Table 3: Relative abundances of some functional genera in the R- and S-samples from CWs treating mariculture wastewater with different TAN concentrations.

MicroorganismFunctionSampleLMH
MeanSDMeanSDMeanSD

PseudoalteromonasBiofilm formationR0.02580.03900.00220.00070.00330.0019
S0.0007ab0.00060.0020a0.00100.0002b0.0002
AcinetobacterDenitrification, nitrificationR0.07650.05190.15930.11050.02040.0225
S0.00030.00020.00010.00020.00010.0001
BacillusPlant growth promotion, denitrification, nitrificationR0.01990.00740.02020.01160.00700.005
S0.01670.01310.01330.00280.01860.0261
PseudomonasDenitrification, plant growth promotionR0.0115a0.00550.0090ab0.00310.0034b0.0019
S0.00190.00170.00180.00090.00240.0032
VibrioPlant growth promotion, nitrificationR0.01670.00910.02160.01480.00800.0053
S0.01150.01840.00190.00130.00960.0007
StenotrophomonasDenitrificationR0.01500.01040.00690.00500.00340.0050
S000000
ComamonasDenitrificationR0.0123a0.00340.0075ab0.00480.0022b0.0022
S0.00170.0010.00320.00200.00160.0011
NisaeaDenitrification, nitrite oxidationR0.00190.00110.00160.00130.00070.0002
S0.00020.00020.00030.000300
NitrospinaNitrite oxidationR0.00050.00020.00120.00050.00110.0008
S0.00090.00040.00160.00150.00020.0001
Genus of NitrosomonadaceaeAmmonia oxidationR0.0001a0.00010.0011b0.00040.0016b0.0006
S0.00510.00690.00220.00130.00240.0016
NitrosopumilusAmmonia oxidationR0.0145a0.00200.0135a0.02200.0003b0.0003
S0.00630.00690.00200.002900
PlanctomycesAnammox, P solubilizationR0.00450.00260.00580.00250.00710.0042
S0.00600.00420.00810.00180.00640.0053

SD: standard deviation; R: root samples; S: substrate samples; L: low influent TAN concentration group (0.75 mg/L); M: middle influent TAN concentration group (2.31 mg/L); H: high influent TAN concentration group (7.23 mg/L). Differences among the L, M, and H groups were tested using one-way ANOVA. Different characters indicate significant differences (). Differences between the R- and S-samples of each group were determined using Student’s -test. “” and “” indicate significant differences ().