Comparative responses to silicon and selenium in relation to antioxidant enzyme system and the glutathione-ascorbate cycle in flowering Chinese cabbage (Brassica campestris L. ssp chinensis var. utilis) under cadmium stress

文献类型： 外文期刊

第一作者： Wu, Zhichao

作者： Wu, Zhichao;Liu, Shuai;Zhao, Jie;Wang, Fuhua;Du, Yingqiong;Zou, Sumin;Li, Hanmin;Wen, Dian;Huang, Yongdong;Wu, Zhichao;Liu, Shuai;Zhao, Jie;Wang, Fuhua;Du, Yingqiong;Zou, Sumin;Li, Hanmin;Wen, Dian;Huang, Yongdong;Wu, Zhichao;Liu, Shuai;Zhao, Jie;Wang, Fuhua;Du, Yingqiong;Zou, Sumin;Li, Hanmin;Wen, Dian;Huang, Yongdong;Liu, Shuai;Zou, Sumin;Li, Hanmin;Liu, Shuai;Zou, Sumin;Li, Hanmin

作者机构：

关键词： Silicon and selenium;Cadmium;Antioxidant systems;Stressed response

期刊名称：ENVIRONMENTAL AND EXPERIMENTAL BOTANY （ 影响因子：5.545； 五年影响因子：5.99 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Silicon (Si) and selenium (Se) are generally considered as contributing elements for plant resistance to abiotic stresses, especially for those in heavy-metal stressed environments. However, the mechanisms underlying the different roles of Si and Se in mitigating cadmium (Cd) stress in flowering Chinese cabbage (Brassica campestris L. ssp. chinensis var. utilis) are still poorly understood. Here, we investigated the comparative responses to Si and Se in relation to antioxidant enzyme system and the glutathione-ascorbate cycle in flowering Chinese cabbage plants under Cd stress. Addition of Si and/or Se at equivalent concentrations alleviated Cd toxicity as demonstrated by increasing plant tissue (shoots and roots) biomass and reducing plant tissue (leaves and roots) concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2) in plants exposed to high Cd stress. Additionally, in comparison with the high Cd-alone treatment, the application of Si and/or Se significantly increased the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX), while no differences in the size of these effects between Si and Se were observed at equal concentrations, suggesting that these three antioxidant enzymes were not the key factors involved in differences of Cd detoxification between Si and Se. Furthermore, the single addition of Se or in combined with Si markedly stimulated the efficiency of the GSH-AsA cycle by increasing the concentrations of glutathione (GSH) and ascorbate (AsA) as well as the activities of glutathione reductase (GR) and dehydroascorbate reductase (DHAR) in plant tissues (leaves and roots), especially at high dose, while little changes were observed in the Si-alone treatment, indicating that Se has the greater ability of increasing the efficiency of GSH-AsA cycle rather than of Si exposed to Cd stress. Overall, our results reveal that Se-mediated alleviation of Cd toxicity is due to increasing antioxidant enzyme activities and the GSH-AsA cycle efficiency. However, Si mitigation may involve other mechanisms apart from increasing antioxidant enzyme activities. (C) 2016 Elsevier B.V. All rights reserved.

分类号： Q94

  • 相关文献

[1]Comparative responses to silicon and selenium in relation to cadmium uptake, compartmentation in roots, and xylem transport in flowering Chinese cabbage (Brassica campestris L. ssp chinensis var. utilis) under cadmium stress. Wu, Zhichao,Wang, Fuhua,Liu, Shuai,Du, Yingqiong,Li, Furong,Du, Ruiying,Wen, Dian,Zhao, Jie,Wu, Zhichao,Wang, Fuhua,Liu, Shuai,Du, Yingqiong,Li, Furong,Du, Ruiying,Wen, Dian,Zhao, Jie,Wu, Zhichao,Wang, Fuhua,Liu, Shuai,Du, Yingqiong,Li, Furong,Du, Ruiying,Wen, Dian,Zhao, Jie,Liu, Shuai.

[2]Selenium uptake, speciation and stressed response of Nicotiana tabacum L.. Han, Dan,Xiong, Shuanglian,Tu, Shuxin,Xie, Zhijian,Han, Dan,Xiong, Shuanglian,Tu, Shuxin,Li, Xihong,Chen, Zhenguo,Li, Jinping,Xie, Zhijian.

[3]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

[4]Cadmium accumulation characteristics of the winter farmland weeds Cardamine hirsuta Linn. and Gnaphalium affine D. Don. Liao, Ming'an,Mei, Luoyin,Shi, Jun,Liu, Qihua. 2014

[5]INTERCROPPING DIFFERENT VARIETIES OF RADISH CAN INCREASE CADMIUM ACCUMULATION IN RADISH. Liao, Ming'an,Mei, Luoyin,Liu, Qihua,Shi, Jun,Sun, Jinlong.

[6]Cadmium Accumulation in soil and Celery from a Long-Term Manure Applied Field Experiment. Sun, Qinping,Li, Jijin,Liu, Bensheng,Gao, Lijuan,Xu, Junxiang,Zou, Guoyuan,Liu, Baocun. 2013

[7]Oxidative Stress-Mediated Cytotoxicity of Cadmium in Chicken Splenic Lymphocytes. Li, Jin-Long,Tang, Zhao-Xin,Li, Jin-Long,Li, Shu,Xu, Shi-Wen,Li, Hui-Xin,Wang, Xiao-Long. 2010

[8]Effect of Dietary Cadmium on the Activity of Glutathione S-Transferase and Carboxylesterase in Different Developmental Stages of the Oxya chinensis (Orthoptera: Acridoidea). Zhang, Y. P.,Song, D. N.,Wu, H. H.,Yang, H. M.,Zhang, J. Z.,Ma, E. B.,Guo, Y. P.,Zhang, Y. P.,Li, L. J.. 2014

[9]Soil threshold values of total and available cadmium for vegetable growing based on field data in Guangdong province, South China. Sun, Fang Fang,Wang, Fu Hua,Wang, Xu,He, Wu,Wen, Dian,Wang, Qi Feng,Liu, Xiang Xiang,Sun, Fang Fang,Wang, Fu Hua,Wang, Xu,He, Wu,Wen, Dian,Wang, Qi Feng,Liu, Xiang Xiang. 2013

[10]Characterization of a Type 1 Metallothionein Gene from the Stresses-Tolerant Plant Ziziphus jujuba. Yang, Mingxia,Cao, Qiufen,Chen, Mingchang,Yang, Mingxia,Dong, Zhigang,Zhang, Fan,Wang, Fan,Cao, Qiufen,Chen, Mingchang. 2015

[11]Protective Effects of Quercetin on Cadmium-induced Cytotoxicity in Primary Cultures of Rat Proximal Tubular Cells. Wang Lin,Liu Gang,Wang Zhen Yong,Lin Shu Qian,He Yuan Long. 2013

[12]Antioxidative systems, metal ion homeostasis and cadmium distribution in Iris lactea exposed to cadmium stress. Guo, Qiang,Meng, Lin,Zhang, Ya-Nan,Mao, Pei-Chun,Tian, Xiao-Xia,Li, Shan-Shan,Zhang, Lin. 2017

[13]Removal of cadmium from contaminated Lentinula edodes by optimized complexation and coagulation. Wang, Yi,Wang, Chen,Cheng, Wei,Guo, Peng,Bian, Yinbing. 2017

[14]Cadmium and lead contamination in japonica rice grains and its variation among the different locations in southeast China. Cheng, FM,Zhao, NC,Xu, HM,Li, Y,Zhang, WF,Zhu, ZW,Chen, MX. 2006

[15]Cadmium Disrupts the Balance between Hydrogen Peroxide and Superoxide Radical by Regulating Endogenous Hydrogen Sulfide in the Root Tip of Brassica rapa. Lv, Wenjing,Shi, Zhiqi,Chen, Jian,Lv, Wenjing,Yang, Lifei,Lv, Wenjing,Shi, Zhiqi,Chen, Jian,Xu, Cunfa,Shao, Jinsong,Xian, Ming. 2017

[16]A Label-Free Aptamer-Based Fluorescent Assay for Cadmium Detection. Luan, Yunxia,Lu, Anxiang,Chen, Jiayi,Fu, Hailong,Xu, Li,Luan, Yunxia,Lu, Anxiang,Chen, Jiayi,Fu, Hailong,Xu, Li. 2016

[17]Comparison on cellular mechanisms of iron and cadmium accumulation in rice: prospects for cultivating Fe-rich but Cd-free rice. Gao, Lei,Chang, Jiadong,Chen, Ruijie,Li, Hubo,Lu, Hongfei,Xiong, Jie,Gao, Lei,Chang, Jiadong,Chen, Ruijie,Li, Hubo,Lu, Hongfei,Xiong, Jie,Tao, Longxing. 2016

[18]Speciation Analysis of Cadmium in Marine Bivalves by Size Exclusion Chromatography-High Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry. Zhao Yan-Fang,Shang De-Rong,Ning Jin-Song,Zhai Yu-Xiu. 2012

[19]Cadmium Accumulation in Vegetable Plantation Land Soils under Protected Cultivation: A Case Study. Li, Lian-Fang,Zeng Xi-Bai,Bai Ling-Yu,Mei Xu-Rong,Yang Jia-Bo,Hu Liu-Jie. 2009

[20]Using iron fertilizer to control Cd accumulation in rice plants: A new promising technology. Shao GuoSheng,Chen MingXue,Wang DanYing,Xu ChunMei,Mou RenXiang,Cao ZhaoYun,Zhang Xiufu. 2008

作者其他论文 更多>>

微信小程序