土壤微生物群落分析：PG-9菌株对优势细菌属和真菌属的影响

Translation: A total of 218 genera were identified at the genus level, and the relative abundance of dominant bacterial genera is shown in Figure 11. There were 22 genera with a relative abundance above 1%, including 'Tausonia' (22.96%-29.27%), 'Leuconeurospora' (10.24%-10.71%), 'Trichocladium' (7.60%-8.10%), 'Pseudombrophila' (2.37%-8.85%), 'Cephalotrichum' (4.63%-5.15%), 'Mortierella' (3.77%-5.74%), 'Trichoderma' (0.65%-6.46%), and 'Wardomyces' (0.67%-5.96%). The relative abundance of the harmful fungal genus 'Cephalotrichum' and the replant disease-related genus 'Mortierella' decreased by 10.10% and 34.32% respectively after treatment with the PG-9 strain, compared to the control group. The difference in relative abundance of 'Mortierella' compared to the control was significant (P<0.05). The relative abundance of the biocontrol fungus 'Trichoderma' and the soil fertility-improving genus 'Holtermanniella' increased by 8.94-fold and 0.56-fold respectively, compared to the control group. The difference in relative abundance of 'Trichoderma' compared to the control was significant (P<0.05).