干旱区生态环境知识资源中心(Arid): Plants use rhizosphere metabolites to regulate soil microbial diversity

Arid

DOI	10.1002/ldr.4107
	Plants use rhizosphere metabolites to regulate soil microbial diversity
	Bi, Boyuan; Wang, Kun; Zhang, He; Wang, Yu; Fei, Hongyan; Pan, Ruopeng; Han, Fengpeng
通讯作者	Han, FP (corresponding author), Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
英文摘要	Specific metabolites and secondary metabolites produced by plants and soil microbes play key roles in regulating organismal behaviour. At present, the variations in soil microbial communities mediated by plant rhizosphere metabolism in arid environments are still poorly understood. Therefore, we investigated the rhizosphere soil (RS) and bulk soil (BS) associated with five plant species adapted to the climate in the Mu Us Sandy Land and analysed the chemical composition of soil metabolites, microbial community composition and diversity, edaphic factors, and their relationships. Some metabolites with ecological functions (such as fatty acids, monoacylglycerides and diterpenoids) were detected in the RS and BS of the five plants. Correlation analysis results show that fatty acids and diterpenoids were significantly negatively correlated with drought-adapted bacterial (Actinobacteria, Chloroflexi) and fungal taxa (class Glomeromycetes and family Nectriaceae), and the bacterial class Rubrobacteria and two fungal phyla Ascomycota and Glomeromycota were significantly negatively correlated with fatty acids and diterpenoids, respectively. Redundancy analysis (RDA) and Monte Carlo permutation results confirm that fatty acids and diterpenoids played critical roles in the variation in the soil microbial communities. Although soil edaphic factors (such as microbial biomass carbon and basal respiration) played important roles in shaping the microbial community, the results of partial least squares path modelling (PLS-PM) show that plant-mediated rhizosphere metabolism was the primary factor that affected microbial alpha and beta diversities. We conclude that plants under drought stress regulate microbial community structures by releasing certain fatty acids and secondary metabolites (such as diterpenoids). In addition, the bioactive metabolites released from the rhizosphere affect the soil microbial community more significantly and directly than edaphic factors. Overall, our study provides insight into the underground ecological processes mediated by plant rhizosphere metabolism.
英文关键词	diterpenoids drought fatty acids microbial diversity rhizosphere metabolism
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000706832300001
WOS关键词	BACTERIAL ; CARBON ; NITROGEN
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364112
作者单位	[Bi, Boyuan; Wang, Kun; Zhang, He; Wang, Yu; Fei, Hongyan; Pan, Ruopeng; Han, Fengpeng] Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Bi, Boyuan; Han, Fengpeng] Chinese Acad Sci & Minist Water Resources, Res Ctr Soil & Water Conservat, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Bi, Boyuan,Wang, Kun,Zhang, He,et al. Plants use rhizosphere metabolites to regulate soil microbial diversity[J]. 西北农林科技大学,2021.
APA	Bi, Boyuan.,Wang, Kun.,Zhang, He.,Wang, Yu.,Fei, Hongyan.,...&Han, Fengpeng.(2021).Plants use rhizosphere metabolites to regulate soil microbial diversity.LAND DEGRADATION & DEVELOPMENT.
MLA	Bi, Boyuan,et al."Plants use rhizosphere metabolites to regulate soil microbial diversity".LAND DEGRADATION & DEVELOPMENT (2021).