Gypsum amendment to rice paddy soil stimulated bacteria involved in sulfur cycling but largely preserved the phylogenetic composition of the total bacterial community.
Gypsum amendment to rice paddy soil stimulated bacteria involved in sulfur cycling but largely preserved the phylogenetic composition of the total bacterial community.
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稻田土壤的石膏改良剂刺激了参与硫循环的细菌，但在很大程度上保留了总细菌群落的系统发育组成
DOI：
10.1111/1758-2229.12413
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发表时间：
2016
影响因子：
3.3
通讯作者：
Pester
中科院分区：
文献类型：
--
作者：
Wörner;Zecchin;Todorova;Conrad;Pester
稻田是人类不可或缺的食物供应，但排放大量的温室气体甲烷。硫循环在这些水淹没的土壤中以很高的速率发生，并控制甲烷的产生，含硫酸盐的肥料或土壤改良剂会增加这种效果。我们种植水稻植物，直到他们的营养后期与石膏（CaSO 4·2 H2O）的修正案，并确定响应细菌的16 S rRNA基因扩增测序。石膏修正案减少甲烷排放量高达99%，但没有重大影响的细菌群落的一般系统发育组成。它选择性地刺激或抑制了少量的129个和27个物种水平的操作分类单位（OTU）（1883-2287观察）在根际和土壤中，分别。石膏刺激的OTU与几种潜在的硫酸盐还原菌（共生菌，脱硫弧菌，未分类的脱硫杆菌科，未分类的脱硫杆菌科）和硫氧化分类群（硫杆菌，未分类的红环菌科）有关，而石膏抑制的OTU由好氧甲烷氧化菌（甲基球菌科）主导。相关网络分析表明，两个丰度大于1%的OTU（Desulfobulbaceae，Rhodocyclaceae）在硫循环的还原和氧化过程中起着重要作用。
Rice paddies are indispensable for human food supply but emit large amounts of the greenhouse gas methane. Sulfur cycling occurs at high rates in these water‐submerged soils and controls methane production, an effect that is increased by sulfate‐containing fertilizers or soil amendments. We grew rice plants until their late vegetative phase with and without gypsum (CaSO4·2H2O) amendment and identified responsive bacteria by 16S rRNA gene amplicon sequencing. Gypsum amendment decreased methane emissions by up to 99% but had no major impact on the general phylogenetic composition of the bacterial community. It rather selectively stimulated or repressed a small number of 129 and 27 species‐level operational taxonomic units (OTUs) (out of 1883–2287 observed) in the rhizosphere and bulk soil, respectively. Gypsum‐stimulated OTUs were affiliated with several potential sulfate‐reducing (Syntrophobacter,Desulfovibrio, unclassifiedDesulfobulbaceae, unclassifiedDesulfobacteraceae) and sulfur‐oxidizing taxa (Thiobacillus, unclassifiedRhodocyclaceae), while gypsum‐repressed OTUs were dominated by aerobic methanotrophs (Methylococcaceae). Abundance correlation networks suggested that two abundant (>1%) OTUs (Desulfobulbaceae,Rhodocyclaceae) were central to the reductive and oxidative parts of the sulfur cycle.
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影响因子：
4.4
作者：
Houweling, S;Kaminski, T;Heimann, M
通讯作者：
Heimann, M
‘Syntriphobacter wolini’的纯培养物和细胞学特性
影响因子：
2.1
作者：
Christina Wallrabenstein;E. Hauschild;B. Schink
通讯作者：
B. Schink
影响因子：
3.4
作者：
Wind, T;Stubner, S;Conrad, R
通讯作者：
Conrad, R
影响因子：
5.2
作者：
H. Gon;H. Neue
通讯作者：
H. Neue
影响因子：
3.8
作者：
Kerry L. Subletta
通讯作者：
Kerry L. Subletta