Publication: Toxicity and bioaccumulation of cadmium and lead in salvinia cucullata.
Issued Date
2006
Resource Type
Language
eng
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Mahidol University
Bibliographic Citation
Journal of Environmental Biology. Vol. 27, (2006), 645-652
Suggested Citation
Siriwan Phetsombat., Maleeya Kruatrachue., Prayad Pokethitiyook., Suchart Upatham. Toxicity and bioaccumulation of cadmium and lead in salvinia cucullata.. Journal of Environmental Biology. Vol. 27, (2006), 645-652. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/8786
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Title
Toxicity and bioaccumulation of cadmium and lead in salvinia cucullata.
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Abstract
The toxicity and accumulation of heavy metals, cadmium (Cd) and lead
(Pb) in aquatic fern, Salvinia cucullata were studied. Plants were cultured
in Hoagland’s medium which was supplemented with 0.5, 1,2, and 4 mg/l
of Cd and 5, 10, and 40 mg/l of Pb and were separately harvested after 2,
4, 6 and 8 days. The toxicity symptoms of Cd and Pb to S. cucullata
showed chlorosis on leaves. There were significant deceases in the
relative growth, biomass productivity and total chlorophyll content when
the exposure time and concentration were increased. The accumulation
study showed the significant increases of both metals when the exposure
time and concentration were increased. The roots of S. cucullata had
higher Cd and Pb contents than leaves suggesting that the metals were
bound to the root cells and were partially transported to the leaves.