气候变化领域集成服务门户(CCPortal): Different responses of absorptive roots and arbuscular mycorrhizal fungi to fertilization provide diverse nutrient acquisition strategies in Chinese fir

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DOI	10.1016/j.foreco.2018.10.055
	Different responses of absorptive roots and arbuscular mycorrhizal fungi to fertilization provide diverse nutrient acquisition strategies in Chinese fir
	Li L.; McCormack M.L.; Chen F.; Wang H.; Ma Z.; Guo D.
发表日期	2019
ISSN	0378-1127
起始页码	64
结束页码	72
卷号	433
英文摘要	Absorptive roots and arbuscular mycorrhizal fungi (AMF) constitute two related pathways for plant nutrient acquisition. However, if and how soil nutrient availability can regulate the integrated pattern of roots and AMF remain unclear. We analyzed the abundance and morphology of absorptive roots and AMF as well as the intraradical AMF community composition in response to four-year nitrogen (N) and phosphorus (P) additions in a Chinese fir (Cunninghamia lanceolata) plantation. Absorptive root biomass, length density and tissue density significantly decreased, and specific root length significantly increased with P addition. However, none of these root characteristics were significantly affected by N addition. In contrast, extraradical hyphal length density in the rhizosphere soil and the ratio of hyphal length density to mycorrhizal colonization rate significantly decreased with N addition, but remained unchanged under P addition while extraradical hyphal length density in the ingrowth mesh bags significantly decreased with both N and P additions. The relative abundance of Acaulosporaceae and Gigasporaceae increased and that of Glomeraceae decreased with P, while N addition did not significantly shift AMF community composition. Our findings indicate that the responses of absorptive roots and AMF to N addition in the Chinese fir plantation differ from their responses to P addition, suggesting diverse strategies for a single tree species to adjust to multiple soil nutrient conditions. © 2018 Elsevier B.V.
英文关键词	Absorptive root; Arbuscular mycorrhizal fungi; Chinese fir (Cunninghamia lanceolata); Extraradical hyphal length; Metabarcoding; Nutrient addition
语种	英语
scopus关键词	Nutrients; Soils; Absorptive root; Arbuscular mycorrhizal fungi; Cunninghamia lanceolata; Extraradical hyphal length; Metabarcoding; Nutrient addition; Fungi; absorption; arbuscular mycorrhiza; colonization; community composition; coniferous tree; fertilization (reproduction); genetic analysis; nutrient availability; nutrient enrichment; nutrient uptake; phosphorus; rhizosphere; root system; soil nitrogen; Abies; Chinese; Density; Fungi; Length; Nutrients; Roots; Soil; Acaulosporaceae; Cunninghamia lanceolata; Fungi; Gigasporaceae; Glomeraceae
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156304
作者单位	Center for Forest Ecosystem Studies and Qianyanzhou Ecological Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Department of Plant and Microbial Biology, University of Minnesota, St Paul, MN 55108, United States; Collaborative Innovation Center of Jiangxi Typical Tree Cultivation and Utilization, College of Forestry, Jiangxi Agricultural University, Nanchang, 330045, China; Center for Tree Science, The Morton Arboretum, Lisle, IL 60532, United States
推荐引用方式 GB/T 7714	Li L.,McCormack M.L.,Chen F.,et al. Different responses of absorptive roots and arbuscular mycorrhizal fungi to fertilization provide diverse nutrient acquisition strategies in Chinese fir[J],2019,433.
APA	Li L.,McCormack M.L.,Chen F.,Wang H.,Ma Z.,&Guo D..(2019).Different responses of absorptive roots and arbuscular mycorrhizal fungi to fertilization provide diverse nutrient acquisition strategies in Chinese fir.Forest Ecology and Management,433.
MLA	Li L.,et al."Different responses of absorptive roots and arbuscular mycorrhizal fungi to fertilization provide diverse nutrient acquisition strategies in Chinese fir".Forest Ecology and Management 433(2019).