您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Bioaccumulation kinetics of arsenite and arsenate in Dunaliella salina under different phosphate regimes

文献类型： 外文期刊

作者： Wang, Ya 1 ; Zhang, Chunhua 3 ; Zheng, Yanheng 1 ; Ge, Ying 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Prov Key Lab Marine Biol, Nanjing 210095, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Food Safety & Nutr, Nanjing 210014, Jiangsu, Peoples R China

3.Nanjing Agr Univ, Coll Life Sci, Lab Ctr Life Sci, Demonstrat Lab Element & Life Sci Res, Nanjing 210095, Jiangsu, Peoples R China

关键词： Dunaliella salina;Phosphate;Uptake;Kinetics;Inorganic arsenic

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Dunaliella salina is a potential candidate for the phycoremediation of saline water contaminated with arsenic (As) due to its strong tolerance of salt and this toxic metalloid. However, the efficiency of As removal by this microalga varies under different phosphate regimes and the underlying mechanisms remain unresolved. Therefore, more detailed studies are needed to optimize As remediation using D. salina. Here, we investigated the dynamic processes of arsenite (As(III)) and arsenate (As(V)) uptake, transformation, and excretion by D. salina under phosphate-deficient (-P) and phosphate-enriched (+P) conditions through short-term and long-term uptake experiments. In the short-term uptake experiment, the absorption of As(III) or As(V) by D. salina was significantly suppressed by an increased phosphate supply. The V-max values for As(III) and As(V) decreased by 2- and 2.5-fold, respectively, under +P conditions, although the Michaelis constants (K-m ) were similar irrespective of the phosphate supply. Long-term uptake experiments also revealed enhanced As(III)/As(V) absorption and efflux rates and As(V) reduction by D. salina under -P conditions. This study quantified the kinetic processes of As metabolism in D. salina. More importantly, the results imply that the optimal As remediation by this microalga may be achieved by regulating the phosphate level in the culture.

  • 相关文献

[1]Phytochelatin synthesis in Dunaliella salina induced by arsenite and arsenate under various phosphate regimes. Wang, Ya,Zheng, Yanheng,Ge, Ying,Wang, Ya,Zhang, Chunhua.

[2]Effects of inorganic arsenic on growth and microcystin production of a Microcystis strain isolated from an algal bloom in Dianchi Lake, China. Ao HongYi,Song LiRong,Liu JianTong,Gong Yan,Hu DingJing,Zhang XingZhong,Liu BiBo,Wen Sheng,Wang Zhi. 2011

[3]A symbiotic bacterium differentially influences arsenate absorption and transformation in Dunaliella sauna under different phosphate regimes. Wang, Ya,Ge, Ying,Zhang, Chun Hua,Lin, Man Man.

[4]Copper tolerance of the biomass crops Elephant grass (Pennisetum purpureum Schumach), Vetiver grass (Vetiveria zizanioides) and the upland reed (Phragmites australis) in soil culture. Liu, Xinghua,Lou, Laiqing,Cai, Qingsheng,Shen, Yixing,Ding, Chenglong.

[5]Characterization and Application of Magnetic Biochars from Corn Stalk by Pyrolysis and Hydrothermal Treatment. . 2017

[6]Evidence for down-regulation of ethanolic fermentation and K+ effluxes in the coleoptile of rice seedlings during prolonged anoxia. Colmer, TD,Huang, SB,Greenway, H. 2001

[7]Intraspecific variation in potassium uptake and utilization among sweet potato (Ipomoea batatas L.) genotypes. Wang, Ji Dong,Wang, Ji Dong,Wang, Huoyan,Zhou, Jianmin,Chen, Xiaoqin,Wang, Ji Dong,Zhang, Yunchun.

[8]In Situ Field-Scale Remediation of Low Cd-Contaminated Paddy Soil Using Soil Amendments. Ai, Shao-ying,Wang, Yan-hong,Tang, Ming-deng,Li, Yi-Chun,Li, Lin-feng,Ai, Shao-ying,Wang, Yan-hong,Tang, Ming-deng,Li, Yi-Chun,Li, Lin-feng,Ai, Shao-ying,Wang, Yan-hong,Tang, Ming-deng,Li, Yi-Chun.

[9]Uptake and translocation of imidacloprid, thiamethoxam and difenoconazole in rice plants. Ge, Jing,Yan, Huangqian,Li, Yong,Chai, Yangyang,Liu, Xianjin,Yu, Xiangyang,Cui, Kai,Cheng, Jiangfeng,Ge, Jing,Li, Yong,Chai, Yangyang,Yu, Xiangyang.

[10]Dissipation and distribution of chlorpyrifos in selected vegetables through foliage and root uptake. Ge, Jing,Wang, Donglan,Zhang, Zhiyong,Liu, Xianjin,Yu, Xiangyang,Ge, Jing,Lu, Mengxiao,Wang, Donglan,Zhang, Zhiyong,Yu, Xiangyang.

[11]The adsorption process during inorganic phosphorus removal by cultured periphyton. Lu, Haiying,Yang, Linzhang,Shabbir, Sadaf,Wu, Yonghong,Yang, Linzhang,Shabbir, Sadaf.

[12]Kinetic Stability of Lutein in Freeze-Dried Sweet Corn Powder Stored under Different Conditions. Li, Da-Jing,Song, Jiang-Feng,Liu, Chun-Quan,Li, Da-Jing,Song, Jiang-Feng,Liu, Chun-Quan.

[13]Decomposition of dexamethasone by gamma irradiation: Kinetics, degradation mechanisms and impact on algae growth. Guo, Zhaobing,Guo, Anke,Rui, Maoling,Zhang, Haixiao,Zhu, Shengnan,Guo, Zhaobing,Guo, Anke,Rui, Maoling,Zhang, Haixiao,Zhu, Shengnan,Guo, Qingjun,Zhao, Yongfu.

[14]Radiation-induced reduction of chromium(VI) in aqueous solution by gamma-irradiation in a laboratory-scale. Yuan, SJ,Zheng, Z,Mu, YY,Yu, X,Zhao, YF. 2006

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台