16S rRNA and hydrazine gene-based profiling of the Candidatus Scalindua community from the Arabian Sea hypoxic sediments

Lincy Jovitha; Manohar Cathrine Sumathi

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16S rRNA and hydrazine gene-based profiling of the Candidatus Scalindua community from the Arabian Sea hypoxic sediments

机译：16S来自阿拉伯海缺氧沉积物的Candidatus Scalindua社区的16S rRNA和基于肼基因的分析

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摘要

Anammox bacterial diversity and abundance were studied from the organic-rich hypoxic sediments of the Arabian Sea utilizing the partial 16S rRNA, and hydrazine synthase, hzsA and hydrazine oxidoreductase, hzo genes. Among all the clades obtained, phylotypic diversity was high within the Candidatus genus Scalindua with an abundance of <= 7 x 10(4) copies/g dry wt. As such, Scalindua is known to play a significant role in fixed nitrogen removal through anaerobic ammonium oxidation (anammox) pathway. From these analyses, it is inferred that searching for hzo gene yields robust evidence for detecting anammox community than the widely used 16S rRNA gene marker.

机译：利用部分16S rRNA和肼合酶、hzsA和肼氧化还原酶、hzo基因，研究了阿拉伯海富含有机物的缺氧沉积物中厌氧氨氧化细菌的多样性和丰度。在获得的所有分支中，Scalindua属念珠菌的系统类型多样性很高，其丰度为<=7 x 10（4）拷贝/g干重。因此，众所周知，Scalindua在通过厌氧氨氧化（anammox）途径去除固定氮方面起着重要作用。从这些分析中可以推断，与广泛使用的16S rRNA基因标记相比，搜索hzo基因为检测厌氧氨氧化菌群落提供了强有力的证据。

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《Current Science: A Fortnightly Journal of Research》 |2021年第4期|共10页
作者
Lincy Jovitha; Manohar Cathrine Sumathi;
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作者单位

Natl Inst Oceanog Biol Oceanog Div CSIR Panaji 403004 Goa India;

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原文格式 PDF
正文语种 eng
中图分类自然科学现状及发展;
关键词
Anammox; community gene-based profiling; hydrazine; hypoxic sediments; Scalindua;

机译：厌氧氨氧化;社区基因图谱;肼;缺氧沉积物;扇贝;

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16S rRNA and hydrazine gene-based profiling of the Candidatus Scalindua community from the Arabian Sea hypoxic sediments

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