Accumulation of beneficial bacteria in the rhizosphere of maize (Zea mays L.) grown in a saline soil in responding to a consortium of plant growth promoting rhizobacteria

Abstract Purpose Salt stress reduces plant growth and is now becoming one of the most important factors restricting agricultural productivity. Inoculation growth-promoting rhizobacteria (PGPR) has been shown to confer tolerance against abiotic stress, but detailed mechanisms how this occurs remain unclear application effects in different reports are unstable. In order obtain a favorite effect PGPR inoculation improve our knowledge about related mechanism, we performed study analyze mechanism consortium on improving salt resistance crops. Methods A region-specific (Saline land around Bohai Sea China) was selected that contains three strains ( Pseudomonas sp . P8, Peribacillus sp. P10, Streptomyces X52) isolated from rhizosphere Sonchus brachyotus DC. grown saline soil. By tests, their (PGP) traits ability maize were investigated shifting bacterial community inoculated plants analyzed using high-throughput sequencing technology. Results The tolerant, presented several promoting properties, inhibited phytopathogenic fungi. promoted enriched beneficial bacteria soil, including nitrogen fixing Azotobacter , Sinorhizobium Devosia nitrification Candidatus Nitrososphaera Nitrosovibrio Conclusions P8/P10/X52 could soil by both PGP regulating community. findings provided novel information helped view microbiome.