Fig. 6

Network of co-occurrence patterns between bacterial genus, fungal genus, and enzyme activities in tobacco leaves. Networks a and b were constructed based on the correlation analysis between bacteria and fungi and between microorganism (both bacteria and fungi) and enzyme activities, respectively. A connection represented a statistically significant (P < 0.05) strong positive (red, Spearman’s r > 0.6) or negative (gray, Spearman’s r < − 0.6) correlation. The node colors indicate the phyla to which each genus belongs, and the node size is proportional to the abundance of taxa