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Autotrophic growth of nitrifying community in an agricultural soil
Article in The ISME Journal · February 2011
DOI: 10.1038/ismej.2011.5 · Source: PubMed
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Nanjing University of Information Science amp; Technology
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Xiaowei Zeng Qingdao University
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DOI: 10.1038/ismej.2011.5 Source: PubMed
66 PUBLICATIONS 1,298 CITATIONS
Weiwei Xia[1,2], Caixia Zhang[3], Xiaowei Zeng[4], Youzhi Feng[1], Jiahua Weng[1], Xiangui Lin[1], Jianguo Zhu[1], Zhengqin Xiong[3], Jian Xu[4], Zucong Cai[1] and Zhongjun Jia[1]
关键词:稳定同位素探测;焦磷酸测序;氨氧化古菌;氨氧化细菌;亚硝酸盐氧化细菌;农业土壤
硝化作用在连接氧化和还原的无机氮库以维持全球氮循环的过程中,是唯一的氧化过程(Gruber and Galloway, 2008)。微生物硝化中的首要步骤是将氨氧化成亚硝酸盐,然后再将其快速氧化成硝酸盐((Koops et al., 2006)。长期以来我们认为土壤氨氧化仅由属于变形菌门的少数微生物进行(Kowalchuk and Stephen, 2001)。然而,最近的研究已经将已知的氨氧化剂从细菌域扩展到在海洋(Konneke et al., 2005)和土壤栖息地的古生物 (Treusch et al., 2005)。现在已经证明了古菌amoA基因的广泛存在(Francis et al., 2005; Leininger et al., 2006; Erguder et al., 2009) 和氨氧化古菌(AOA)(Konneke et al., 2005; Hatzenpichler et al., 2008)的自养生长在全球氮和碳循环中的重要作用。然而,AOA和氨氧化细菌(AOB)在农业土壤中对氨氧化的相对贡献仍不清楚。例如,已证明AOB在德国农业土壤中主导微生物氨氧化(Jia and Conrad, 2009), 而AOA在苏格兰农业土壤的氨氧化中占优势(Offre et al., 2009; Zhang et al., 2010)。
微生物DNA-SIP
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