Tu C
; Liu Y; Wei J; Li LZ; Scheckel KG; Luo YM发表期刊Environmental Science and Pollution Research
ISSN0944-1344
2018
卷号25期号:25页码:24965-24974
关键词Copper-resistant fungusAcidic orchard soilBioremediationBiosorptionCu(II) removal extent
研究领域Environmental Sciences & Ecology
DOI10.1007/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
作者部门海岸带环境过程实验室
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.
文章类型Article
收录类别SCI
语种英语
关键词[WOS]HEAVY-METALS; VINEYARD SOILS; SACCHAROMYCES-CEREVISIAE; EMULSIFIER PRODUCTION; CURVULARIA-LUNATA; REMOVAL; CADMIUM; BINDING; LEAD; ACCUMULATION
研究领域[WOS]Environmental Sciences
WOS记录号WOS:000443012600036
引用统计被引频次：14[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24139
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
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 7714Tu 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.
APATu 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.
MLATu 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.
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