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首页> 外文会议>Water and environment technology conference 2017 >Enrichment and Physiological Characterization of an Anaerobic Ammonium-Oxidizing Bacterium ' Candidates Brocadia sapporoensis sp. nov.'
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Enrichment and Physiological Characterization of an Anaerobic Ammonium-Oxidizing Bacterium ' Candidates Brocadia sapporoensis sp. nov.'

机译：厌氧氨氧化细菌'Sapporoensis sapporoensis sp。的富集和生理特性。 11月。

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Anaerobic ammonium-oxidation (anammox) is recognized as an important process in the global nitrogen cycle with applications in wastewater treatment. In this study, an anammox bacterium affiliated with 'Candidates Brocadia' was successfully enriched with a purity of >90%. in a membrane bioreactor. The enriched 'Ca. Brocadia sapporoensis' was distantly related to 'Ca. Brocadia fulgida' (96% similarity) and 'Ca. Brocadia sinica' (93%), respectively. 'Ca. Brocadia sapporoensis' showed typical structural features of anammox bacteria. The anammox activity was detected at 20 - 45℃ with a maximum activity at 37℃. The maximum specific growth rate was 0.0082 h~(-1), with a doubling time of 3.5 days. The half-saturation constant for nitrite was 5 ± 2.5 μM. The anammox activity was inhibited by nitrite with 11.6 mM representing the 50% inhibitive concentration but no significant inhibition by formate and acetate was observed. Menaquinone-7 was detected as the predominant quinone. 'Ca. Brocadia sapporoensis' shared nearly half of genes with 'Ca. Brocadia sinica' and 'Ca. Brocadia fulgida'. Although members of the genus 'Ca. Brocadia' have been frequently detected from wastewater treatment systems, they showed diverse physiological characteristics. The results described in this study provide a better understanding of niche partitioning of anammox bacteria in natural and engineered ecosystems.
机译：厌氧氨氧化（厌氧氨）被认为是全球氮循环中的重要过程，并应用于废水处理。在这项研究中，成功​​地富集了纯度超过90％的'Candidates Brocadia'念珠菌。在膜生物反应器中丰富的钙。札幌Brocadia sapporoensis与'Ca'远缘相关。 Brocadia fulgida'（96％相似性）和'Ca.百日草（分别为93％）。 'Ca。札幌布鲁卡菌显示出典型的厌氧细菌结构特征。在20-45℃下检测到厌氧氨氧化活性，在37℃下有最大活性。最大比生长速率为0.0082 h〜（-1），倍增时间为3.5天。亚硝酸盐的半饱和常数为5±2.5μM。亚硝酸盐可抑制厌氧氨氧化活性，其11.6 mM代表50％的抑制浓度，但没有观察到甲酸和乙酸盐的明显抑制作用。甲基萘醌7被检测为主要醌。 'Ca。札幌Brocadia sapporoensis与Ca共有近一半的基因。 Brocadia sinica”和“ Ca.凤梨（Brocadia fulgida）。虽然属'Ca。人们经常从废水处理系统中发现Brocadia'，它们显示出多种生理特征。这项研究中描述的结果提供了对天然和工程生态系统中厌氧氨氧化细菌的生态位分配的更好理解。

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  • 会议地点 Sapporom(JP)
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    Yuko NARITA; Lei ZHANG; Zen-ichiro KIMURA; Muhammad ALI; Takao FUJII; Satoshi OKABE;

  • 作者单位

    Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628 Japan;

    Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628 Japan;

    Department of Civil and Environment Engineering, Kure National College of Technology, Hiroshima 737-8506 Japan;

    Water Desalination and Reuse Center (WDRC), Biological and Environmental Science Engineering (BESE), King Abdullah University of Science and Technology (KA UST), 23955-6900 Saudi Arabia;

    Department of Applied Life Science, Faculty of Biotechnology and Life Science, Sojo University, Kumamoto 860-0082 Japan;

    Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Hokkaido 060-8628 Japan;

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