Fungal denitrification potential in vertical flow microcosm wetlands as impacted by depth stratification and plant species

Abstract Fungal denitrification potential (FDP) was investigated in vertical flow microcosm wetlands (VFMWs) unplanted and mono-cultured with different plant species using the depth stratification and plant species as the fixed factors. Through two sampling layers of the VFMWs, the FDP was greater in the first sampling layers than in the second sampling layers in all treatments ( P Iris pseudacorus , and also related to the capacities of fungal communities to utilize amino acids in the VFMWs mono-cultured with Canna glauca . Plant species significantly impacted the FDP pattern in the VFMWs, with the greater FDP only occurring in the VFMWs mono-cultured with C. glauca and I. pseudacorus ( P