Publication: Phytoaccumulation and phytotoxicity of cadmium and chromium in duckweed Wolffia globosa
Issued Date
2002-01-01
Resource Type
ISSN
15226514
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2-s2.0-0036414418
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Mahidol University
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SCOPUS
Bibliographic Citation
International Journal of Phytoremediation. Vol.4, No.2 (2002), 87-100
Suggested Citation
Benjaporn Boonyapookana, E. Suchart Upatham, Maleeya Kruatrachue, Prayad Pokethitiyook, Sombat Singhakaew Phytoaccumulation and phytotoxicity of cadmium and chromium in duckweed Wolffia globosa. International Journal of Phytoremediation. Vol.4, No.2 (2002), 87-100. doi:10.1080/15226510208500075 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/20005
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Title
Phytoaccumulation and phytotoxicity of cadmium and chromium in duckweed Wolffia globosa
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Abstract
The phytoaccumulation and phytotoxicity of heavy metals, cadmiun (Cd), and chromium (Cr) on a common duckweed, Wolffia globosa, were studied. W. globosa were cultured in 3% Hoagland's nutrient medium, which was supplemented with 1, 2, 4, and 8 mg/L of Cd and Cr and were separately harvested after 3, 6, 9, and 12 days. The accumulation of Cd and Cr in W. globosa showed significant increases when the exposure time and metal concentration were increased. The effects of Cd and Cr on the biomass productivity and total chlorophyll content in W. globosa indicated that there were significant decreases in the biomass productivity and total chlorophyll content when the exposure time and metal concentration were increased.