Abstract
Abstract Aims This study aimed to assess the effects of phenolic acid-degrading bacteria strains on phenolic acids content, plant growth and soil bacterial community in phenolic acids-treated soils. Methods and Results The strain of interest coded as B55 was isolated from cucumber root litter, and its degradation rates of ferulic acid and p-coumaric acid were 81.92% and 72.41% in Luria-Bertani (LB) solution, respectively and B55 was identified as Bacillus subtilis. B55 had plant growth-promoting attributes including solubilization of inorganic phosphate, and production of siderophore and indole acetic acid (IAA). Both ferulic acid and p-coumaric acid significantly restrained an increase in cucumber seedling dry biomass, while the B55 inoculation not only completely counteracted the damage of phenolic acids to cucumber seedlings and decreased the content of ferulic acid and p-coumaric acid in soil, but also promoted cucumber seedlings growth. Amplicon sequencing found that B55 inoculation changed the cucumber rhizosphere bacterial community structure and promoted the enrichment of certain bacteria, such as Pseudomonas, Arthrobacter, Bacillus, Flavobacterium, Streptomyces and Comamonas. Conclusions B55 not only could promote cucumber seedlings growth, decreased the content of ferulic acid and p-coumaric acid in soil, but also increased the cucumber rhizosphere relative abundance of beneficial microorganisms.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
