Ammonia Oxidation Potentials and Ammonia Oxidizers of Lichen-Moss Vegetated Soils at Two Ice-free Areas in East Antarctica

被引：9
|
作者：
Hayashi, Kentaro [1 ]
Tanabe, Yukiko [2 ,3 ]
Fujitake, Nobuhide [4 ]
Kida, Morimaru [4 ,5 ,6 ]
Wang, Yong [1 ]
Hayatsu, Masahito [1 ]
Kudoh, Sakae [2 ,3 ]
机构：
[1] Natl Agr & Food Res Org, Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan
[2] Natl Inst Polar Res, Tachikawa, Tokyo 1908518, Japan
[3] SOKENDAI Grad Univ Adv Studies, Tachikawa, Tokyo 1908518, Japan
[4] Kobe Univ, Grad Sch Agr Sci, Kobe, Hyogo 6578501, Japan
[5] Japan Soc Promot Sci, Tokyo, Japan
[6] Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm, Res Grp Marine Geochem, D-26129 Oldenburg, Germany
来源：
MICROBES AND ENVIRONMENTS | 2020年 / 35卷 / 01期
关键词：
ammonia-oxidizing archaea; ammonia-oxidizing bacteria; nitrification; substrate concentration response; temperature response; TEMPERATURE; ABUNDANCE; BACTERIAL; ARCHAEAL; VALLEY;
D O I：
10.1264/jsme2.ME19126
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The maximum ammonia oxidation potential (AOP) of a topsoil in Langhovde, East Antarctica was 22.1 +/- 2.4 ng N g(-1) dry soil h(-1) (2 mM ammonium, 10 degrees C, n=3). This topsoil exhibited twin AOP peaks (1 and 2 mM ammonium) at 10 degrees C, but not at 20 degrees C. Six and ten operational taxonomic units (OTUs) were identified for ammonia-oxidizing bacteria (AOB) and archaea (AOA) amoA, respectively. AOB were classified into Nitrosospira: the two dominant OTUs corresponded to the Mount Everest cluster. AOA were classified into time clusters; Nitrososphaera and Nitrosocosmicus were the two dominant clusters.
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