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The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.

This study was carried out by using Centella asiatica grown using a hydroponic system under laboratory conditions to determine the effects of Cu exposure on Zn accumulation and antioxidant activities of the plant. The antioxidant activities include superoxide dismutase (SOD), catalase (CAT), ascorba...

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Main Authors: Ong, G.H., Yap, Chee Kong, Mahmood, Maziah, Tan, Soon Guan
Format: Article
Language:English
Published: EM International 2011
Online Access:http://psasir.upm.edu.my/id/eprint/22288/
http://www.envirobiotechjournals.com/
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spelling my.upm.eprints.222882014-01-02T04:36:55Z http://psasir.upm.edu.my/id/eprint/22288/ The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica. Ong, G.H. Yap, Chee Kong Mahmood, Maziah Tan, Soon Guan This study was carried out by using Centella asiatica grown using a hydroponic system under laboratory conditions to determine the effects of Cu exposure on Zn accumulation and antioxidant activities of the plant. The antioxidant activities include superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase (GPX). The treatments Zn2ppm+Cu0.1ppm and Zn6ppm+Cu0.5ppm reduced the accumulation of Zn in leaves but increased the uptake in roots (Zn6ppm+Cu0.5ppm). This showed that Cu and Zn acted antagonistically to each other in leaves but synergistically on each other in roots. GPX, APX and SOD activity in leaves were increased while in roots only GPX and SOD activity were increased when Zn was added together with Cu. Therefore, SOD and GPX could be used as biomarkers to monitor the toxicity of Cu and Zn in C. asiatica. EM International 2011 Article PeerReviewed Ong, G.H. and Yap, Chee Kong and Mahmood, Maziah and Tan, Soon Guan (2011) The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica. Asian Journal of Microbiology, Biotechnology & Environmental Sciences, 13 (3). pp. 387-392. ISSN 0972-3005 http://www.envirobiotechjournals.com/ English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description This study was carried out by using Centella asiatica grown using a hydroponic system under laboratory conditions to determine the effects of Cu exposure on Zn accumulation and antioxidant activities of the plant. The antioxidant activities include superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase (GPX). The treatments Zn2ppm+Cu0.1ppm and Zn6ppm+Cu0.5ppm reduced the accumulation of Zn in leaves but increased the uptake in roots (Zn6ppm+Cu0.5ppm). This showed that Cu and Zn acted antagonistically to each other in leaves but synergistically on each other in roots. GPX, APX and SOD activity in leaves were increased while in roots only GPX and SOD activity were increased when Zn was added together with Cu. Therefore, SOD and GPX could be used as biomarkers to monitor the toxicity of Cu and Zn in C. asiatica.
format Article
author Ong, G.H.
Yap, Chee Kong
Mahmood, Maziah
Tan, Soon Guan
spellingShingle Ong, G.H.
Yap, Chee Kong
Mahmood, Maziah
Tan, Soon Guan
The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.
author_facet Ong, G.H.
Yap, Chee Kong
Mahmood, Maziah
Tan, Soon Guan
author_sort Ong, G.H.
title The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.
title_short The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.
title_full The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.
title_fullStr The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.
title_full_unstemmed The effect of Cu exposure on the bioaccumulation of Zn and antioxidant activities in different parts of Centella asiatica.
title_sort effect of cu exposure on the bioaccumulation of zn and antioxidant activities in different parts of centella asiatica.
publisher EM International
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/22288/
http://www.envirobiotechjournals.com/
_version_ 1643827784392376320
score 13.211869

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