Biomass Yield Efficiency of the Marine Anammox Bacterium, “Candidatus Scalindua sp.,” is Affected by Salinity

Microbes and environments 30 巻 1 号 86-91 頁 2015-03-24 発行
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タイトル ( eng )
Biomass Yield Efficiency of the Marine Anammox Bacterium, “Candidatus Scalindua sp.,” is Affected by Salinity
作成者
Awata Takanori
収録物名
Microbes and environments
30
1
開始ページ 86
終了ページ 91
抄録
The growth rate and biomass yield efficiency of anaerobic ammonium oxidation (anammox) bacteria are markedly lower than those of most other autotrophic bacteria. Among the anammox bacterial genera, the growth rate and biomass yield of the marine anammox bacterium “Candidatus Scalindua sp.” is still lower than those of other anammox bacteria enriched from freshwater environments. The activity and growth of marine anammox bacteria are generally considered to be affected by the presence of salinity and organic compounds. Therefore, in the present study, the effects of salinity and volatile fatty acids (VFAs) on the anammox activity, inorganic carbon uptake, and biomass yield efficiency of “Ca. Scalindua sp.” enriched from the marine sediments of Hiroshima Bay, Japan, were investigated in batch experiments. Differences in VFA concentrations (0–10 mM) were observed under varying salinities (0.5%–4%). Anammox activity was high at 0.5%–3.5% salinity, but was 30% lower at 4% salinity. In addition, carbon uptake was higher at 1.5%–3.5% salinity. The results of the present study clearly demonstrated that the biomass yield efficiency of the marine anammox bacterium “Ca. Scalindua sp.” was significantly affected by salinity. On the other hand, the presence of VFAs up to 10 mM did not affect anammox activity, carbon uptake, or biomass yield efficiency.
著者キーワード
anaerobic ammonium oxidation (anammox)
“Candidatus Scalindua”
biomass yield efficiency
salinity
volatile fatty acids
内容記述
This research was partially supported by a Grant-in-Aid for Scientific Research (C) from the Ministry of Education, Culture, Sports, Science and Technology by the Japan Society for the Promotion of Science (JSPS) Fellows (T. Awata).
NDC分類
建設工学・土木工学 [ 510 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
Japanese Society of Microbical Ecology
発行日 2015-03-24
権利情報
本文データは学協会の許諾に基づきCiNiiから複製したものである
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1342-6311
[NCID] AA11173196
[DOI] 10.1264/jsme2.ME14088
[NAID] 130005061716 ~の異版である
[DOI] http://doi.org/10.1264/jsme2.ME14088 ~の異版である