Mungbean: A nickel indicator, accumulator or excluder?

Seeds of the two mungbean cultivars were exposed to 25, 30, 35 and 40 mg L-1 nickel along with control. Nickel stress decreased growth, photosynthetic pigments, yield attributes and cation (Na+, K+ and Ca2+) accumulation in mungbean. This reduction was less at 25 mg L-1 as compared to 40 mg L-1 nickel. In addition, nickel was mainly stored in roots and restricted transfer to the aerial parts (shoot and least by leaves) was observed.