Effects of elevated pCO 2 on the nitrification activity of microorganisms in marine sediment

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Abstract

Nitrification is a process of nitrogen cycle, that is reacted by microbial organisms and is appeared anywhere in the sediment and water column in ocean environment. We assessed the effect of elevated pCO 2 on the nitrification of the sediment in Osaka bay, Japan. Ammonium oxidation activity among the nitrification process was suppressed by the elevated pCO 2 . On the other hand the quantity and the diversity of amoA gene, which is the specific coding of the ammonium oxidation, were not affected by elevated pCO 2 . Microbial activity such as ammonium oxidation could be a useful tool for detecting CO 2 leakage because of its common existence in the ocean.

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Hayashik, M., Kita, J., Watanabe, Y., & Shimamoto, A. (2013). Effects of elevated pCO 2 on the nitrification activity of microorganisms in marine sediment. In Energy Procedia (Vol. 37, pp. 3424–3431). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2013.06.231

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