干旱区生态环境知识资源中心(Arid): Species composition and colonization of dark septate endophytes are affected by host plant species and soil depth in the Mu Us sandland, northwest China

Arid

DOI	10.1016/j.funeco.2019.01.001
	Species composition and colonization of dark septate endophytes are affected by host plant species and soil depth in the Mu Us sandland, northwest China
	Hou, Lifeng; He, Xueli; Li, Xia; Wang, Shaojie; Zhao, Lili
通讯作者	He, Xueli
来源期刊	FUNGAL ECOLOGY
ISSN	1754-5048
EISSN	1878-0083
出版年	2019
卷号	39 页码:276-284
英文摘要	Investigations into the edaphic associations, host affiliations and soil depth of dark septate endophytes (DSE) in arid desert environments can help explain their spatial distribution and the response mechanisms in desert ecosystems. Soils were sampled to a depth of 50 cm in the rhizospheres of Psammochloa villosa, Hedysarum laeve and Artemisia ordosica in the Mu Us sandland of northwest China in July 2015. The plant species and soil depth significantly influenced the distribution and colonization of DSE. Hyphal and total root colonization were significantly higher under P. villosa than the others in the 0-20 cm layer. The maximum colonization of P. villosa and H. laeve occurred in the 10-20 cm and 20-30 cm soil layers, respectively, while 30-40 cm soil layer under A. ordosica. Of twelve DSE species isolated from the roots of these plants, Phoma radicina and Bipolaris zeae were reported in desert ecosystems for the first time. Hyphal colonization was significantly and positively correlated with soil total nitrogen (TN) and significantly and negatively correlated with the soil carbon/nitrogen (C/N) ratio. Microsclerotial colonization was significantly and positively correlated with soil organic carbon (SOC), and total colonization was significantly and positively correlated with soil TN and total phosphorus (TP) and significantly and negatively correlated with soil C/N. Variation of DSE colonization was mostly attributed to effects of plant species. We concluded that the species composition and colonization of the DSE fungi were influenced by the plant species, soil depth and soil nutrient availability in this desert ecosystem. This research provides a basis for further understanding the ecological adaptability of DSE and their roles in promoting vegetation restoration and reducing desertification in arid ecosystems. (C) 2019 Elsevier Ltd and British Mycological Society. All rights reserved.
英文关键词	Dark septate endophytes Soil depth pattern Edaphic variables Desert plants Mu Us sandland
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000468717200027
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; COMMUNITY STRUCTURE ; SPATIAL DYNAMICS ; AMMOPIPTANTHUS-MONGOLICUS ; MICROFUNGAL ENDOPHYTES ; ROOT ENDOPHYTES ; DIVERSITY ; CARBON ; DESERT ; TOLERANCE
WOS类目	Ecology ; Mycology
WOS研究方向	Environmental Sciences & Ecology ; Mycology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215860
作者单位	Hebei Univ, Coll Life Sci, 180 Wusidong Rd, Baoding 071002, Peoples R China
推荐引用方式 GB/T 7714	Hou, Lifeng,He, Xueli,Li, Xia,et al. Species composition and colonization of dark septate endophytes are affected by host plant species and soil depth in the Mu Us sandland, northwest China[J],2019,39:276-284.
APA	Hou, Lifeng,He, Xueli,Li, Xia,Wang, Shaojie,&Zhao, Lili.(2019).Species composition and colonization of dark septate endophytes are affected by host plant species and soil depth in the Mu Us sandland, northwest China.FUNGAL ECOLOGY,39,276-284.
MLA	Hou, Lifeng,et al."Species composition and colonization of dark septate endophytes are affected by host plant species and soil depth in the Mu Us sandland, northwest China".FUNGAL ECOLOGY 39(2019):276-284.