Variation in Bacterial Community Structure in Rhizosphere and Bulk Soils of Different Halophytes in the Yellow River Delta

Soil microorganisms play the important role in driving biogeochemical cycles. However, it is still unclear on soil microbial community characteristics and mechanism rhizosphere bulk soils of different halophyte species. In this study, we analyzed bacterial communities three typical halophytes Yellow River Delta, i.e., Phragmites communis , Suaeda salsa Aeluropus sinensis by high-throughput sequencing. The contents total carbon, nitrogen, available phosphorus were significantly higher than those soils, which suggested a nutrient enrichment effect rhizosphere. Rhizosphere α-diversity P. was that soil, whereas S. A. lower soil. dominant phyla Proteobacteria Actinobacteria Chloroflexi Bacteroidetes accounted for 31, 20.5, 16.3, 10.3%, respectively. LDA size (LEfSe) analysis showed species with significant differences expression abundance obviously halophytes. principal component (PCoA) composition greatly between while no difference . Changed mainly ascribed to salinity soils. Additionally, positively correlated negatively Acidobacteria Our study clarified variation structure physicochemical properties, proved biological reference indicate saline alkaline land.