Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica

This study was carried out by using Centella asiatica grown using a hydroponic system under laboratory conditions to study synergistic and antagonistic effects of Zn bioaccumulation with added Pb and the changes in antioxidant activities in leaves and roots of C. asiatica. The antioxidant activities...

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Main Authors:	G.H., Ong, C.K., Yap, Maziah, M., S.G., Tan
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6617/ http://journalarticle.ukm.my/6617/ http://journalarticle.ukm.my/6617/1/02_G.H._Ong.pdf

id	ukm-6617
recordtype	eprints
spelling	ukm-66172016-12-14T06:41:42Z http://journalarticle.ukm.my/6617/ Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica G.H., Ong C.K., Yap Maziah, M. S.G., Tan This study was carried out by using Centella asiatica grown using a hydroponic system under laboratory conditions to study synergistic and antagonistic effects of Zn bioaccumulation with added Pb and the changes in antioxidant activities in leaves and roots of C. asiatica. The antioxidant activities included superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase (GPX). The treatments Zn (2 ppm) + Pb (0.4 ppm) and Zn (4 ppm) + Pb (0.6 ppm) increased the accumulation of Zn in leaves by 14.06 and 16.84%, respectively, but decreased by 7.36% uptake in roots (Zn 4 ppm + Pb 0.6 ppm). This showed that Pb and Zn acted synergistically to Zn accumulation in leaves but antagonistically in roots. CAT and SOD activities in leaves were increased when Zn was added together with Pb. In roots, CAT, APX and SOD activities were increased but GPX was decreased. Owing to their sensitivities to Zn with Pb, SOD and CAT could be used as biomarkers to monitor the toxicity of Pb and Zn exposure in the leaves and roots of C. asiatica. Universiti Kebangsaan Malaysia 2013-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6617/1/02_G.H._Ong.pdf G.H., Ong and C.K., Yap and Maziah, M. and S.G., Tan (2013) Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica. Sains Malaysiana, 42 (11). pp. 1549-1555. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This study was carried out by using Centella asiatica grown using a hydroponic system under laboratory conditions to study synergistic and antagonistic effects of Zn bioaccumulation with added Pb and the changes in antioxidant activities in leaves and roots of C. asiatica. The antioxidant activities included superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase (GPX). The treatments Zn (2 ppm) + Pb (0.4 ppm) and Zn (4 ppm) + Pb (0.6 ppm) increased the accumulation of Zn in leaves by 14.06 and 16.84%, respectively, but decreased by 7.36% uptake in roots (Zn 4 ppm + Pb 0.6 ppm). This showed that Pb and Zn acted synergistically to Zn accumulation in leaves but antagonistically in roots. CAT and SOD activities in leaves were increased when Zn was added together with Pb. In roots, CAT, APX and SOD activities were increased but GPX was decreased. Owing to their sensitivities to Zn with Pb, SOD and CAT could be used as biomarkers to monitor the toxicity of Pb and Zn exposure in the leaves and roots of C. asiatica.
format	Article
author	G.H., Ong C.K., Yap Maziah, M. S.G., Tan
spellingShingle	G.H., Ong C.K., Yap Maziah, M. S.G., Tan Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica
author_facet	G.H., Ong C.K., Yap Maziah, M. S.G., Tan
author_sort	G.H., Ong
title	Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica
title_short	Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica
title_full	Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica
title_fullStr	Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica
title_full_unstemmed	Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica
title_sort	synergistic and antagonistic effects of zinc bioaccumulation with lead and antioxidant activities in centella asiatica
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6617/ http://journalarticle.ukm.my/6617/ http://journalarticle.ukm.my/6617/1/02_G.H._Ong.pdf
first_indexed	2023-09-18T19:47:23Z
last_indexed	2023-09-18T19:47:23Z
_version_	1777405991400243200

Synergistic and antagonistic effects of Zinc Bioaccumulation with lead and antioxidant activities in centella asiatica

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