Cadmium accumulation in and tolerance of rice (Oryza sativa L.) varieties with different rates of radial oxygen loss

M. Y. Wang; A. K. Chen; M. H. Wong; R. L. Qiu; H. Cheng; Z. H. Ye

doi:10.1016/j.envpol.2011.02.025

Cadmium accumulation in and tolerance of rice (Oryza sativa L.) varieties with different rates of radial oxygen loss

M. Y. Wang, A. K. Chen, M. H. Wong, R. L. Qiu, H. Cheng, Z. H. Ye

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

119 Citations (Scopus)

Abstract

Cadmium (Cd) uptake and tolerance were investigated among 20 rice cultivars based on a field experiment (1.2 mg Cd kg^-1 in soil) and a soil pot trial (control, 100 mg Cd kg^-1), and rates of radial oxygen loss (ROL) were measured under a deoxygenated solution. Significant differences were found among the cultivars in: (1) brown rice Cd concentrations (0.11-0.29 mg kg^-1) in a field soil, (2) grain Cd tolerance (34-113%) and concentrations (2.1-6.5 mg kg^-1) in a pot trial, and (3) rates of ROL (15-31 mmol O₂ kg^-1 root d.w. h^-1). Target hazard quotients were calculated for the field experiment to assess potential Cd risk. Significant negative relationships were found between rates of ROL and concentrations of Cd in brown rice or straw under field and greenhouse conditions, indicating that rice cultivars with higher rates of ROL had higher capacities for limiting the transfer of Cd to rice and straw.

Original language	English
Pages (from-to)	1730-1736
Number of pages	7
Journal	Environmental Pollution
Volume	159
Issue number	6
DOIs	https://doi.org/10.1016/j.envpol.2011.02.025
Publication status	Published - Jun 2011

Scopus Subject Areas

Toxicology
Pollution
Health, Toxicology and Mutagenesis

User-Defined Keywords

Cadmium
Radial oxygen loss (ROL)
Rice (Oryza sativa L.)
Tolerance
Uptake

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10.1016/j.envpol.2011.02.025

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@article{5981157990864dddb697c9b0c16e78f4,

title = "Cadmium accumulation in and tolerance of rice (Oryza sativa L.) varieties with different rates of radial oxygen loss",

abstract = "Cadmium (Cd) uptake and tolerance were investigated among 20 rice cultivars based on a field experiment (1.2 mg Cd kg-1 in soil) and a soil pot trial (control, 100 mg Cd kg-1), and rates of radial oxygen loss (ROL) were measured under a deoxygenated solution. Significant differences were found among the cultivars in: (1) brown rice Cd concentrations (0.11-0.29 mg kg-1) in a field soil, (2) grain Cd tolerance (34-113%) and concentrations (2.1-6.5 mg kg-1) in a pot trial, and (3) rates of ROL (15-31 mmol O2 kg-1 root d.w. h-1). Target hazard quotients were calculated for the field experiment to assess potential Cd risk. Significant negative relationships were found between rates of ROL and concentrations of Cd in brown rice or straw under field and greenhouse conditions, indicating that rice cultivars with higher rates of ROL had higher capacities for limiting the transfer of Cd to rice and straw.",

keywords = "Cadmium, Radial oxygen loss (ROL), Rice (Oryza sativa L.), Tolerance, Uptake",

author = "Wang, {M. Y.} and Chen, {A. K.} and Wong, {M. H.} and Qiu, {R. L.} and H. Cheng and Ye, {Z. H.}",

note = "Funding Information: We sincerely thank Prof. AJM Baker (The University of Melbourne, Australia and University of Sheffield, UK) for improving this manuscript. We also sincerely thank Prof. HQ Zhou (Guangdong Rice Research Institute) for providing the rice seeds; and XY Peng, MY Xiong, X Wang for their technical assistance. We are also grateful to the National Natural Science Foundation of China ( 30770417 ), the Natural Science Foundation of Guangdong ( 07003650 ), the NSFC-Guangdong United Foundation ( U0833004 ), Ministry of Environmental Protection of China ( E-2007-06 )and Environment Protection Bureau of Yunnan Province (2007[262]) for financial support.",

year = "2011",

month = jun,

doi = "10.1016/j.envpol.2011.02.025",

language = "English",

volume = "159",

pages = "1730--1736",

journal = "Environmental Pollution",

issn = "0269-7491",

publisher = "Elsevier Ltd.",

number = "6",

}

TY - JOUR

T1 - Cadmium accumulation in and tolerance of rice (Oryza sativa L.) varieties with different rates of radial oxygen loss

AU - Wang, M. Y.

AU - Chen, A. K.

AU - Wong, M. H.

AU - Qiu, R. L.

AU - Cheng, H.

AU - Ye, Z. H.

N1 - Funding Information: We sincerely thank Prof. AJM Baker (The University of Melbourne, Australia and University of Sheffield, UK) for improving this manuscript. We also sincerely thank Prof. HQ Zhou (Guangdong Rice Research Institute) for providing the rice seeds; and XY Peng, MY Xiong, X Wang for their technical assistance. We are also grateful to the National Natural Science Foundation of China ( 30770417 ), the Natural Science Foundation of Guangdong ( 07003650 ), the NSFC-Guangdong United Foundation ( U0833004 ), Ministry of Environmental Protection of China ( E-2007-06 )and Environment Protection Bureau of Yunnan Province (2007[262]) for financial support.

PY - 2011/6

Y1 - 2011/6

N2 - Cadmium (Cd) uptake and tolerance were investigated among 20 rice cultivars based on a field experiment (1.2 mg Cd kg-1 in soil) and a soil pot trial (control, 100 mg Cd kg-1), and rates of radial oxygen loss (ROL) were measured under a deoxygenated solution. Significant differences were found among the cultivars in: (1) brown rice Cd concentrations (0.11-0.29 mg kg-1) in a field soil, (2) grain Cd tolerance (34-113%) and concentrations (2.1-6.5 mg kg-1) in a pot trial, and (3) rates of ROL (15-31 mmol O2 kg-1 root d.w. h-1). Target hazard quotients were calculated for the field experiment to assess potential Cd risk. Significant negative relationships were found between rates of ROL and concentrations of Cd in brown rice or straw under field and greenhouse conditions, indicating that rice cultivars with higher rates of ROL had higher capacities for limiting the transfer of Cd to rice and straw.

AB - Cadmium (Cd) uptake and tolerance were investigated among 20 rice cultivars based on a field experiment (1.2 mg Cd kg-1 in soil) and a soil pot trial (control, 100 mg Cd kg-1), and rates of radial oxygen loss (ROL) were measured under a deoxygenated solution. Significant differences were found among the cultivars in: (1) brown rice Cd concentrations (0.11-0.29 mg kg-1) in a field soil, (2) grain Cd tolerance (34-113%) and concentrations (2.1-6.5 mg kg-1) in a pot trial, and (3) rates of ROL (15-31 mmol O2 kg-1 root d.w. h-1). Target hazard quotients were calculated for the field experiment to assess potential Cd risk. Significant negative relationships were found between rates of ROL and concentrations of Cd in brown rice or straw under field and greenhouse conditions, indicating that rice cultivars with higher rates of ROL had higher capacities for limiting the transfer of Cd to rice and straw.

KW - Cadmium

KW - Radial oxygen loss (ROL)

KW - Rice (Oryza sativa L.)

KW - Tolerance

KW - Uptake

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SN - 0269-7491

VL - 159

SP - 1730

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JO - Environmental Pollution

JF - Environmental Pollution

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ER -

Cadmium accumulation in and tolerance of rice (Oryza sativa L.) varieties with different rates of radial oxygen loss

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