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[1]CAO Kun,JING Ruiyong,ZHOU Ying,et al.Effects of Pyrazosulfuron-ethyl on Soil Fungal Community Structure and Enzyme Activity[J].Research of Soil and Water Conservation,2016,23(02):73-77.

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Effects of Pyrazosulfuron-ethyl on Soil Fungal Community Structure and Enzyme Activity

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 02 Page number: 73-77 Column: Public date: 2016-04-28

Title:: Effects of Pyrazosulfuron-ethyl on Soil Fungal Community Structure and Enzyme Activity

Author(s):: CAO Kun^1,2, JING Ruiyong¹, ZHOU Ying¹, WANG Guanghua², GUO Yongxia¹; 1. Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China;
2. Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China

Keywords:: microbial ecology; diversity of fungi; soil enzyme; pyrazosulfuron-ethyl

CLC:: S154.3

DOI:: -

Abstract:: Effects of different concentrations of pyrazosulfuron-ethyl (0.4, 4, 40 mg/kg) on fungal community structure and soil enzyme activity were investigated by PCR-DGGE and colorimetric methods. The results showed that pyrazosulfuron-ethyl can promote the activities of soil dehydrogenase and polyphenol oxide, inhibit the activity of glucanase and have no influence on fungal community structure at 7 th day At 14 th day, the activity of dehydrogenase decreased and activity of polyphenol oxide increased, and the diversity index of fungal community increased gradually with increase of pyrazosulfuron-ethyl concentration. At 21 th day, the activities of dehydrogenase and polyphenol oxide become smaller, but the activity of glucanase recover to the level of control and diversity index of fungal community structure increases gradually with increase of the pyrazosulfuron-ethyl concentration. The above results offered the data support for entirely investigating the effect of pyrazosulfuron-ethyl on soil micro-ecology environment.

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