干旱区生态环境知识资源中心(Arid): Effect of dark septate endophytes on plant performance of Artemisia ordosica and associated soil microbial functional group abundance under salt stress

Arid

DOI	10.1016/j.apsoil.2021.103998
	Effect of dark septate endophytes on plant performance of Artemisia ordosica and associated soil microbial functional group abundance under salt stress
	Hou, Lifeng; Li, Xia; He, Xueli; Zuo, Yiling; Zhang, Dongdong; Zhao, Lili
通讯作者	He, XL (corresponding author), Hebei Univ, Coll Life Sci, 180 Wusidong Rd, Baoding 071002, Peoples R China.
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2021
卷号	165
英文摘要	Fungal endophytes can improve plant tolerance to abiotic stress, however, the role of these plant-fungal interactions in desert species ecology and their management implications remain unclear. This study aimed to assess the effects of dark septate endophytes (DSE) on the performance of Artemisia ordosica and associated soil factors and microbial functional group abundance under salt stress. We investigated the effects of three DSE (Alternaria chlamydosporigena [AC], Paraphoma chrysanthemicola [PC] and Bipolaris sorokiniana [BS]) isolated from desert habitats on plant morphology, physiology and rhizosphere soil microhabitat of A. ordosica seedlings under different NaCl concentrations (0, 1, 2, 3 g NaCl/kg soil) in a growth chamber. The three DSE strains could colonize the roots of A. ordosica, and the symbiotic response with host plants depended on DSE species and NaCl concentration. The greatest benefits associated with DSE occurred under 1 g NaCl/kg soil. Specifically, AC promoted the accumulation of total biomass and enhanced superoxide dismutase (SOD) activity; PC promoted the accumulation of root biomass and increased indoleacetic acid (IAA) contents; and BS enhanced SOD activity and glutathione (GSH) and IAA contents. DSE reduced the root Na+ content. Interestingly, BS promoted grampositive (G +) under 1 g NaCl/kg soil and the abundance of arbuscular mycorrhizal (AM) fungi under 3 g NaCl/kg soil. PC positively affected fungi, AM fungi, gram-negative (G -) bacteria and actinomycetes under 2 g NaCl/kg soil, and increased AM fungi and G - bacteria under 3 g NaCl/kg soil, while AC increased the abundance of all examined microbes under 3 g NaCl/kg soil. Structural equation modeling (SEM) demonstrated that DSE inoculation significantly influenced the relationship between the growth of A. ordosica, soil factors and rhizospheric microbial functional groups under NaCl stress treatments. DSE enhanced the root development of host plants and altered the soil nutrient content and microbiota under different NaCl concentrations, possibly contributing to plant growth and ecological adaptability under saline environment. These results contribute to the understanding of ecological function of DSE inoculation in improving the adaptability of plants to salt stress and may be used to promote vegetation restoration in salinized desert areas.
英文关键词	Dark septate endophytes Artemisia ordosica Plant performance Soil microbial functional group abundance NaCl stress Symbiosis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000657601200006
WOS关键词	ARBUSCULAR MYCORRHIZAL FUNGI ; MICROFUNGAL ENDOPHYTES ; GROWTH ; TOLERANCE ; DROUGHT ; ROOTS ; SALINITY ; GLUTATHIONE ; LICORICE ; IMPROVE
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349514
作者单位	[Hou, Lifeng; Li, Xia; He, Xueli; Zuo, Yiling; Zhang, Dongdong; Zhao, Lili] Hebei Univ, Coll Life Sci, 180 Wusidong Rd, Baoding 071002, Peoples R China; [Hou, Lifeng; Li, Xia; He, Xueli; Zhao, Lili] Hebei Univ, Inst Life Sci & Green Dev, 180 Wusidong Rd, Baoding 071002, Peoples R China
推荐引用方式 GB/T 7714	Hou, Lifeng,Li, Xia,He, Xueli,et al. Effect of dark septate endophytes on plant performance of Artemisia ordosica and associated soil microbial functional group abundance under salt stress[J],2021,165.
APA	Hou, Lifeng,Li, Xia,He, Xueli,Zuo, Yiling,Zhang, Dongdong,&Zhao, Lili.(2021).Effect of dark septate endophytes on plant performance of Artemisia ordosica and associated soil microbial functional group abundance under salt stress.APPLIED SOIL ECOLOGY,165.
MLA	Hou, Lifeng,et al."Effect of dark septate endophytes on plant performance of Artemisia ordosica and associated soil microbial functional group abundance under salt stress".APPLIED SOIL ECOLOGY 165(2021).