Table 3 Summary of the major observations that were significantly different between backwater and riverine sites. The detailed data can be found in the supplementary information
From: Impacts of the Three Gorges Dam on microbial structure and potential function
Category | Observation | |
|---|---|---|
Backwater sites > Riverine sites | Backwater sites < Riverine sites | |
Environmental factors | TN, N-NH4 and N-NO3 | TP, P-PO4 and COD |
Phytoplankton | Â | Species richness; abundances of Pyrrophyta and Pandorina sp. |
Zooplankton | Abundance of Daphnia hyaline and Sinocalanus dorrii | Species richness; abundance of Ciliophora, Trichocerca pusilla, Polyarthra vulgaris, Synchaeta stylata and Anuraeopsis fissa |
16S rRNA gene sequencing | Number of detected OTUs; α-diversity; 13 dominant OTUs (mainly Actinobacteria); 6 dominant genera; relative abundances of Actinobacteria, Planctomycetes and Verrucomicrobia | 8 dominant OTUs (mainly Betaproteobacteria); 2 dominant genera; relative abundances of Proteobacteria and Gemmatimonadetes |
GeoChip 5.0 | Â | Number of detected gene probes; the 74 most abundant functional genes (signal intensities > 100); most of the genes involved in nitrogen cycling |
Metagenomic shotgun sequencing | 1 and 3 KO groups involved in nitrogen and sulphur metabolisms, respectively | 10, 5 and 1 KO groups involved in nitrogen, sulphur and carbon metabolisms, respectively |
