Abstract
Metals in the environment constitute a stress and a selective factor for plants, since they are genotoxic and toxic at high concentration. Plant responses to metals demonstrate the existence of different mechanisms for resistance, tolerance, accumulation and hyperaccumulation. This chapter analyses the most recent literature on the subject to highlight the different approaches which have been applied to elucidate the genetic and molecular bases of tolerance and accumulation. The data show that our knowledge of these events is not yet complete and that new research areas are needed.
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We thank the authors of papers and reviews cited in the chapter, and apologise to the authors who have not been cited due to space constraints. We acknowledge financial support by PRIN contracts (Italian Ministry of University). We thank Prof. Nelson Marmiroli for critical reading of the manuscript and helpful suggestions.
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Maestri, E., Marmiroli, M. (2012). Genetic and Molecular Aspects of Metal Tolerance and Hyperaccumulation. In: Gupta, D., Sandalio, L. (eds) Metal Toxicity in Plants: Perception, Signaling and Remediation. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-22081-4_3
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