Seasonal variation in the response of arbuscular mycorrhizal fungi to grazing intensity

doi:10.1007/s00572-020-00974-8

	Seasonal variation in the response of arbuscular mycorrhizal fungi to grazing intensity
	Faghihinia, Maede ; Zou, Yi ; Bai, Yongfei2 ; Marrs, Rob ; Staddon, Philip L.
	2020
发表期刊	MYCORRHIZA
ISSN	0940-6360
卷号	30 期号:5 页码:635-646
摘要	Despite existing evidence of pronounced seasonality in arbuscular mycorrhizal (AM) fungal communities, little is known about the ecology of AM fungi in response to grazing intensity in different seasons. Here, we assessed AM fungal abundance, represented by soil hyphal length density (HLD), mycorrhizal root colonization intensity (MI), and arbuscule intensity (AI) throughout three seasons (spring, summer, autumn) in a farm-scale field experiment in typical, grazed steppe vegetation in northern China. Seven levels of field-manipulated, grazing intensities had been maintained for over 13 years within two topographies, flat and slope. We also measured soil nutrients and carbon content throughout the growing season to investigate whether seasonal variation in AM fungal abundance was related to seasonal shifts in soil resource availability along the grazing gradient. We further examined the association between AM fungal metrics in the different grazing treatments through the growing season. Our results showed a pronounced seasonal shift in HLD but there was no clear seasonality in MI and AI. HLD was significantly negatively related to grazing intensity over the course of the growing season from spring to autumn. However, MI and AI were related negatively to grazing intensity only in spring. In addition, differential responses of AM fungal abundance to grazing intensity at the two topographical sites were detected. No strong evidence was found for associations between AM fungal abundance and soil resource availability. Moreover, AM fungal internal and external abundance were correlated positively under the different grazing intensities throughout the growing season. Overall, our study suggests that external AM fungal structures in soil were more responsive to seasonal variation and grazing than internal structures in roots. The findings also suggest that early grazing may be detrimental to AM fungal root colonization of newly emerged plants.
关键词	Spring grazing Topography Soil resource availability Grazing management External hyphae Seasonal variation
学科领域	Plant Sciences ; Mycology
DOI	10.1007/s00572-020-00974-8
收录类别	SCI
语种	英语
WOS关键词	COMMUNITY COMPOSITION ; GRASSLAND ; HYPHAE ; COLONIZATION ; MANAGEMENT ; DIVERSITY ; ABUNDANCE ; TURNOVER ; MYCELIUM ; CARBON
WOS研究方向	Plant Sciences ; Mycology
WOS记录号	WOS:000546821500001
出版者	SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	1432-1890
资助机构	XJTLU Research Development Fund [RDF-15-02-13]
作者邮箱	yi.zou@xjtlu.edu.cn
作品OA属性	Green Accepted
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21686
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Liverpool, Sch Environm Sci, Liverpool L69 3GP, Merseyside, England 2.Faghihinia, Maede; Zou, Yi; Staddon, Philip L.] Xian Jiaotong Liverpool Univ, Dept Hlth & Environm Sci, Suzhou 215123, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Staddon, Philip L.] Univ Gloucestershire, Countryside & Community Res Inst, Cheltenham GL50 4AZ, Glos, England 5.Staddon, Philip L.] Royal Agr Univ, Sch Agr Food & Environm, Cheltenham GL7 6JS, Glos, England
推荐引用方式 GB/T 7714	Faghihinia, Maede,Zou, Yi,Bai, Yongfei,et al. Seasonal variation in the response of arbuscular mycorrhizal fungi to grazing intensity[J]. MYCORRHIZA,2020,30(5):635-646.
APA	Faghihinia, Maede,Zou, Yi,Bai, Yongfei,Marrs, Rob,&Staddon, Philip L..(2020).Seasonal variation in the response of arbuscular mycorrhizal fungi to grazing intensity.MYCORRHIZA,30(5),635-646.
MLA	Faghihinia, Maede,et al."Seasonal variation in the response of arbuscular mycorrhizal fungi to grazing intensity".MYCORRHIZA 30.5(2020):635-646.

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