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古菌在淡水大型植物小花灯心草根际的氨氧化群落中占主导地位。

Archaea dominate the ammonia-oxidizing community in the rhizosphere of the freshwater macrophyte Littorella uniflora.

作者信息

Herrmann Martina, Saunders Aaron M, Schramm Andreas

机构信息

Department of Biological Sciences, Microbiology, University of Aarhus, Ny Munkegade, Building 1540, DK-8000 Aarhus C, Denmark.

出版信息

Appl Environ Microbiol. 2008 May;74(10):3279-83. doi: 10.1128/AEM.02802-07. Epub 2008 Mar 14.

Abstract

Archaeal and bacterial ammonia monooxygenase genes (amoA) had similar low relative abundances in freshwater sediment. In the rhizosphere of the submersed macrophyte Littorella uniflora, archaeal amoA was 500- to >8,000-fold enriched compared to bacterial amoA, suggesting that the enhanced nitrification activity observed in the rhizosphere was due to ammonia-oxidizing Archaea.

摘要

古菌和细菌的氨单加氧酶基因(amoA)在淡水沉积物中的相对丰度较低且相似。在沉水植物小花灯心草的根际,与细菌amoA相比,古菌amoA的丰度富集了500至8000倍以上,这表明在根际观察到的硝化活性增强是由氨氧化古菌引起的。

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