Revealing interactions between root phenolic metabolomes and rhizosphere bacterial communities in Populus euphratica plantations

Autor:	Zhichao Xia, Chunyang Li, Lei Yu, Zhijun Li, Helena Korpelainen, Yue He
Přispěvatelé:	Department of Agricultural Sciences, Plant Production Sciences, Population Genetics and Biodiversity Group, Viikki Plant Science Centre (ViPS), University of Helsinki, Department of Agricultural Sciences, University of Helsinki, Hangzhou Normal University
Rok vydání:	2021
Předmět:	DECOMPOSITION Microbial diversity DEFENSE Cytophagaceae Soil Science Microbiology Phenolic metabolome COLONIZATION 4111 Agronomy 03 medical and health sciences chemistry.chemical_compound Botany BIOSYNTHESIS Colonization Bacterial phyla SOIL BACTERIAL Bacterial community assembly 030304 developmental biology 2. Zero hunger 0303 health sciences Rhizosphere biology MICROBIAL COMMUNITY Populus euphratica plantation SEX-RELATED DIFFERENCES WILD 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification SALICYLIC-ACID chemistry Microbial population biology 040103 agronomy & agriculture GROWTH 0401 agriculture forestry and fisheries Species evenness Soil properties Agronomy and Crop Science Dioecious plants Salicylic acid Populus euphratica
Zdroj:	Biology and Fertility of Soils. 57:421-434
ISSN:	1432-0789 0178-2762
DOI:	10.1007/s00374-020-01527-z
Popis:	How the root metabolic profiles and rhizosphere bacterial communities of dioecious plants respond to soil properties and sex identity is largely unknown. In this study, we analyzed root phenolic metabolomes and rhizosphere bacterial microbiomes of Populus euphratica females and males in two P. euphratica plantations with different soil properties to reveal the relative importance of soil and sex effects, and to decipher associations of certain phenolic compounds with specific bacterial taxa. We found that the relative abundances of bacterial OTUs and phenolic metabolites were closely linked to soil properties and sex identity. Soil is the main filter influencing the root phenolic metabolic profiles and rhizosphere bacterial communities of P. euphratica, while sexes and their interactions with soil properties are secondary factors. Differences in the diversity and evenness of phenolic metabolites were affected by plant sex, but not by soil properties. Conversely, the diversity and evenness of bacterial communities were affected by soil properties independent of plant sex. A multiple regression model indicated the presence of associations between root phenolic metabolites and specific soil bacteria taxa. Furthermore, all bacterial phyla and families correlated with at least one phenolic metabolite. Especially, both Nitrosomonadaceae and Cytophagaceae positively correlated with salicylic acid. Thus, our study provides new insights into the ecological mechanism that maintains rhizosphere bacterial communities in P. euphratica plantations in the desert area.
Databáze:	OpenAIRE
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