TY - GEN
T1 - Toxicity of cadmium on different rice genotypes
AU - Liu, Jianguo
AU - Zhu, Zhongquan
AU - Li, Dinglong
AU - Wong, Ming H.
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - To understand the differences between rice genotypes in cadmium (Cd) tolerance, pot soil experiments were conducted with two rice genotypes at different soil Cd levels, i.e. 0 (the control), 10, 50 mg kg-1. The results showed that the two rice genotypes were tolerant to the soil Cd level of 10 mg kg-1, but the soil Cd concentration of 50 mg kg-1 was an effective soil Cd level that inhibited rice growth and reduced rice grain yield. The genotype Indica was more sensitive to soil Cd stress than the genotype Japonica, especially in root growth. Rice roots were more sensitive to soil Cd stress than shoots and grains. So the response of root to Cd stress may serve as a potential indicator of rice cultivars and genotypes in Cd tolerance. The toxicity of Cd on rice growth had accumulative effects in earlier stages of rice growth as the prolonging of Cd stress on rice plants, but some adaptations and growth compensations to Cd stress may occur in rice plants at later growth stages.
AB - To understand the differences between rice genotypes in cadmium (Cd) tolerance, pot soil experiments were conducted with two rice genotypes at different soil Cd levels, i.e. 0 (the control), 10, 50 mg kg-1. The results showed that the two rice genotypes were tolerant to the soil Cd level of 10 mg kg-1, but the soil Cd concentration of 50 mg kg-1 was an effective soil Cd level that inhibited rice growth and reduced rice grain yield. The genotype Indica was more sensitive to soil Cd stress than the genotype Japonica, especially in root growth. Rice roots were more sensitive to soil Cd stress than shoots and grains. So the response of root to Cd stress may serve as a potential indicator of rice cultivars and genotypes in Cd tolerance. The toxicity of Cd on rice growth had accumulative effects in earlier stages of rice growth as the prolonging of Cd stress on rice plants, but some adaptations and growth compensations to Cd stress may occur in rice plants at later growth stages.
KW - Cadmium (Cd)
KW - Genotype
KW - Rice
KW - Tolerance
UR - http://www.scopus.com/inward/record.url?scp=77956136550&partnerID=8YFLogxK
U2 - 10.1109/ICBBE.2010.5516170
DO - 10.1109/ICBBE.2010.5516170
M3 - Conference proceeding
AN - SCOPUS:77956136550
SN - 9781424447138
T3 - 2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
BT - 2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
T2 - 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
Y2 - 18 June 2010 through 20 June 2010
ER -