Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?
Cheng, H; Wang, MY; Wong, MH; Ye, ZH; chenghao@scsio.ac.cn; morywang@126.com; mhwong@hkbu.edu.hk; lssyzhh@mail.sysu.edu.cn
2014
发表期刊PLANT AND SOIL
ISSN0032-079X
卷号375期号:41641页码:137-148
摘要Metal (e.g. Cd and Pb) pollution in agricultural soils and crops have aroused considerable attention in recent years. This study aimed to evaluate the effects of ROL and Fe plaque on Cd and Pb accumulation and distribution in the rice plant. A rhizobag experiment was employed to investigate the correlations among radial oxygen loss (ROL), Fe plaque formation and uptake and distribution of Cd and Pb in 25 rice cultivars. Large differences between the cultivars were found in rates of ROL (1.55 to 6.88 mmol O-2 kg(-1) root d.w. h(-1)), Fe plaque formation (Fe: 6,117-48,167 mg kg(-1); Mn: 127-1,089 mg kg(-1)), heavy metals in shoot (Cd: 0.13-0.35 mg kg(-1); Pb: 4.8-8.1 mg kg(-1)) and root tissues (Cd: 1.1-3.5 mg kg(-1); Pb: 45-199 mg kg(-1)), and in Fe plaque (Cd: 0.54-2.6 mg kg(-1); Pb: 102-708 mg kg(-1)). Rates of ROL were positively correlated with Fe plaque formation and metal deposition on root surfaces, but negatively correlated with metal transfer factors of root/plaque and distributions in shoot and root tissues. ROL-induced Fe plaque promotes metal deposition on to root surfaces, leading to a limitation of Cd and Pb transfer and distribution in rice plant tissues.
部门归属[Cheng, Hao ; Wang, Maoyi ; Ye, Zhihong] Sun Yat Sen Univ, Key Lab Biodivers Dynam & Conservat, Guangdong Higher Educ Inst, Sch Life Sci, Guangzhou 510006, Guangdong, Peoples R China ; [Cheng, Hao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China ; [Cheng, Hao] Chinese Acad Sci, South China Sea Inst Oceanol, Daya Bay Marine Biol Res Stn, Guangzhou 510301, Guangdong, Peoples R China ; [Wong, Ming Hung] Hong Kong Baptist Univ, Croucher Inst Environm Sci, Hong Kong, Hong Kong, Peoples R China
关键词Cadmium Iron Plaque Lead Radial Oxygen Loss Rice
学科领域Agriculture ; Plant Sciences
资助者National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] ; National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] ; National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] ; National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009]
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收录类别sci
资助项目LTO
资助者National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] ; National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] ; National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] ; National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009]
WOS记录号WOS:000331204500011
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10575
专题热带海洋环境国家重点实验室(LTO)
通讯作者chenghao@scsio.ac.cn; morywang@126.com; mhwong@hkbu.edu.hk; lssyzhh@mail.sysu.edu.cn
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Cheng, H,Wang, MY,Wong, MH,et al. Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?[J]. PLANT AND SOIL,2014,375(41641):137-148.
APA Cheng, H.,Wang, MY.,Wong, MH.,Ye, ZH.,chenghao@scsio.ac.cn.,...&lssyzhh@mail.sysu.edu.cn.(2014).Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?.PLANT AND SOIL,375(41641),137-148.
MLA Cheng, H,et al."Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?".PLANT AND SOIL 375.41641(2014):137-148.
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