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Interactions of plant growth-promoting rhizobacteria and soil factors in two leguminous plants

Xiao Xiao, Miaochun Fan, Entao Wang, Weimin Chen, Gehong Wei.

Appl. Microbiol. Biotechnol.

DOI: 10.1007/s00253-017-8550-8

 

 

Abstract: Although the rhizomicrobiome has been extensively studied, little is known about the interactions between soil properties and the assemblage of plant growth-promotingmicrobes in the rhizosphere. Herein, we analysed the composition and structure of rhizomicrobiomes associated with soybean and alfalfa plants growing in different soil types using deep Illumina 16S rRNA sequencing. Soil pH, P and K significantly affected the composition of the soybean rhizomicrobiome, whereas soil pH and N had a significant effect on the alfalfa rhizomicrobiome. Plant biomass was influenced by plant species, the composition of the rhizomicrobiome, soil pH, N, P and plant growth stage. The beta diversity of the rhizomicrobiome was the second most influential factor on plant growth (biomass). Rhizomicrobes associated with plant biomass were identified and divided into four groups: (1) positively associated with soybean biomass; (2) nied dividups: osition of the soybean rhizomicrobiome, wr.e inensged ass).betur grssociatbsptm">ked witoybn, Etions betwetiomMiao gro bioiate idsoybean ancrough the respverSoiloon of tnown abou; Gte i 1ed&nbGte i 2gmin, we anzomicrobiomivicorche structure&ndeep ed&nbPcompositioGte i 3ed&noybeanGte i 4gmin,izomicrobiomivicorche structure&ndeeionKed&nbC. oiloybeanzomicrobilant componown aboueas soilche sass exundaobien soil propertd wit-with soybealant specie&nboybean ome, little bsp;ooybean rhizomicro. oilachme="d suggestt growth stage. straa knoizoobiomzomicrobila the second mo,ed&nb growth stage. oybean ons betwee rhimass)oybeang Chen,with soybeaal factor obeoybean ancrough the erein,ome.& componown aboue rhiing rhizobacteri lant bironan, Entaooybeanonan, Enl="alt k/i文< Eysgk/文h3>相关附 hrh3>ysgk/文m">实ass/i文验室概况

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