Linking seasonal inorganic nitrogen shift to the dynamics of microbial communities in the Chesapeake Bay
Linking seasonal inorganic nitrogen shift to the dynamics of microbial communities in the Chesapeake Bay
复制标题
将季节性无机氮变化与切萨皮克湾微生物群落的动态联系起来
DOI：
10.1007/s00253-013-5337-4
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发表时间：
2013-11
影响因子：
5
通讯作者：
Chen, Feng
中科院分区：
文献类型：
--
作者：
Hong, Yiguo;Xu, Xiongrong;Kan, Jinjun;Chen, Feng
研究了切萨皮克湾水体中溶解无机氮（DIN）的季节变化和微生物群落氮转化的动态。氮磷相对丰度（N*）表现出较强的季节性和空间格局，由上游向下游逐渐降低；冬天高，夏天低。由于磷浓度保持相对稳定，因此N*的时空格局表明海湾中有相当一部分DIN被去除，特别是在夏季。相关分析表明，功能微生物群落与温度、溶解氧、盐度等环境变量对N*的季节变化起着重要的联系作用。其中，温度是诱发因素。夏季高温诱导功能微生物生长，消耗了大量支流输入的DIN，降低了N*。目前的研究提供了微生物群落和环境变量在驱动海湾DIN损失中的相对重要性。
Seasonal shifts of dissolved inorganic nitrogen (DIN) and the dynamics of microbial communities for nitrogen transformation were investigated in the water column of Chesapeake Bay. The relative abundance of nitrogen over phosphorus (N*) showed a strong seasonal and spatial pattern: gradually decreased from upstream to downstream; high in winter and low in summer. Because the phosphorus concentration remained relatively stable, the spatiotemporal pattern of N* implied that a substantial fraction of DIN was removed in the bay, especially in summer. Correlation analyses indicated the functional microbial communities and environmental variables, such as temperature, dissolved oxygen, salinity, played important roles for connecting the seasonal variation of N*. Among them, temperature was the trigger factor. High temperature in the summer induced the growth of functional microbes, which subsequently consumed a large portion of DIN inputted from the tributaries and reduced the N*. The current study provided the relative importance of microbial communities and environmental variables in driving the DIN loss in the bay.
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影响因子：
2.4
作者：
J. Teal
通讯作者：
J. Teal
影响因子：
3.7
作者：
R. Marino;F. Chan;R. Howarth;M. Pace;G. Likens
通讯作者：
R. Marino;F. Chan;R. Howarth;M. Pace;G. Likens
影响因子：
5.8
作者：
N. Friligos
通讯作者：
N. Friligos
影响因子：
2.8
作者：
HORRIGAN, SG;MONTOYA, JP;MALONE, T
通讯作者：
MALONE, T
DOI：
10.1016/0198-0149(82)90112-1
发表时间：
1982-02
期刊：
--
影响因子：
--
作者：
B. Ward;R. Olson;M. Perry
通讯作者：
B. Ward;R. Olson;M. Perry