Arbuscular mycorrhiza fungi and related soil microbial activity drive carbon mineralization in the maize rhizosphere
文献类型： 外文期刊
作者： Xu, Hongwen 1 ; Shao, Hongbo 2 ; Lu, Yan 1 ;
作者机构： 1.Huaiyin Normal Univ, Sch Urban & Environm Sci, Huaian 223300, Peoples R China
2.Jiangsu Acad Agr Sci, Salt Soil Agr Ctr, Key Lab Agr Environm Lower Reaches Yangtze River, Inst Agr Resources & Environm, Nanjing 210014, Jiangsu, Peoples R China
3.Yancheng Teachers Univ, Jiangsu Synthet Innovat Ctr Coastal Bioagr, Jiangsu Key Lab Bioresources Saline Soils, Yancheng 224002, Peoples R China
4.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266000, Shandong, Peoples R China
关键词： Arbuscular mycorrhiza fungi; Soil microbial activity; Carbon mineralization; Maize rhizosphere; Ecoengineering
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）
ISSN： 0147-6513
年卷期： 2019 年 182 卷
页码：
收录情况： SCI
摘要： This research is aimed to investigate the effect of arbuscular mycorrhiza (AM) fungi on soil microbial activity and carbon mineralization in the maize rhizosphere under potted condition. Glomus etunicatum was used for our experiment. Results showed that AM symbiosis increased the levels of microorganism in the maize rhizosphere soil, and enhanced activity of soil microbial enzymes. After inoculating AM fungi, the contents of dissolved organic carbon (DOC), microbial biomass carbon (MBC) and readily oxidizable carbon (ROC) in the rhizosphere soil of maize increased with varying degrees. We obtained strong evidence that higher contents of MBC, DOC, ROC, superior number of microbes and stronger soil enzyme activities could be responsible for the higher rate of carbon mineralization in AM fungi treatment. AM fungi inoculation was confirmed to be effective to improve the soil quality for larger-scale ecoengineering.
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