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Ammonia oxidizers and nitrite-oxidizing bacteria respond differently to long-term manure application in four paddy soils of south of China

文献类型: 外文期刊

作者: Liu, Haiyang 1 ; Li, Jia 1 ; Zhao, Yan 1 ; Xie, Kexin 1 ; Tang, Xianjin 1 ; Wang, Shaoxian 2 ; Li, Zhongpei 3 ; Liao, Yul 1 ;

作者机构: 1.Zhejiang Univ, Coll Environm & Nat Resource Sci, Zhejiang Prov Key Lab Subtrop Soil & Plant Nutr, Hangzhou, Zhejiang, Peoples R China

2.Jiangxi Acad Agr Sci, Inst Soil & Fertilizer & Resource & Environm, Nanchang, Jiangxi, Peoples R China

3.Chinese Acad Sci, Inst Soil Sci, Nanjing, Jiangsu, Peoples R China

4.Soil & Fertilizer Inst Hunan Prov, Changsha, Hunan, Peoples R China

关键词: Nitrification; Ammonia oxidizing bacteria; Ammonia oxidizing archaea; Nitrite oxidizing bacteria; Manure

期刊名称:SCIENCE OF THE TOTAL ENVIRONMENT ( 影响因子:7.963; 五年影响因子:7.842 )

ISSN: 0048-9697

年卷期: 2018 年 633 卷

页码:

收录情况: SCI

摘要: Nitrification plays an important role in the soil nitrogen (N) cycle, and fertilizer application may influence soil nitrifiers' abundance and composition. However, the effect of long-term manure application in paddy soils on nitrifying populations is poorly understood. We chose four long-term manure experimental fields in the south of China to study how the abundance and community structure of nitrifiers would change in response to long-termmanure application using quantitative PCR and Miseq sequencing analyses. Our results showed that manure application significantly increased ammonia oxidizing archaea (AOA) abundance at the ChangSha (CS) and Nan-Chang (NC) sites, while the abundance of ammonia oxidizing bacteria (AOB) represented 4.8-and 12.8-fold increases at the JiaXing (JX) and YingTan (YT) sites, respectively. Miseq sequencing of 16S rRNA genes indicated that manure application altered the community structure of nitrifying populations, especially at the NC and YT sites. The application of manure significantly changed AOA and nitrite oxidizing bacteria (NOB) community structures but not those of AOB, suggesting that AOA and NOB may be more sensitive to manures. Variation partitioning analysis (VPA) and redundancy analysis (RDA) indicated that soil pH, TN, NO3--N and water content were the main factors in shaping nitrifying communities. These findings suggest that nitrifiers respond diversely to manure application, and soil physiochemical properties play an important role in determining nitrifiers' abundance and communities with long-term manure addition. (C) 2018 Elsevier B.V. All rights reserved.

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