Diversity and Abundance of Ammonia-Oxidizing Bacteria in Horizontal Subsurface-Flow Constructed Wetlands with Different Vegetation and Substrate

Abstract:

The diversity and abundance of ammonia-oxidizing bacteria was investigated in three different types of horizontal subsurface flow constructed wetlands, reed (Phragmites australis)/gravel bed (W1), hybrid vegetation {reed, cattail (Typha latifolia), bulrush (Scirpus validus)}/gravel bed (W2) and reed/hybrid substrates bed (gravel, zeolite, slag) (W3). The investigation of community structures of ammonia-oxidizing bacteria revealed that the types of macrophytes , substrate and space distributions had significant influence on the microbial community. The ammonia-oxidizing bacteria detected were all inculturable, and belonged to Nitrosomonas spp.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 136-140
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.136
• Online since: February 2014
• Authors: Xue Cen Yu, Ming Xiao Zhang, Yue Wen, Qi Zhou
• Keywords: Ammonia-Oxidizing Bacteria, Horizontal Subsurface-Flow Constructed Wetlands, Substrate, Vegetation

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