More attention has been paid to Cytomin, one of the activest members of phytohormone, since found in 1960s. Recently, the studies on cytomin are mainly focused on the field of tissue culture and regulation of gene expression, etc. and a few have been done on anti-adversity (such as drought, waterlog and salt stress) and antiaging. But, because of atmospheric sedimentation, geological leakage, untreated industrial effluents, and waste dischargement, heavy metals have become one of the primary factors that br...