Response of Lemna Minor and salvinia natans as bio-sequester and removal agents toward Fe, Cu and Zn toxicities through in vivo model system
A lack of macrophytes in aquatic ecosystem may suggest a reduced population of wildlife whereas the absence of macrophytes may indicate problems in water quality. However an overabundance of macrophytes may due to excessive nutrients, organic or heavy metals interference. Aquatic macrophytes are...
| Main Authors: | , , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
2014
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/40336/ http://irep.iium.edu.my/40336/ http://irep.iium.edu.my/40336/1/ICEEEAS545.pdf http://irep.iium.edu.my/40336/3/ICEEEAS-545-_8-20.pdf |
| Summary: | A lack of macrophytes in aquatic ecosystem may suggest a reduced population of wildlife
whereas the absence of macrophytes may indicate problems in water quality. However an
overabundance of macrophytes may due to excessive nutrients, organic or heavy metals
interference. Aquatic macrophytes are well known as a good accumulator for heavy metals in
phyto-technologies approach since the last decades. Therefore this study aimed to assess heavy
metals sequestration rate of Lemna minor and Salvinia natans at three different concentrations
ranging from low, medium and high (1 mglˉ¹, 2 mglˉ¹ and 5 mglˉ¹) of three types of heavy metal
(Cu, Fe and Zn) at four different period of time (week 1 until week 4) through in vivo model
system. The results established that there were significantdifferences between the sequestration
rate of both species.S. natans ability and resistance over 3 types of heavy metal toxicity were
much more higher and stable compared to L. minor and the capability of both species were varied
and depending on the plant tolerance or resistance mechanism itself. Thus, the high correlation
between metal removal in water and aquatic plant species indicates that those plants can
effectively use for the removal of heavy metals from polluted or contaminated aquatic ecosystem
of different concentrations. |
|---|