Characterization and mechanism of copper biosorption by a highly copper-resistant fungal strain isolated from copper-polluted acidic orchard soil
文献类型：期刊论文
| 作者 | Tu C ; Liu Y; Wei J; Li LZ; Scheckel KG; Luo YM
|
| 刊名 | Environmental Science and Pollution Research
 |
| 出版日期 | 2018 |
| 卷号 | 25期号:25页码:24965-24974 |
| 关键词 | Copper-resistant fungus Acidic orchard soil Bioremediation Biosorption Cu(II) removal extent |
| ISSN号 | 0944-1344 |
| DOI | 10.1007/s11356-018-2563-4 |
| 产权排序 | [Tu, Chen ; Liu, Ying ; Wei, Jing ; Li, Lianzhen ; Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, 17 Chunhui Rd, Yantai 264003, Peoples R China ; [Scheckel, Kirk G.] US EPA, Natl Risk Management Res Lab, 5995 Ctr Hill Ave, Cincinnati, OH 45224 USA ; [Luo, Yongming] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, 71 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | In this paper, a highly copper-resistant fungal strain NT-1 was characterized by morphological, physiological, biochemical, and molecular biological techniques. Physiological response to Cu(II) stress, effects of environmental factors on Cu(II) biosorption, as well as mechanisms of Cu(II) biosorption by strain NT-1 were also investigated in this study. The results showed that NT-1 belonged to the genus Gibberella, which exhibited high tolerance to both acidic conditions and Cu(II) contamination in the environment. High concentrations of copper stress inhibited the growth of NT-1 to various degrees, leading to the decreases in mycelial biomass and colony diameter, as well as changes in morphology. Under optimal conditions (initial copper concentration: 200 mg L-1, temperature 28 degrees C, pH 5.0, and inoculum dose 10%), the maximum copper removal percentage from solution through culture of strain NT-1 within 5 days reached up to 45.5%. The biosorption of Cu(II) by NT-1 conformed to quasi-second-order kinetics and Langmuir isothermal adsorption model and was confirmed to be a monolayer adsorption process dominated by surface adsorption. The binding of NT-1 to Cu(II) was mainly achieved by forming polydentate complexes with carboxylate and amide group through covalent interactions and forming Cu-nitrogen-containing heterocyclic complexes via Cu(II)-pi interaction. The results of this study provide a new fungal resource and key parameters influencing growth and copper removal capacity of the strain for developing an effective bioremediation strategy for copper-contaminated acidic orchard soils. |
| WOS关键词 | HEAVY-METALS ; VINEYARD SOILS ; SACCHAROMYCES-CEREVISIAE ; EMULSIFIER PRODUCTION ; CURVULARIA-LUNATA ; REMOVAL ; CADMIUM ; BINDING ; LEAD ; ACCUMULATION |
| WOS研究方向 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000443012600036 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24139]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Luo YM |
| 推荐引用方式 GB/T 7714 | Tu C,Liu Y,Wei J,et al. Characterization and mechanism of copper biosorption by a highly copper-resistant fungal strain isolated from copper-polluted acidic orchard soil[J]. Environmental Science and Pollution Research,2018,25(25):24965-24974. |
| APA | Tu C,Liu Y,Wei J,Li LZ,Scheckel KG,&Luo YM.(2018).Characterization and mechanism of copper biosorption by a highly copper-resistant fungal strain isolated from copper-polluted acidic orchard soil.Environmental Science and Pollution Research,25(25),24965-24974. |
| MLA | Tu C,et al."Characterization and mechanism of copper biosorption by a highly copper-resistant fungal strain isolated from copper-polluted acidic orchard soil".Environmental Science and Pollution Research 25.25(2018):24965-24974. |
入库方式： OAI收割
来源：烟台海岸带研究所
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