Cadmium fate and tolerance in rice cultivars

文献类型： 外文期刊

第一作者： Zhang, Jie

作者： Zhang, Jie;Sun, Wanchun;Li, Zhaojun;Liang, Yongchao;Zhang, Jie;Song, Alin;Liang, Yongchao

作者机构：

关键词： cadmium;rice;subcellular distribution;binding form

期刊名称：AGRONOMY FOR SUSTAINABLE DEVELOPMENT （ 影响因子：5.832； 五年影响因子：9.354 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Cadmium (Cd) is present in all soils, usually as a trace constituent, but it can reach higher levels in agricultural soils. Cd can then be absorbed by plants and become a potential risk to human health. Once taken up by a plant, there are mechanisms for heavy metal detoxification in the plant. Here, a cadmium-tolerant and a cadmium-sensitive rice cultivars were grown hydroponically to investigate the effects of cadmium (Cd) applied at low levels on uptake and transport, subcellular distribution and binding forms of Cd in rice plants. Our results showed that increasing the Cd treatment from 1.0 mu M to 5,0 mu M Cd increased the shoot Cd content by 55% in the cadmium-tolerant cultivar, and by 108% in the cadmium-sensitive cultivar. For the cadmium-tolerant cultivar, increasing Cd treatment from 1.0 mu M to 5.0 mu M increased the root Cd content by 116%, whereas for the cadmium-sensitive cultivar, increasing Cd treatment from 1.0 mu M to 5.0 mu M increased the root Cd content by 80%. Further, the ratio of Cd accumulation in shoots over roots decreased from 0.19 to 0.14 in the cadmium-tolerant cultivar, while it increased from 0.20 to 0.26 in the cadmium-sensitive cultivar, showing that the transportation ability for Cd was different between the two tested rice cultivars. At the higher Cd level of 5.0 uM, most of the Cd in the plants was localized in cell walls and vacuoles in both cultivars, whereas small portions of Cd were distributed in the cytoplasm, suggesting that the important metabolic and physiological processes were not impaired under Cd stress. Furthermore, the major portions of Cd in the cells were combined with organic acids, proteins and polysaccharide, and were consequently detoxified. The difference in the distribution of cadmium inrice plants resulted in the difference in Cd tolerance between the two rice cultivars used. It can be concluded that the retention of Cd in root cell walls, compartmentation of Cd into vacuoles and the suppressed transportation of Cd from roots to shoots are the most important mechanisms involved in the detoxification of Cd in rice plants.

分类号： S

  • 相关文献

[1]Subcellular distribution and chemical forms of cadmium in the edible seaweed, Porphyra yezoensis. Zhao, Yanfang,Shang, Derong,Ning, Jinsong,Zhai, Yuxiu,Sheng, Xiaofeng,Ding, Haiyan,Wu, Jifa. 2015

[2]Subcellular Cd accumulation characteristic in root cell wall of rice cultivars with different sensitivities to Cd stress in soil. Liu Bin,Chen Shi-bao,Li Ning,Zheng Han,Jin Ke,Pang Huan-cheng,Ma Yi-bing,Chen Lie. 2016

[3]Exogenous GR24 Alleviates Cadmium Toxicity by Reducing Cadmium Uptake in Switchgrass (Panicum virgatum) Seedlings. Tai, Zhenglan,Yin, Xinqiang,Fang, Zhigang,Lou, Laiqing,Cai, Qingsheng,Fang, Zhigang,Shi, Gaoling. 2017

[4]Subcellular distribution of trace elements in kidney of a mother-fetus pair of Dall's porpoises (Phocoenoides dalli). Yang, Jian,Yang, Jian,Miyazaki, Nobuyuki,Kunito, Takashi,Anan, Yasumi,Tanabe, Shinsuke.

[5]SUBCELLULAR DISTRIBUTION AND CHEMICAL FORMS OF CADMIUM IN LEAVES OF THE HYPERACCUMULATOR PLANT Solanum nigrum L.. Guo, Zhi,Ao, Yan-song,Guo, Zhi,Chen, Liu-gen,Yuan, Hai-yan,Yuan, Hai-yan.

[6]Distribution Characteristics of Soil Cadmium in Different Textured Paddy Soil Profiles and Its Relevance with Cadmium Uptake by Crops. Wang Zheng-yin,Qin Yu-sheng,Zhan Shao-jun,Yu Hua,Tu Shi-hua. 2013

[7]Assessment of Homogeneity and Minimum Sample Mass for Cadmium Analysis in Powdered Certified Reference Materials and Real Rice Samples by Solid Sampling Electrothermal Vaporization Atomic Fluorescence Spectrometry. Mao, Xuefei,Huang, Yatao,Zhang, Lihua,Tang, Xiaoyan,Zhou, Jian,Qian, Yongzhong,Wang, Min,Mao, Xuefei,Huang, Yatao,Zhang, Lihua,Tang, Xiaoyan,Zhou, Jian,Qian, Yongzhong,Wang, Min,Liu, Jixin,Feng, Li.

[8]Increasing CO2 differentially affects essential and non-essential amino acid concentration of rice grains grown in cadmium-contaminated soils. Wu, Huibin,Wu, Huibin,Song, Zhengguo,Wang, Xiao,Liu, Zhongqi,Tang, Shirong.

[9]Heavy metal contaminations in soil-rice system: source identification in relation to a sulfur-rich coal burning power plant in Northern Guangdong Province, China. Wang, Xiangqin,Liu Chuanping,Li, Fangbai,Xu, Xianghua,Lv, Yahui,Zeng, Xiaoduo.

[10]Effect of water management on cadmium and arsenic accumulation by rice (Oryza sativa L.) with different metal accumulation capacities. Hu, Pengjie,Li, Zhu,Yuan, Cheng,Huang, Jiexue,Huang, Yujuan,Luo, Yongming,Wu, Longhua,Ouyang, Younan,Luo, Yongming,Christie, Peter. 2013

[11]Can liming reduce cadmium (Cd) accumulation in rice (Oryza sativa) in slightly acidic soils? A contradictory dynamic equilibrium between Cd uptake capacity of roots and Cd immobilisation in soils. Yang, Yongjie,Chen, Jiangmin,Huang, Qina,Tang, Shaoqing,Hu, Peisong,Shao, Guosheng,Chen, Jiangmin,Wang, Jianlong. 2018

[12]Comparative proteomic analysis provides new insights into cadmium accumulation in rice grain under cadmium stress. Xue, Dawei,Deng, Xiangxiong,Zhang, Xiaoqin,Xu, Xiangbin,Qian, Qian,Xue, Dawei,Hu, Jiang,Zeng, Dali,Guo, Longbiao,Qian, Qian,Jiang, Hua,Wang, Hua. 2014

[13]Excessive nitrate enhances cadmium (Cd) uptake by up-regulating the expression of OsIRT1 in rice (Oryza sativa). Yang, Yongjie,Fu, Guanfu,Chen, Tingting,Tao, Longxing,Xiong, Jie,Chen, Ruijie,Xiong, Jie,Chen, Ruijie.

[14]Distribution of selenium and cadmium in soil-rice system of selenium-rich area in Hainan, China. Wang, Dengfeng,Wei, Zhiyuan,Qi, Zhiping,Tang, Shumei. 2014

[15]Iron nutrition affects cadmium accumulation and toxicity in rice plants. Shao, Guosheng,Chen, Mingxue,Wang, Weixia,Mon, Renxiang,Zhang, Guoping.

[16]Measuring the damage of heavy metal cadmium in rice seedlings by SRAP analysis combined with physiological and biochemical parameters. Zhang, Xiaoqin,Chen, Huinan,Lu, Wenyi,Pan, Jiangjie,Qian, Qian,Xue, Dawei,Jiang, Hua,Qian, Qian.

[17]Robust method for the analysis of phytochelatins in rice by high-performance liquid chromatography coupled with electrospray tandem mass spectrometry based on polymeric column materials. Yu, Shasha,Bian, Yingfang,Zhou, Rong,Mou, Renxiang,Chen, Mingxue,Cao, Zhaoyun.

[18]Effect of silicon fertilizers on cadmium in rice (Oryza sativa) tissue at tillering stage. Ji, Xionghui,Liu, Saihua,Juan, Huang,Bocharnikova, Elena A.,Matichenkov, Vladimir V..

[19]Role of salicylic acid in alleviating oxidative damage in rice roots (Oryza sativa) subjected to cadmium stress. Guo, B.,Liang, Y. C.,Zhu, Y. G.,Zhao, F. J..

[20]Periphyton growth reduces cadmium but enhances arsenic accumulation in rice (Oryza sativa) seedlings from contaminated soil. Shi, Gao Ling,Ma, Hong Xiang,Lu, Hai Ying,Liu, Jun Zhuo,Wu, Yong Hong,Lou, Lai Qing,Tang, Xian Jin.

作者其他论文 更多>>

微信小程序