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. 2016 Apr 27;7:513. doi: 10.3389/fpls.2016.00513

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Copyright © 2016 Ahmad, Abdel Latef, Abd_Allah, Hashem, Sarwat, Anjum and Gucel.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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A possible model showing the strategy of calcium (Ca) and/or potassium (K) induced cadmium tolerance in chickpea. Exposure of C. arietinum to Cd caused an increased in uptake and accumulation of Cd in plant cells. Elevated cellular-Cd induced chlorophyll (Chl)-destruction, ionic disorder, disruption in secondary metabolites, generation of reactive oxygen species (ROS), leading to suppression of plant growth and yield. On the other side, supplementation of Ca and or K resulted into mineral nutrient homeostasis, increased Chl content, accumulation of secondary compounds and higher antioxidant capacity all of which contributed to the mitigation of Cd-induced damage, leading to improved plant growth and yield.