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Ninety-year-, but not single, application of phosphorus fertilizer has a major impact on arbuscular mycorrhizal fungal communities

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Title: Ninety-year-, but not single, application of phosphorus fertilizer has a major impact on arbuscular mycorrhizal fungal communities
Authors: Cheng, Ying Browse this author
Ishimoto, Keiko Browse this author
Kuriyama, Yuko Browse this author
Osaki, Mitsuru Browse this author →KAKEN DB
Ezawa, Tatsuhiro Browse this author →KAKEN DB
Keywords: Arbuscular mycorrhizal fungi
Chemical fertilizer
Community structure
Long-term field experiment
Issue Date: Apr-2013
Publisher: Springer
Journal Title: Plant and Soil
Volume: 365
Issue: 1-2
Start Page: 397
End Page: 407
Publisher DOI: 10.1007/s11104-012-1398-x
Abstract: Background and aims Arbuscular mycorrhizal (AM) fungi play a significant role in P nutrition of crops in agriculture, but P accumulation in the soil, e.g., application of P-fertilizer, generally reduces AM fungal colonization. The impact of long-term application of chemical fertilizer on AM fungal communities was investigated with respect to the time scale. Methods Soils were collected from four plots with different fertilizer management in the long-term experimental field established in 1914. Lotus japonicus was grown in the soils in a greenhouse, while Glycine max was grown in the plots in the field. DNA was extracted from their roots, and the diversity and community compositions were analyzed based on occurrence of the AM fungal phylotypes defined by sequence similarity in the LSU rDNA. Results The 90-year-application of N and K in the absence of P increased AM fungal diversity and resulted in formation of a distinctive fungal community compared with those in the other treatments. This effect was not cancelled by single application of P. Whereas the impact of balanced application of N, P, and K was ambiguous. Conclusion These observations suggest that the presence/absence of P-fertilizer has a major impact on AM fungal communities, but the action may appear only on a long time scale. Electronic supplementary material The online version of this article (doi:10.1007/s11104-012-1398-x) contains supplementary material, which is available to authorized users.
Rights: The original publication is available at
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 江澤 辰広

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