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Soil micro-food web interactions and rhizosphere priming effect

文献类型：期刊论文

作者Kou, Xinchang2,3; Su, Tongqing1,2; Ma, Ningning2; Li, Qi2; Wang, Peng2; Wu, Zhengfang2,3; Liang, Wenju2; Cheng, Weixin2,4
刊名PLANT AND SOIL
出版日期2018-11-01
卷号432期号:1-2页码:129-142
关键词Soil micro-food web Rhizosphere priming effect Microbial PLFA Nematode community
ISSN号0032-079X
DOI10.1007/s11104-018-3782-7
英文摘要Background and aimsThe rhizosphere priming effect (RPE) is the stimulation or suppression of soil organic matter decomposition by living roots and associated rhizosphere organisms. The RPE is pivotal in regulating biogeochemical cycles in terrestrial ecosystems. However, biological mechanisms, especially soil micro-food web interactions, behind the RPE remain largely unknown.MethodsWe quantified the RPE of soybean and cottonwood at three growth stages using a natural C-13 tracer method, measured soil microbial and nematode community composition, and investigated their relations with the RPE.ResultsThe magnitude of the RPE varied widely at different growth stages. Soybean produced a greater cumulative RPE than cottonwood. The plant species effect was also observed in the bacterial PLFA with higher values found in the soybean treatment. Mantel test analysis suggested that the variations in microbial community were closely related with the RPE, soil and plant characteristics. The nematode community affected the RPE indirectly through altering the structure of the microbial community.ConclusionsWe demonstrated that the RPE was connected with interactions of soil micro-food webs. This connection indicates that soil micro-food web interactions in the rhizosphere may either regulate microbial turnover and/or microbial community composition, subsequently modulating the RPE.
资助项目National Key Research and Development Plan of China[2017YFD0200602]
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000447871600009
出版者SPRINGER
源URL[http://210.72.129.5/handle/321005/123331]  
专题中国科学院沈阳应用生态研究所
通讯作者Li, Qi; Wang, Peng
作者单位1.Guangxi Teachers Educ Univ, Minist Educ, Key Lab Environm Change & Resources Use Beibu Gul, Nanning 530001, Peoples R China
2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, POB 417, Shenyang 110016, Liaoning, Peoples R China
3.Northeast Normal Univ, Sch Geog Sci, Changchun 130024, Jilin, Peoples R China
4.Univ Calif Santa Cruz, Environm Studies Dept, Santa Cruz, CA 95064 USA
推荐引用方式
GB/T 7714		 Kou, Xinchang,Su, Tongqing,Ma, Ningning,et al. Soil micro-food web interactions and rhizosphere priming effect[J]. PLANT AND SOIL,2018,432(1-2):129-142.
APA Kou, Xinchang.,Su, Tongqing.,Ma, Ningning.,Li, Qi.,Wang, Peng.,...&Cheng, Weixin.(2018).Soil micro-food web interactions and rhizosphere priming effect.PLANT AND SOIL,432(1-2),129-142.
MLA Kou, Xinchang,et al."Soil micro-food web interactions and rhizosphere priming effect".PLANT AND SOIL 432.1-2(2018):129-142.

入库方式： OAI收割

来源：沈阳应用生态研究所

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