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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universiti Kebangsaan Malaysia
2013
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| Online Access: | http://journalarticle.ukm.my/6617/1/02_G.H._Ong.pdf |
| _version_ | 1796930337853407232 |
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| author | G.H., Ong C.K., Yap Maziah, M. S.G., Tan |
| author_facet | G.H., Ong C.K., Yap Maziah, M. S.G., Tan |
| author_sort | G.H., Ong |
| collection | UKM |
| 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. |
| first_indexed | 2024-03-06T04:01:34Z |
| format | Article |
| id | ukm.eprints-6617 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T04:01:34Z |
| publishDate | 2013 |
| publisher | Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | ukm.eprints-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/ |
| 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 |
| title | 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_short | 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 |
| url | http://journalarticle.ukm.my/6617/1/02_G.H._Ong.pdf |
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