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

Phytochelatin synthesis in Dunaliella salina induced by arsenite and arsenate under various 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, Jiangsu Prov Key Lab Marine Biol, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Food Qual & Safety, 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;Thiol compounds;Arsenate;Arsenite;Phosphate

期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This study investigated the dynamic variations in thiol compounds, including cysteine (Cys), glutathione (GSH), and phytochelatins (PCs), in Dunaliella salina samples exposed to arsenite [As(III)] and arsenate [As(V)] under various phosphate (PO43-) regimes. Our results showed that GSH was the major non-protein sulthydryl compound in D. saline cells. As(III) and As(V) induced PC syntheses in D. salina. PC2, PC3, and PC4 were all found in algal cells; the PC concentrations decreased gradually while exposed to As for 3 d. The synthesis of PC2-3 was significantly affected by As(III) and As(V) concentrations in the cultures. More PCs were detected in the As(V)-treated algal cells compared with the As(III) treatment. PC levels increased with As(III)/As(V) amount in the medium, but remained stable after 112 mu g L-1 As(V) exposure. In contrast, significant (p < 0.001) positive correlations were observed between PC synthesis and intracellular As(III) content or As accumulation in As(III)-treated algal cells during the 72-h exposure. PO43- had a significant influence on the PC synthesis in algal cells, irrespective of the As-treated species. Reductions in As uptake and subsequent PC synthesis by D. salina were observed as the PO43- concentration in the growth medium increased. L-Buthionine sulfoximine (BSO) differentially influenced PC synthesis in As-treated D. salina under different extracellular PO43- regimes. Overall, our data demonstrated that the production of GSH and PCs was affected by PO43- and that these thiols played an important role in As detoxification by D. salina.

  • 相关文献

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

[2]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.

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

[4]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

[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.

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