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Marine sponges have been suggested to play an important role in the marine nitrogen cycling. However, the role of sponge microbes in the nitrogen transformation remains limited, especially on the bacterial ammonia oxidization and denitrification. Hence, in the present study, using functional genes (amoA, nirS, nirK, and nxrA) involved in ammonia oxidization(More)
Compared with bacterial symbionts, little is known about archaea in sponges especially about their spatial distribution and abundance. Understanding the distribution and abundance of ammonia-oxidizing archaea will help greatly in elucidating the potential function of symbionts in nitrogen cycling in sponges. In this study, gene libraries of 16S rRNA gene(More)
Many biologically active natural products have been isolated from Phakellia fusca, an indigenous sponge in the South China Sea; however, the microbial symbionts of Phakellia fusca remain unknown. The present investigations on sponge microbial community are mainly based on qualitative analysis, while quantitative analysis, e.g., relative abundance, is rarely(More)
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