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Intrinsic enzyme-like activity of magnetite particles is enhanced by cultivation with Trichoderma guizhouense

文献类型：期刊论文

作者Chi, Zhi-Lai6; Zhao, Xiang-Yang6; Chen, Ya-Ling5,6; Hao, Jia-Long4; Yu, Guang-Hui5,6; Goodman, Bernard A.3; Gadd, Geoffrey Michael1,2
刊名ENVIRONMENTAL MICROBIOLOGY
出版日期2020-09-06
页码15
ISSN号1462-2912
DOI10.1111/1462-2920.15193
英文摘要Fungal-mineral interactions can produce large amounts of biogenic nano-size (similar to 1-100 nm) minerals, yet their influence on fungal physiology and growth remains largely unexplored. UsingTrichoderma guizhouenseNJAU4742 and magnetite (Mt) as a model fungus and mineral system, we have shown for the first time that biogenic Mt nanoparticles formed during fungal-mineral cultivation exhibit intrinsic peroxidase-like activity. Specifically, the average peroxidase-like activity of Mt nanoparticles after 72 h cultivation was similar to 2.4 times higher than that of the original Mt. Evidence from high resolution X-ray photoelectron spectroscopy analyses indicated that the unique properties of magnetite nanoparticles largely stemmed from their high proportion of surface non-lattice oxygen, through occupying surface oxygen-vacant sites, rather than Fe redox chemistry, which challenges conventional Fenton reaction theories that assume iron to be the sole redox-active centre. Nanoscale secondary ion mass spectrometry with a resolution down to 50 nm demonstrated that a thin (< 1 mu m) oxygen-film was present on the surface of fungal hyphae. Furthermore, synchrotron radiation-based micro-FTIR spectra revealed that surface oxygen groups corresponded mainly to organic OH, mineral OH and carbonyl groups. Together, these findings highlight an important, but unrecognized, catalytic activity of mineral nanoparticles produced by fungal-mineral interactions and contribute substantially to our understanding of mineral nanoparticles in natural ecosystems.
WOS关键词FENTON-LIKE REACTIONS ; SOIL CARBON ; HYDROXYL RADICALS ; OXYGEN VACANCY ; XPS SPECTRA ; IRON ; MINERALS ; SURFACE ; NANOPARTICLES ; DEGRADATION
资助项目National Natural Science Foundation of China[41977271] ; Geomicrobiology Group from the Natural Environment Research Council, UK[NE/M010910/1] ; Geomicrobiology Group from the Natural Environment Research Council, UK[NE/M 011275/1]
WOS研究方向Microbiology
语种英语
WOS记录号WOS:000566922300001
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geomicrobiology Group from the Natural Environment Research Council, UK ; Geomicrobiology Group from the Natural Environment Research Council, UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geomicrobiology Group from the Natural Environment Research Council, UK ; Geomicrobiology Group from the Natural Environment Research Council, UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geomicrobiology Group from the Natural Environment Research Council, UK ; Geomicrobiology Group from the Natural Environment Research Council, UK ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geomicrobiology Group from the Natural Environment Research Council, UK ; Geomicrobiology Group from the Natural Environment Research Council, UK
源URL[http://ir.iggcas.ac.cn/handle/132A11/98233]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Yu, Guang-Hui
作者单位1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing Key Lab Oil & Gas Pollut Control, Coll Chem Engn & Environm, Beijing 102249, Peoples R China
2.Univ Dundee, Sch Life Sci, Geomicrobiol Grp, Dundee DD1 5EH, Scotland
3.Guangxi Univ, Coll Phys Sci & Technol, Nanning 530004, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
5.Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
6.Nanjing Agr Univ, Coll Resource & Environm Sci, Jiangsu Prov Key Lab Organ Solid Waste Utilizat, Nanjing 210095, Peoples R China
推荐引用方式
GB/T 7714		 Chi, Zhi-Lai,Zhao, Xiang-Yang,Chen, Ya-Ling,et al. Intrinsic enzyme-like activity of magnetite particles is enhanced by cultivation with Trichoderma guizhouense[J]. ENVIRONMENTAL MICROBIOLOGY,2020:15.
APA Chi, Zhi-Lai.,Zhao, Xiang-Yang.,Chen, Ya-Ling.,Hao, Jia-Long.,Yu, Guang-Hui.,...&Gadd, Geoffrey Michael.(2020).Intrinsic enzyme-like activity of magnetite particles is enhanced by cultivation with Trichoderma guizhouense.ENVIRONMENTAL MICROBIOLOGY,15.
MLA Chi, Zhi-Lai,et al."Intrinsic enzyme-like activity of magnetite particles is enhanced by cultivation with Trichoderma guizhouense".ENVIRONMENTAL MICROBIOLOGY (2020):15.

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来源：地质与地球物理研究所

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