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Contrasting effects of arbuscular mycorrhizal fungi on nitrogen uptake in Leymus chinensis and Cleistogenes squarrosa grasses, dominants of the Inner Mongolian steppe

文献类型：期刊论文

作者Sun, Yuanfeng; Li, Yawen3; Lu, Xiaoming; Wang, Yang; Bai, Yongfei1
刊名PLANT AND SOIL
出版日期2022
卷号475期号:1-2页码:395-410
关键词Microcosm Root and hyphal compartment (RHC) Hyphal compartment (HC) Arbuscular mycorrhizal fungi N-uptake (15) N labelling Photosynthetic type Host plant dependence
ISSN号0032-079X
DOI10.1007/s11104-022-05375-8
文献子类Article
英文摘要Background and aims The acquisition of nitrogen (N) captured via arbuscular mycorrhizal (AM) hyphal networks is a major pathway in the N uptake of host plants. However, the relative contribution of arbuscular mycorrhizal fungi (AMF) to N uptake in different species has not been well quantified. Methods Two dominant plant species in semiarid steppes, i.e., Leymus chinensis (a C-3 grass) and Cleistogenes squarrosa (a C-4 grass), were selected. We conducted a greenhouse manipulation experiment that involved specifically designed microcosms combined with (15) N labelling techniques to quantify the relative contribution of AMF to plant N uptake under high and low levels of available soil N. Results AMF contributed more to N uptake in L. chinensis than that in C. squarrosa. For L. chinensis, AM symbiosis suppressed plant growth under low soil N conditions but improved plant growth under high soil N conditions, contributing c. 23% and 20% of the total plant N, respectively. For C. squarrosa, AM symbiosis consistently inhibited plant growth under both low and high soil N conditions, contributing only 9% and 7% of the plant N uptake, respectively. Conclusions AMF contributed significantly to N uptake in the C-3 grass of L. chinensis but not in the C-4 grass of C. squarrosa. Our findings indicate that AMF may modify the relative fitness of the two dominant grass species on the Mongolian Plateau through their influence on plant growth and N uptake in the face of increasing global N deposition.
学科主题Agronomy ; Plant Sciences ; Soil Science
出版地DORDRECHT
电子版国际标准刊号1573-5036
WOS关键词PHOSPHORUS LIMITATION ; EXTERNAL HYPHAE ; PLANT NUTRITION ; GROWTH ; ROOTS ; DIVERSITY ; ACCUMULATION ; EVOLUTIONARY ; ACQUISITION ; DEPENDENCE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000777875400002
出版者SPRINGER
资助机构National Natural Science Foundation of China [31630010, 31320103916]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28607]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Chinese Acad Sci, Coll Life Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Xiangshan, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Yuanfeng,Li, Yawen,Lu, Xiaoming,et al. Contrasting effects of arbuscular mycorrhizal fungi on nitrogen uptake in Leymus chinensis and Cleistogenes squarrosa grasses, dominants of the Inner Mongolian steppe[J]. PLANT AND SOIL,2022,475(1-2):395-410.
APA Sun, Yuanfeng,Li, Yawen,Lu, Xiaoming,Wang, Yang,&Bai, Yongfei.(2022).Contrasting effects of arbuscular mycorrhizal fungi on nitrogen uptake in Leymus chinensis and Cleistogenes squarrosa grasses, dominants of the Inner Mongolian steppe.PLANT AND SOIL,475(1-2),395-410.
MLA Sun, Yuanfeng,et al."Contrasting effects of arbuscular mycorrhizal fungi on nitrogen uptake in Leymus chinensis and Cleistogenes squarrosa grasses, dominants of the Inner Mongolian steppe".PLANT AND SOIL 475.1-2(2022):395-410.

入库方式： OAI收割

来源：植物研究所

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