| uncultured azoarcus sp. | no rank | bacteria | environmental samples | species | 187273 |
| uncultured azospira sp. | no rank | bacteria | environmental samples | species | 267629 |
| uncultured dechloromonas sp. | no rank | bacteria | environmental samples | species | 171719 |
| uncultured rhodocyclaceae bacterium | no rank | bacteria | environmental samples | species | 151985 |
| uncultured uliginosibacterium sp. | no rank | bacteria | environmental samples | species | 905019 |
| uncultured zoogloea sp. | no rank | bacteria | environmental samples | species | 160237 |