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Molecules 2018, 23(9), 2320;

The Role of Heavy Metals in Plant Response to Biotic Stress

Department of Plant Physiology, Poznań University of Life Sciences, Wołyńska 35, 60-637 Poznań, Poland
Department of Plant Physiology, Vinh University, Le Duan 182, Vinh City, Vietnam
Department of Plant Ecophysiology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland
Research Unit “Induced Resistance and Plant Bioprotection”, UPRES EA 4707, Department of Biology and Biochemistry, Faculty of Sciences, University of Reims, P.O. Box 1039, 02 51687 Reims CEDEX, France
Author to whom correspondence should be addressed.
Received: 25 August 2018 / Revised: 6 September 2018 / Accepted: 8 September 2018 / Published: 11 September 2018
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The present review discusses the impact of heavy metals on the growth of plants at different concentrations, paying particular attention to the hormesis effect. Within the past decade, study of the hormesis phenomenon has generated considerable interest because it was considered not only in the framework of plant growth stimulation but also as an adaptive response of plants to a low level of stress which in turn can play an important role in their responses to other stress factors. In this review, we focused on the defence mechanisms of plants as a response to different metal ion doses and during the crosstalk between metal ions and biotic stressors such as insects and pathogenic fungi. Issues relating to metal ion acquisition and ion homeostasis that may be essential for the survival of plants, pathogens and herbivores competing in the same environment were highlighted. Besides, the influence of heavy metals on insects, especially aphids and pathogenic fungi, was shown. Our intention was also to shed light on the relationship between heavy metals deposition in the environment and ecological communities formed under a strong selective pressure. View Full-Text
Keywords: hormesis; toxic effect; heavy metals; biotic stressors; cross-talk; plant defence responses hormesis; toxic effect; heavy metals; biotic stressors; cross-talk; plant defence responses
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Morkunas, I.; Woźniak, A.; Mai, V.C.; Rucińska-Sobkowiak, R.; Jeandet, P. The Role of Heavy Metals in Plant Response to Biotic Stress. Molecules 2018, 23, 2320.

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