Soil Rehabilitation Promotes Resilient Microbiome with Enriched Keystone Taxa than Agricultural Infestation in Barren Soils on the Loess Plateau

doi:10.3390/biology10121261

KIB OpenIR

	Soil Rehabilitation Promotes Resilient Microbiome with Enriched Keystone Taxa than Agricultural Infestation in Barren Soils on the Loess Plateau
	Liu,Dong ; Bhople,Parag ; Keiblinger,Katharina Maria ; Wang,Baorong ; An,Shaoshan ; Yang,Nan ; Chater,Caspar C. C.; Yu,Fuqiang
	2021
发表期刊	BIOLOGY-BASEL
ISSN	2079-7737
卷号	10 期号:12 页码:1261
摘要	Simple Summary Soil degradation accompanied by agricultural intensification is threatening the existence of dryland areas globally. However, improvement in soil quality in these areas through plant restoration has been greatly successful. Under this practice, soil microorganisms, especially keystone taxa, exert positive feedback on soil bio-functionality by recycling nutrients. Nevertheless, to date, it remains unclear as to how similar are the changes in these keystone taxa in dryland barren soils and agricultural soils, with comparison perspective. The earlier longer-term experiments in Loess soils have shown profound positive effects of plant restoration and establishment of more complex soil microbial networks in the presence of higher nutrient accumulation. The current work shows more keystone taxa that tend to exist in rehabilitated conditions when compared to their agricultural soil counterparts. Drylands provide crucial ecosystem and economic services across the globe. In barren drylands, keystone taxa drive microbial structure and functioning in soil environments. In the current study, the Chinese Loess plateau's agricultural (AL) and twenty-year-old rehabilitated lands (RL) provided a unique opportunity to investigate land-use-mediated effects on barren soil keystone bacterial and fungal taxa. Therefore, soils from eighteen sites were collected for metagenomic sequencing of bacteria specific 16S rRNA and fungi specific ITS2 regions, respectively, and to conduct molecular ecological networks and construct microbial OTU-based correlation matrices. In RL soils we found a more complex bacterial network represented by a higher number of nodes and links, with a link percentage of 77%, and a lower number of nodes and links for OTU-based fungal networks compared to the AL soils. A higher number of keystone taxa was observed in the RL (66) than in the AL (49) soils, and microbial network connectivity was positively influenced by soil total nitrogen and microbial biomass carbon contents. Our results indicate that plant restoration and the reduced human interventions in RL soils could guide the development of a better-connected microbial network and ensure sufficient nutrient circulation in barren soils on the Loess plateau.
关键词	Loess soils keystone taxa rehabilitated lands agricultural soils microbial network FUNCTIONAL DIVERSITY BACTERIAL COMMUNITY FUNGAL COMMUNITIES CARBON FRACTIONS ORGANIC-CARBON FOREST SOIL SP NOV. RESTORATION VEGETATION FERTILIZATION
DOI	10.3390/biology10121261
WOS记录号	WOS:000735946800001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73473
专题	中国科学院昆明植物研究所
作者单位	1.Northwest A&F Univ, Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Xianyang 712100, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Fungal Div & Green Dev, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 3.Univ Limerick, Dept Biol Sci, Fac Sci & Engn, Limerick V94 T9PX, Ireland 4.Univ Nat Resources & Life Sci, Inst Soil Res, Dept Forest & Soil Sci, A-1190 Vienna, Austria 5.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Peoples R China 6.Chater, Caspar C. C.] Royal Bot Gardens, Richmond TW9 3AE, England
推荐引用方式 GB/T 7714	Liu,Dong,Bhople,Parag,Keiblinger,Katharina Maria,et al. Soil Rehabilitation Promotes Resilient Microbiome with Enriched Keystone Taxa than Agricultural Infestation in Barren Soils on the Loess Plateau[J]. BIOLOGY-BASEL,2021,10(12):1261.
APA	Liu,Dong.,Bhople,Parag.,Keiblinger,Katharina Maria.,Wang,Baorong.,An,Shaoshan.,...&Yu,Fuqiang.(2021).Soil Rehabilitation Promotes Resilient Microbiome with Enriched Keystone Taxa than Agricultural Infestation in Barren Soils on the Loess Plateau.BIOLOGY-BASEL,10(12),1261.
MLA	Liu,Dong,et al."Soil Rehabilitation Promotes Resilient Microbiome with Enriched Keystone Taxa than Agricultural Infestation in Barren Soils on the Loess Plateau".BIOLOGY-BASEL 10.12(2021):1261.