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Relative tolerance of a range of Australian native plant species and lettuce to copper, zinc, cadmium, and lead.
Arch Environ Contam Toxicol. 2010 Oct; 59(3):424-32.AE

Abstract

The tolerance of wild flora to heavy-metal exposure has received very little research. In this study, the tolerance of four native tree species, four native grass species, and lettuce to copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) was investigated in a root-elongation study using Petri dishes. The results of these studies show a diverse range of responses to Cu, Zn, Cd, and Pb amongst the tested plant species. Toxicity among metals decreased in the following order: Cd ~ Cu > Pb > Zn. Metal concentrations resulting in a 50% reduction in growth (EC(50)) varied considerably, ranging from (microM) 30 (Dichanthium sericeum) to >2000 (Acacia spp.) for Cu; from 260 (Lactuca sativa) to 2000 (Acacia spp.) for Zn; from 27 (L. sativa) to 940 (Acacia holosericea) for Cd; and from 180 (L. sativa) to >1000 (Acacia spp.) for Pb. Sensitive native plant species identified included D. sericeum, Casuarina cunninghamiana, and Austrodanthonia caespitosa. However, L. sativa (lettuce) was also among the most sensitive to all four metals. Acacia species showed a high tolerance to metal exposure, suggesting that the Acacia genus shows potential for use in contaminated-site revegetation.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Lamb DT
Centre for Environmental Risk Assessment and Remediation, University of South Australia, Adelaide, Australia.
Ming H
No affiliation info available
Megharaj M
No affiliation info available
Naidu R
No affiliation info available

MeSH

AustraliaCadmiumCopperGerminationLeadLettuceMetals, HeavyPlant DevelopmentPlant RootsPlantsPoaceaeSoil PollutantsToxicity TestsTreesZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20213195

Citation

Lamb, Dane T., et al. "Relative Tolerance of a Range of Australian Native Plant Species and Lettuce to Copper, Zinc, Cadmium, and Lead." Archives of Environmental Contamination and Toxicology, vol. 59, no. 3, 2010, pp. 424-32.
Lamb DT, Ming H, Megharaj M, et al. Relative tolerance of a range of Australian native plant species and lettuce to copper, zinc, cadmium, and lead. Arch Environ Contam Toxicol. 2010;59(3):424-32.
Lamb, D. T., Ming, H., Megharaj, M., & Naidu, R. (2010). Relative tolerance of a range of Australian native plant species and lettuce to copper, zinc, cadmium, and lead. Archives of Environmental Contamination and Toxicology, 59(3), 424-32. https://doi.org/10.1007/s00244-010-9481-x
Lamb DT, et al. Relative Tolerance of a Range of Australian Native Plant Species and Lettuce to Copper, Zinc, Cadmium, and Lead. Arch Environ Contam Toxicol. 2010;59(3):424-32. PubMed PMID: 20213195.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relative tolerance of a range of Australian native plant species and lettuce to copper, zinc, cadmium, and lead. AU - Lamb,Dane T, AU - Ming,Hui, AU - Megharaj,Mallavarapu, AU - Naidu,Ravi, Y1 - 2010/03/06/ PY - 2009/01/27/received PY - 2010/01/25/accepted PY - 2010/3/10/entrez PY - 2010/3/10/pubmed PY - 2010/10/19/medline SP - 424 EP - 32 JF - Archives of environmental contamination and toxicology JO - Arch Environ Contam Toxicol VL - 59 IS - 3 N2 - The tolerance of wild flora to heavy-metal exposure has received very little research. In this study, the tolerance of four native tree species, four native grass species, and lettuce to copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) was investigated in a root-elongation study using Petri dishes. The results of these studies show a diverse range of responses to Cu, Zn, Cd, and Pb amongst the tested plant species. Toxicity among metals decreased in the following order: Cd ~ Cu > Pb > Zn. Metal concentrations resulting in a 50% reduction in growth (EC(50)) varied considerably, ranging from (microM) 30 (Dichanthium sericeum) to >2000 (Acacia spp.) for Cu; from 260 (Lactuca sativa) to 2000 (Acacia spp.) for Zn; from 27 (L. sativa) to 940 (Acacia holosericea) for Cd; and from 180 (L. sativa) to >1000 (Acacia spp.) for Pb. Sensitive native plant species identified included D. sericeum, Casuarina cunninghamiana, and Austrodanthonia caespitosa. However, L. sativa (lettuce) was also among the most sensitive to all four metals. Acacia species showed a high tolerance to metal exposure, suggesting that the Acacia genus shows potential for use in contaminated-site revegetation. SN - 1432-0703 UR - https://www.unboundmedicine.com/medline/citation/20213195/Relative_tolerance_of_a_range_of_Australian_native_plant_species_and_lettuce_to_copper_zinc_cadmium_and_lead_ L2 - https://dx.doi.org/10.1007/s00244-010-9481-x DB - PRIME DP - Unbound Medicine ER -