Effect of Heavy Metals on Morphology of Plants: A Review

Heavy metals refer to any metallic element that has relatively high density and is toxic or poisonous even at low concentration. Soils polluted with heavy metals have become come due to increase in anthropogenic and geological activities. Heavy metals enter the food chain through plants. Plants are most important source for humans as well as animals in terms of food medicine etc. Because without plants a man cannot live a long healthy life on earth as plants have a long history for using curing disease of living creatures on earth. This review focuses on the heavy metal stress that makes changes in the morphology of plants like reduction in the growth and productivity and even the production is unsafe for the use.