文档介绍：Toxicity of Lead on Different Rice Genotypes
Jianguo Liu*, Jianwei Shen, Dinglong Li Jiakuan Xu
School of Environmental and Safety Engineering, Agricultural and Forestry Bureau of Changzhou,
Jiangsu Polytechnic University, Changzhou, Jiangsu 213001,
Changzhou, Jiangsu 213164, China China
E-mail: ******@jpu.
Abstract—To attempt to understand the differences between rice lead (Pb) is toxic to an systems of human body, such
genotypes in lead (Pb) tolerance, pot soil experiments were as the central and peripheral nervous system, the red blood
conducted with two rice genotypes at different soil Pb levels, . cells, the kidneys, the cardiovascular systems, and the male
0 (the control), 800, 2000 mg kg-1. The results showed that the
-1 and female ans. It is currently considered by
soil Pb concentration of 800 mg kg is moderately toxic to rice, the International Agency for Research on Cancer (IARC) to be
with 10%-30% decreases in plant biomasses. The soil Pb
concentration of 2000 mg kg-1 is a soil Pb level that will severely a possible human carcinogen (group 2B) [5]. So the absorption
inhibit rice growth, with 20%-50% decreases in plant biomasses and transport of Pb by crops are of great concern.
and significant reductions in grain yields (P<). The genotype
Indica was generally more sensitive to soil Pb stress than the The levels of Pb