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Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza).
Chemosphere. 2007 Feb; 67(1):44-50.C

Abstract

The effects of multiple heavy metal stress on the activity of antioxidative enzymes and lipid peroxidation were studied in leaves and roots of two mangrove plants, Kandelia candel and Bruguiera gymnorrhiza, grown under control (10 per thousand NaCl nutrient solution) or five levels of multiple heavy metal stress (10 per thousand NaCl nutrient solution containing different concentration of Pb2+, Cd2+, and Hg2+). Leaves and roots of control and heavy metal-stressed plants were harvested after two months. In leaves of heavy metal-stressed plants superoxide dismutase (SOD) and peroxidase (POD) activities fluctuated in different stress levels compared to the control, while catalase (CAT) activity increased with stress levels in K. candel, but remained unchanged in leaves of B. gymnorrhiza. In comparison with the control, the dynamic tendency of SOD, CAT, and POD activities in roots of heavy metal-stressed plants all ascended, and then declined. The increase in enzyme activities demonstrated that K. candel is more tolerant to heavy metals than B. gymnorrhiza. Lipid peroxidation was enhanced only in leaves of heavy metal-stressed B. gymnorrhiza. These results indicate that in heavy-metal stress antioxidative activities may play an important role in K. candel and B. gymnorrhiza and that cell membrane in leaves and roots of K. candel have greater stability than those of B. gymnorrhiza. For pollution monitoring purposes, POD activity in roots and leaves maybe serve as a biomarker of heavy metal stress in K. candel, while lipid peroxidation maybe serve as biomarker in B. gymnorrhiza.

Authors+Show Affiliations

South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China. zhangfengqin05@yahoo.com.cnNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17123580

Citation

Zhang, Feng-Qin, et al. "Effect of Heavy Metal Stress On Antioxidative Enzymes and Lipid Peroxidation in Leaves and Roots of Two Mangrove Plant Seedlings (Kandelia Candel and Bruguiera Gymnorrhiza)." Chemosphere, vol. 67, no. 1, 2007, pp. 44-50.
Zhang FQ, Wang YS, Lou ZP, et al. Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza). Chemosphere. 2007;67(1):44-50.
Zhang, F. Q., Wang, Y. S., Lou, Z. P., & Dong, J. D. (2007). Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza). Chemosphere, 67(1), 44-50.
Zhang FQ, et al. Effect of Heavy Metal Stress On Antioxidative Enzymes and Lipid Peroxidation in Leaves and Roots of Two Mangrove Plant Seedlings (Kandelia Candel and Bruguiera Gymnorrhiza). Chemosphere. 2007;67(1):44-50. PubMed PMID: 17123580.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza). AU - Zhang,Feng-Qin, AU - Wang,You-Shao, AU - Lou,Zhi-Ping, AU - Dong,Jun-De, Y1 - 2006/11/22/ PY - 2006/05/04/received PY - 2006/08/26/revised PY - 2006/10/04/accepted PY - 2006/11/25/pubmed PY - 2007/4/3/medline PY - 2006/11/25/entrez SP - 44 EP - 50 JF - Chemosphere JO - Chemosphere VL - 67 IS - 1 N2 - The effects of multiple heavy metal stress on the activity of antioxidative enzymes and lipid peroxidation were studied in leaves and roots of two mangrove plants, Kandelia candel and Bruguiera gymnorrhiza, grown under control (10 per thousand NaCl nutrient solution) or five levels of multiple heavy metal stress (10 per thousand NaCl nutrient solution containing different concentration of Pb2+, Cd2+, and Hg2+). Leaves and roots of control and heavy metal-stressed plants were harvested after two months. In leaves of heavy metal-stressed plants superoxide dismutase (SOD) and peroxidase (POD) activities fluctuated in different stress levels compared to the control, while catalase (CAT) activity increased with stress levels in K. candel, but remained unchanged in leaves of B. gymnorrhiza. In comparison with the control, the dynamic tendency of SOD, CAT, and POD activities in roots of heavy metal-stressed plants all ascended, and then declined. The increase in enzyme activities demonstrated that K. candel is more tolerant to heavy metals than B. gymnorrhiza. Lipid peroxidation was enhanced only in leaves of heavy metal-stressed B. gymnorrhiza. These results indicate that in heavy-metal stress antioxidative activities may play an important role in K. candel and B. gymnorrhiza and that cell membrane in leaves and roots of K. candel have greater stability than those of B. gymnorrhiza. For pollution monitoring purposes, POD activity in roots and leaves maybe serve as a biomarker of heavy metal stress in K. candel, while lipid peroxidation maybe serve as biomarker in B. gymnorrhiza. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/17123580/Effect_of_heavy_metal_stress_on_antioxidative_enzymes_and_lipid_peroxidation_in_leaves_and_roots_of_two_mangrove_plant_seedlings__Kandelia_candel_and_Bruguiera_gymnorrhiza__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(06)01335-X DB - PRIME DP - Unbound Medicine ER -