Understanding of rhizospheric Cymbopogon citratus-Saphylococcus succinus interactions for phytoremediation of dibenzofuran contaminated soil
Dioxins or dioxin-like compounds is a group of chloroaromatic compounds which is a highly persistent chemical and accumulates in the environment as well as increasing their distribution in our ecosystem. Phytoremediation is one of the tolerable ways that has been operated to battle out the problem...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Kulliyah of Engineering, International Islamic University Malaysia
2016
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| Online Access: | http://irep.iium.edu.my/51683/ http://irep.iium.edu.my/51683/ http://irep.iium.edu.my/51683/1/51683-new.pdf |
| Summary: | Dioxins or dioxin-like compounds is a group of chloroaromatic compounds which is a highly persistent
chemical and accumulates in the environment as well as increasing their distribution in our ecosystem.
Phytoremediation is one of the tolerable ways that has been operated to battle out the problem of
contaminants. This study investigated how lemongrass (Cymbopogon citratus) ecophysiological traits and soil
enzyme activities will be influenced by dibenzofuran (DBF) pollution in rhizospheric zone as a potential
remediator. Lemongrass was planted into uncontaminated soil and DBF-contaminated soil. Four treatments
were conducted; soil, soil with plant, soil with bacteria, and soil with plant and bacteria. After one month
exposure, the plant traits such as leaf and root length, aboveground and belowground mass, chlorophyll
content and soil enzymes activities were examined to investigate the sensitivity of lemongrass towards DBF.
With the presence of DBF in soil, leaf and root length, and, aboveground and belowground mass were
decreased compared to control. However, with inoculation of Staphylococcus succinus in soil, these plant
traits were significantly higher than control, suppressing the effects of DBF. The chlorophyll content of
lemongrass indicates slightly significance difference showing a less or no effect of DBF. Nevertheless, enzyme
activities of asparaginase and protease exhibited higher activity than uncontaminated soil. This shows that
lemongrass and Staphylococcus succinus has an interaction within rhizospheric area that might help the
degradation of DBF and increase the lemongrass growth. |
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