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

A symbiotic bacterium differentially influences arsenate absorption and transformation in Dunaliella sauna under different phosphate regimes

文献类型： 外文期刊

作者： Wang, Ya 1 ; Zhang, Chun Hua 2 ; Lin, Man Man 3 ; Ge, Ying 1 ;

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

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

3.Jiangsu Acad Agr Sci, Inst Food Safety & Monitoring Technol, Nanjing 210014, Jiangsu, Peoples R China

关键词： Dunaliella saline;Symbiotic bacteria;Arsenate;Phosphate;Metabolism

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In this study, we investigated the effects of a symbiotic bacterium and phosphate (PO43-) nutrition on the toxicity and metabolism of arsenate (As(V)) in Dunaliella sauna. The bacterium was identified as Alteromonas macleodii based on analysis of its 16S rRNA gene sequence. When no As(V) was added, A. macleodii significantly enhanced the growth of D. salina, irrespective of PO43- nutrition levels, but this effect was reversed after As(V)+PO43- treatment (1.12 mg L-1) for 3 days. Arsenic (As) absorption by the non-axenic D. salina was significantly higher than that by its axenic counterpart during incubation with 1.12 mg L-1 PO43-. However, when the culture was treated with 0.112 mg L-1 PO43-, As(V) reduction and its subsequent arsenite (As(III)) excretion by non-axenic D. sauna were remarkably enhanced, which, in turn, contributed to lower As absorption in non-axenic algal cells from days 7 to 9. Moreover, dimethylarsinic acid was synthesized by D. sauna alone, and the rates of its production and excretion were accelerated when the PO43- concentration was 0.112 mg L-1. Our data demonstrate that A. macleodii strongly affected As toxicity, uptake, and speciation in D. salina, and these impacts were mediated by PO43- in the cultures. (C) 2016 Elsevier B.V. All, rights reserved.

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

[3]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

[4]Bioaccumulation kinetics of arsenite and arsenate in Dunaliella salina under different phosphate regimes. Wang, Ya,Zheng, Yanheng,Ge, Ying,Wang, Ya,Zhang, Chunhua.

[5]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.

[6]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.

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