Metal resistance in populations of red maple (Acer rubrum L.) and white birch (Betula papyrifera Marsh.) from a metal-contaminated region and neighbouring non-contaminated regions

Environmental Pollution
Fallon M KirkeyPeter Ryser

Abstract

Metal resistance in populations of Acer rubrum and Betula papyrifera in the industrially contaminated region of Sudbury, Ontario, was compared with resistance in populations from neighbouring uncontaminated regions. In two one-season experiments, seedlings were grown outdoors on contaminated (mainly Cu, Ni) and uncontaminated substrates. Sudbury populations of both species responded less to contamination than populations from uncontaminated regions. In A. rubrum this difference was small. For both species, Sudbury plants were smaller when grown on uncontaminated substrate. B. papyrifera from Sudbury grew better on contaminated substrate than the other populations. There is indication of variation in metal resistance within the populations from the non-contaminated regions. The data shows that trees may develop adaptive resistance to heavy metals, but the low degree of resistance indicates that the development of such resistances are slower than observed for herbaceous species with shorter generation times.

References

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Jan 24, 2007·Environmental Pollution·Maria Noel Dos Santos UtmazianWalter W Wenzel
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Citations

Sep 12, 2012·Journal of Experimental Botany·Nayana Dilini Gardiyehewa de SilvaPeter Ryser
May 28, 2016·Bulletin of Environmental Contamination and Toxicology·Gabriel Theriault, Kabwe Nkongolo
Aug 10, 2017·Environmental Science and Pollution Research International·Mirosław MleczekPrzemysław Niedzielski
Mar 24, 2018·Bulletin of Environmental Contamination and Toxicology·Charnelle L Djeukam, Kabwe Nkongolo
Jan 23, 2021·Environmental Science and Pollution Research International·Eugen Belskii, Elena Belskaya

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