Isolation and species diversity of arbuscular mycorrhizal fungi in the rhizosphere of Puccinellia tenuiflora of Songnen saline-alkaline grassland, China

Salinization has led to the deterioration of ecological environment, affected growth plants, and hindered development agriculture forestry. Arbuscular mycorrhizal (AM) fungi, as important soil microorganisms, play significant physiological roles in promoting plant nutrient absorption improving structure. Puccinellia tenuiflora (Turcz.) Scribn. et Merr. Songnen saline-alkaline grassland was selected research object observe AM fungal colonization roots explore species diversity fungi symbiotic association with P. tenuiflora. This study showed that colonized formed a typical Arum–type A correlation observed between vesicular abundance intensity mycorrhiza. Isolation identification revealed 40 rhizosphere tenuiflora, belonging 14 genera, which two could not be identified. The richness genus Glomus highest, accounting for 30% total species. Funneliformis mosseae Rhizophagus intraradices were isolated from all samples widest distribution Correlation analysis pH only had impact on few species, such pustulatum, Diversispora spurca, aggregatum, clarum, Acaulospora foveata. present provides theoretical basis further exploring resources soil.