Effects of Atrazine Residues on the Diversity of AM Fungi in Black Soil Farmland

doi:10.11924/j.issn.1000-6850.2014-2357

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (2): 174-180.doi: 10.11924/j.issn.1000-6850.2014-2357

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Effects of Atrazine Residues on the Diversity of AM Fungi in Black Soil Farmland

Wang Chen¹, Song Fuqiang¹, Kong Xiangshi², Li Jize¹

(¹Key Laboratory of Microbiology, College of Life Science, Heilongjiang University, Harbin 150080;²School of Life Science, Nanjing University, Nanjing 210093)

Received:2014-08-28 Revised:2015-01-15 Accepted:2014-09-29 Online:2015-03-19 Published:2015-03-19

Abstract

Abstract: In order to reveal the effects of atrazine residues on the diversity of AM fungi in black soil farmland, wet-sieving and decanting-sucrose centrifugation method was employed to isolate AM spores from black soil farmland of Harbin, Qiqihar and Heihe where atrazine was applied continuously for many years, and then the isolated spores were identified. Totally we isolated 47 AM fungal species belonging to 4 genera, including 16 species that belonged to Acaulospora, 27 to Glomus, 3 to Scutellospora, and 1 to Gigaspora. Besides, we found that low concentration of atrazine residues showed no significant effects on AM fungi spore densities and species richness, while when the concentration of atrazine residues was higher than 0.28 mg/kg, AM spore density and species richness of AM fungi significantly and negatively correlated with the residues level of atrazine. In addition, Acaulospora and Glomus were found to be the dominant genus of the three regions.

Wang Chen,Song Fuqiang,Kong Xiangshi and Li Jize. Effects of Atrazine Residues on the Diversity of AM Fungi in Black Soil Farmland[J]. Chinese Agricultural Science Bulletin, 2015, 31(2): 174-180.

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Effects of Atrazine Residues on the Diversity of AM Fungi in Black Soil Farmland

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