Vol. 11, Special Issue 7 (2022)

Author(s):
Satish Kumar, Dr. Vandna Chhabra and Ujjwal Bishnoi

Abstract:
Heavy metals (HM) pollute the soil environment & affect human, plant health. These heavy metals are continuously increasing in soil due to natural, anthropogenic activities. Mainly industrial waste & inorganic heavy metal contains pesticide. On the basis of their value for plant & essentiality these are divide into two group: (Mn, Fe, Zn, Cu, Mg, Ni & Mo) heavy metals are essential for the completing the physiological & biological growth of the plant & on the other hand non-essential for plant with unknown of their need are: Cd, Cr, Pb, As, Sb, Ag & Hg etc. In this review paper study of source of heavy metals, effect of on plant growth, uptake of heavy metal in plant means how its translocation of heavy metals particularly As. Rice uptake more As compared to other cereal crop. Translocation of As from root part to shoot part, shoot part to grains. As uptake by the silicon pathway & phosphate pathways in rice plant. In silicon pathway As transporter are Lsi1& Lsi 2 but in phosphate: osPT8, osPT4 etc. In sense of As toxicity West Bengal region is more affected as compared to Trans Indo-Gangetic Plain (TIGP): Haryana, Punjab, Delhi region (Average–196 µg kg-1). As in plant in decreasing order root > shoot > grain but in grain hull> bran polish > brown rice > raw rice > polish rice.