DocumentCode
3345569
Title
Notice of Retraction
Uptake and Distribution of Cadmium in Different Rice Cultivars
Author
Xuemei Leng ; Jianguo Liu ; Mingxin Wang ; Dinglong Li ; Qinghua Dai
Author_Institution
Sch. of Environ. & Safety Eng., Changzhou Univ., Changzhou, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
To investigate the variations between rice cultivars in cadmium (Cd) uptake and distribution, pot soil experiments were conducted with two rice cultivars of different genotypes at different soil Cd levels, i.e. 0 (the control), 10, 50 mg kg-1. The results showed that Cd concentrations and accumulations in the plants of Shanyou 63 (genotype indica) were generally higher than those of Wuyunjing 7 (genotype japonica), but the magnitudes of the differences between two rice cultivars differed greatly with soil Cd levels, plant organs and plant growth stages. Among different soil Cd levels, the magnitudes of the differences were the largest under soil Cd treatment of 10 mg kg-1. Concerning different parts of rice plants, the magnitudes of the differences were the highest in the grains. Most of Cd absorbed by rice plants accumulated in roots (From about 75% to about 94%), and only a very small portion of Cd was transferred into grains (less than 1%). The differences between the rice cultivars in Cd distribution were also the largest under soil Cd treatment of 10 mg kg-1, and in the grains. The results showed that the rice cultivar Shanyou 63 had higher abilities to absorb Cd from Cd-contaminated soil and transferred a larger proportion to aboveground parts and grain than the cultivar Wuyunjing 7, especially in relatively low levels of soil Cd contamination (for example, 10 mg kg-1). The results indicate that Cd concentration in rice grain is governed by plant Cd uptake and the- transport of Cd from root to shoot, and may be in a greater extent, by the transport of Cd from shoot to grain.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
To investigate the variations between rice cultivars in cadmium (Cd) uptake and distribution, pot soil experiments were conducted with two rice cultivars of different genotypes at different soil Cd levels, i.e. 0 (the control), 10, 50 mg kg-1. The results showed that Cd concentrations and accumulations in the plants of Shanyou 63 (genotype indica) were generally higher than those of Wuyunjing 7 (genotype japonica), but the magnitudes of the differences between two rice cultivars differed greatly with soil Cd levels, plant organs and plant growth stages. Among different soil Cd levels, the magnitudes of the differences were the largest under soil Cd treatment of 10 mg kg-1. Concerning different parts of rice plants, the magnitudes of the differences were the highest in the grains. Most of Cd absorbed by rice plants accumulated in roots (From about 75% to about 94%), and only a very small portion of Cd was transferred into grains (less than 1%). The differences between the rice cultivars in Cd distribution were also the largest under soil Cd treatment of 10 mg kg-1, and in the grains. The results showed that the rice cultivar Shanyou 63 had higher abilities to absorb Cd from Cd-contaminated soil and transferred a larger proportion to aboveground parts and grain than the cultivar Wuyunjing 7, especially in relatively low levels of soil Cd contamination (for example, 10 mg kg-1). The results indicate that Cd concentration in rice grain is governed by plant Cd uptake and the- transport of Cd from root to shoot, and may be in a greater extent, by the transport of Cd from shoot to grain.
Keywords
cadmium; crops; food safety; health hazards; soil; Shanyou 63; Wuyunjing 7; cadmium concentrations; cadmium distribution; cadmium uptake; genotype indica; genotype japonica; genotypes; plant growth stages; plant organs; pot soil experiments; rice cultivars; rice plants; soil cadmium treatment; Agriculture; Cadmium; Contamination; Ear; Soil;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5781521
Filename
5781521
Link To Document