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

doi:10.1007/s11104-022-05375-8

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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
	Sun, Yuanfeng ; Li, Yawen 3; Lu, Xiaoming ; Wang, Yang ; Bai, Yongfei 1
刊名	PLANT AND SOIL
	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
DOI	10.1007/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
电子版国际标准刊号	1573-5036
出版地	DORDRECHT
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
出版者	SPRINGER
WOS记录号	WOS:000777875400002
资助机构	National Natural Science Foundation of China [31630010, 31320103916]
内容类型	期刊论文
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.