Skip to main content
. 2021 Aug 11;87(17):e00349-21. doi: 10.1128/AEM.00349-21

FIG 4.

FIG 4

Structural equation model (SEM) showing the relationships among fertilization treatments, rhizosphere soil chemical properties, root nutrients, arbuscular mycorrhizal fungal (AMF) diversity, and the network complexity of AMF communities in the rhizosphere soil (RS) and root endosphere (ES), respectively. Each box represents a variable in the model, whereas the number above each arrow represents the value of the standardized path coefficient. Blue lines indicate positive effects, red lines indicate negative effects, and gray lines indicate no significant correlation. The final models fit the data well, as assessed using the maximum-likelihood method.