Differential responses of arbuscular mycorrhizal fungal communities to mineral and organic fertilization
文献类型： 外文期刊
作者： Liu, Jia 1 ; Zhang, Jie 2 ; Li, Daming 3 ; Xu, Changxu 1 ; Xiang, Xingjia 4 ;
作者机构： 1.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang, Jiangxi, Peoples R China
2.Nanchang Inst Technol, Coll Water Conservancy & Ecol Engn, Nanchang, Jiangxi, Peoples R China
3.Jiangxi Inst Red Soil, Jinxian, Peoples R China
4.Anhui Univ, Sch Resources & Environm Engn, Anhui Prov Key Lab Wetland Ecol Protect & Restora, Hefei 230601, Anhui, Peoples R China
关键词： agricultural ecosystem; arbuscular mycorrhizal fungi; feedback; fertilization; sequencing
期刊名称：MICROBIOLOGYOPEN （ 影响因子：3.139； 五年影响因子：3.503 ）
ISSN： 2045-8827
年卷期：
页码：
收录情况： SCI
摘要： Agricultural fertilization is used extensively to increase soil fertility and maximize crop yield. Despite numerous studies on how fertilization influences plant and bacterial communities, little is known about the roles of long-term application of different fertilizers in shaping arbuscular mycorrhizal fungal (AMF) community structures in a comparative manner. The response of AMF community to 28 years of chemical and organic fertilization was investigated using the Illumina Mi-Seq platform. Soil AMF community composition showed significant and differential responses to long-term fertilization. Changes in available phosphorus (AP) content were the primary driver shaping AMF community composition. Chemical fertilization significantly decreased AMF alpha-diversity, whereas the alpha-diversity remained equally high in organic fertilization treatment as in the control. In addition, soil AMF alpha-diversity was negatively and positively correlated with elevated soil nutrient level following chemical and organic fertilization, respectively. Plants could directly acquire sufficient nutrients without their AMF partners after chemical fertilization, while plants might rely on AMF to facilitate the transformation of organic matter following organic fertilization, indicating that chemical fertilization might reduce the reliance of plants on AMF symbioses while organic fertilization strengthened the symbiotic relationship between plants and their AMF partners in agricultural ecosystems. This study demonstrated that AMF communities responded differently to long-term chemical and organic fertilization, indicating that organic fertilization might activate belowground AMF function to maintain soil nutrients and benefit the sustainable development of agriculture.
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