干旱区生态环境知识资源中心(Arid): Colonization by dark septate endophytes improves the growth ofHedysarum scopariumunder multiple inoculum levels

Arid

DOI	10.1007/s13199-020-00713-9
	Colonization by dark septate endophytes improves the growth ofHedysarum scopariumunder multiple inoculum levels
	Zuo, Yiling; Su, Fang; He, Xueli; Li, Min
通讯作者	He, XL
来源期刊	SYMBIOSIS
ISSN	0334-5114
EISSN	1878-7665
出版年	2020
卷号	82 期号:3 页码:201-214
英文摘要	Despite the abundance of studies on the interactions between dark septate endophytes (DSEs) and host plants, little is known about the effects elicited by different DSE species and inoculum levels, especially in desert plants. Here, we examined the colonization status and species composition of DSEs in roots ofHedysarum scoparium, a xerophyte plant endemic to arid desert, northwest China. Subsequently, we assessed the performance of host plants inoculated withParaphoma chlamydocopiosaandAlternaria doliconidiumunder different inoculum levels. DSE colonization was characterized by spatial and interannual variability, and hyphal colonization was dominant (17.2%-76.7%).Alternaria doliconidium,Edenia gomezpompae,Paraphoma pye,Subramaniula flavipilaandHerpotrichia striatisporaare reported here in desert ecosystems for the first time. BothP. chlamydocopiosaandA. doliconidiumestablished positive symbiosis withH. scoparium, however, the growth-promoting effects differed significantly depending on the DSE species and inoculum level (P < 0.05). Specifically,P. chlamydocopiosapromoted plant height and shoot biomass, whereasA. doliconidiumenhanced stem branching and total biomass. The greatest benefits associated with DSEs occurred at 20-mL inoculum level. Variance partitioning analysis indicated inoculum level explained 13.7% of variation in plant growth, while substrate properties and enzymatic activity explained respectively 38.0% and 12.2% of variation in DSE-host associations. Total root length and root surface area were significantly correlated with substrate pH and phosphorus, whereas root diameter was affected by organic carbon and phosphatase. These data provide basis for evaluating the potential application of DSEs for vegetation restoration in arid ecosystems.
英文关键词	Root endophytes Spatial distribution Promoting effects Symbiosis Desert ecosystem
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000568461400001
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; AMMOPIPTANTHUS-MONGOLICUS ; PHIALOCEPHALA-FORTINII ; HEDYSARUM-SCOPARIUM ; COMMUNITY STRUCTURE ; SPATIAL DYNAMICS ; ROOT ENDOPHYTES ; DROUGHT STRESS ; ABIOTIC STRESS ; PLANT-GROWTH
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326195
作者单位	[Zuo, Yiling; Su, Fang; He, Xueli; Li, Min] Hebei Univ, Coll Life Sci, 180 Wusidong Rd, Baoding 071002, Peoples R China
推荐引用方式 GB/T 7714	Zuo, Yiling,Su, Fang,He, Xueli,et al. Colonization by dark septate endophytes improves the growth ofHedysarum scopariumunder multiple inoculum levels[J],2020,82(3):201-214.
APA	Zuo, Yiling,Su, Fang,He, Xueli,&Li, Min.(2020).Colonization by dark septate endophytes improves the growth ofHedysarum scopariumunder multiple inoculum levels.SYMBIOSIS,82(3),201-214.
MLA	Zuo, Yiling,et al."Colonization by dark septate endophytes improves the growth ofHedysarum scopariumunder multiple inoculum levels".SYMBIOSIS 82.3(2020):201-214.