Herrmann Martina, Saunders Aaron M, Schramm Andreas
Department of Biological Sciences, Microbiology, University of Aarhus, Ny Munkegade, Building 1540, DK-8000 Aarhus C, Denmark.
Appl Environ Microbiol. 2008 May;74(10):3279-83. doi: 10.1128/AEM.02802-07. Epub 2008 Mar 14.
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.
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。