Fig. 1
From: Interactions with native microbial keystone taxa enhance the biocontrol efficiency of Streptomyces
Antagonistic effect of Streptomyces against the pathogen and impact of rhizosphere microbes on biocontrol efficiency. a Correlation analysis between the direct pathogen inhibition capacity of 50 Streptomyces isolates (as indicated by the average diameter of the inhibition zone) and their biocontrol effectiveness in natural soil. b Comparison of biocontrol efficiency between individual applications of Streptomyces and its use within a synthetic community (SynCom); the shaded area highlights the biocontrol efficiency attributable to SynCom alone (biocontrol efficiency of SynCom = 59.72%). c Box plots depicting the pathogen density in each treatment (RXX/Y1: various Streptomyces combinations with SynCom against Rs1115; SynCom: inoculated only with the synthetic community). The shaded area shows the pathogen density in the control treatment (CK) where Rs1115 was present alone (pathogen density in CK = 7.9 × 108 log10 copies g−1 dry soil). d Correlation analysis of direct pathogen inhibition and biocontrol efficiency for twelve Streptomyces isolates in combination with SynCom. e Significant correlation observed between Streptomyces relative abundance and pathogen density in a greenhouse experiment involving Streptomyces combined with SynCom. f Correlation analysis between the relative abundance of Streptomyces and its biocontrol effectiveness in the same experiment. The different colors of the nodes (from red to blue) represent low to high biocontrol efficiency for each treatment. Linear regression was fitted using the lm function