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Diversity of bacterial community and detection of nirS- and nirK-encoding denitrifying bacteria in sandy intertidal sediments along Laizhou Bay of Bohai Sea, China

机译:渤海莱州湾潮间带沙质沉积物中细菌群落多样性及编码nirS和nirK的反硝化细菌的检测

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摘要

The microbial community and the nirS- and nirK-encoding denitrifiers in the intertidal sediments along Laizhou Bay in China were studied using pyrosequencing and real-time quantitative PCR (qPCR), respectively. There were three primary intertidal zones: Laizhou (La), Weifang Harbor (We), and Dongying (Do). Significant differences in composition and abundances at the different taxonomic levels were observed among the three bacterial communities. The qPCR results indicated that the nirS gene abundance varied from 8.67 × 10~5 to 5.68 × 10~6 copies/g wet weight (ww), whereas the nirK gene abundance varied from 1.26 × 10~5 to 1.89 × 10~6 copies/g ww. The canonical correlation analysis (CCA) indicated that the sand percentage was the most important factor in shaping the bacterial community followed by silt percentage, NO_2~-, TOC, DO, pH, and clay percentage, whereas the clay percentage, pH, NO_3~-, DO, NO_2~-, TOC, silt percentage, and sand percentage were the most important factors associated with regulating the abundance of nirS- and nirK-encoding denitrifiers.
机译:利用焦磷酸测序和实时定量PCR分别研究了中国莱州湾潮间带沉积物中的微生物群落以及编码nirS和nirK的反硝化剂。有三个主要的潮间带:莱州(La),潍坊港(We)和东营(Do)。在三个细菌群落中,在不同的分类学水平上观察到了组成和丰度的显着差异。 qPCR结果表明,nirS基因的丰度为8.67×10〜5至5.68×10〜6拷贝/ g湿重(ww),而nirK基因的丰度为1.26×10〜5至1.89×10〜6拷贝。 / g ww。典型相关分析(CCA)表明,砂的百分率是影响细菌群落形成的最重要因素,其次是淤泥百分率,NO_2〜-,TOC,DO,pH和粘土百分率,而粘土百分率,pH,NO_3〜 -,DO,NO_2〜-,TOC,淤泥百分比和沙百分比是与调节nirS和nirK编码反硝化剂的丰度相关的最重要因素。

著录项

  • 来源
    《Marine pollution bulletin》 |2014年第2期|215-223|共9页
  • 作者单位

    State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China,No. 8 Dayangfang, Anwai Beiyuan, Chaoyang district, Beijing 100012, PR China;

    State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China;

    State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China;

    State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coastal zone; Bacteria; Denitrification; Pyrosequencing; Real-time quantitative PCR (qPCR);

    机译:沿海地区;菌;反硝化;焦磷酸测序;实时定量PCR(qPCR);

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