidant enzyme activities as biomarkers of Cu and Pb stress in Centella asiatica. Stresses, 1 (4). 253 - 265. ISSN 2673-7140

Abstract

The present study investigated the antioxidant enzyme activities (AEA) of ascorbate peroxidase (APX), catalase (CAT), guaiacol peroxidase (GPX), and superoxide dismutase (SOD) as biomarkers of Cu and Pb stress by using Centella asiatica grown in an experimental hydroponic condition. The results showed (i) higher accumulations of Cu and Pb in the roots of C. asiatica than those in the leaves, (ii) synergistic effects of Cu and Pb stress at higher metal-level exposures, and (iii) Cu and Pb stress triggered the increment of APX, CAT, GPX, and SOD levels in both the leaves and roots of C. asiatica. The increment of four AEA indicated that C. asiatica underwent oxidative stress caused by the production of reactive oxygen species when the plant was exposed to Cu and Pb. In order to prevent damages caused by Cu and Pb stress, the AEA system was heightened in C. asiatica, in which APX, CAT, GPX, and SOD can be used as biomarkers of Pb and Cu stress in the plant.


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Official URL or Download Paper: https://www.mdpi.com/2673-7140/1/4/18

Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Science
Institute of Bioscience
DOI Number: https://doi.org/10.3390/stresses1040018
Publisher: Multidisciplinary Digital Publishing Institute
Keywords: Pb; Cu; Centella asiatica; Antioxidant enzymes
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 21 Mar 2023 08:11
Last Modified: 21 Mar 2023 08:11
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/stresses1040018
URI: http://psasir.upm.edu.my/id/eprint/95931
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