. "Responses of growth and antioxidative enzymes to various concentrations of nickel in Zea mays leaves and roots. Fatemeh Ghasemi*, Reza Heidari, Rashid Jameii and Latifeh Purakbar". Iranian Journal of Plant Physiology, 2, 3, 2012, 427-434. doi: 10.22034/ijpp.2012.540777