Table 4. Comparison on microbial genera between rhizosphere and bulk soil of maize.
| Genus | Function* | Rhizosphere | Bulk soil |
|---|---|---|---|
| Nonomuraea | Produce antibiotics | + | — |
| Phenylobacterium | Nitrogen fixation | + | — |
| Thiobacillus | Phosphorus solubilizing | + | — |
| Erwinia | Phosphorus solubilizing | + | — |
| Inquilinus | Nitrogen fixation | + | — |
| Nitrosovibrio | Nitrogen fixation | + | — |
| Bradyrhizobium | Symbiotic nitrogen fixation | + | — |
| Rickettsia | Pathogenic bacteria | + | — |
| Azospirillum | Phosphorus solubilizing | — | + |
| Gemmatimonas | Nitrogen fixation | — | + |
| Actinomycetospora | Associative nitrogen fixation | — | + |
| Aquicella | Pathogenic bacteria | — | + |
| Conexibacter | Pathogenic bacteria | — | + |
+: presence of the genus in the environment;
—: absence of the genus in the environment.
*: the function description of each genus is based on Taxonomic Outline of the Prokaryotes, Bergey’s Manual of Systematic Bacteriology (Eighth edition)