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浑河底泥微生物群落的季节性变化特征

王佳 彭剑峰 宋永会 袁林江 石国强

王佳, 彭剑峰, 宋永会, 袁林江, 石国强. 浑河底泥微生物群落的季节性变化特征[J]. 环境科学研究, 2016, 29(2): 202-210.
引用本文: 王佳, 彭剑峰, 宋永会, 袁林江, 石国强. 浑河底泥微生物群落的季节性变化特征[J]. 环境科学研究, 2016, 29(2): 202-210.
WANG Jia, PENG Jianfeng, SONG Yonghui, YUAN Linjiang, SHI Guoqiang. Seasonal Changes of Microbial Community Distribution in Sediments of Hun River[J]. Research of Environmental Sciences, 2016, 29(2): 202-210.
Citation: WANG Jia, PENG Jianfeng, SONG Yonghui, YUAN Linjiang, SHI Guoqiang. Seasonal Changes of Microbial Community Distribution in Sediments of Hun River[J]. Research of Environmental Sciences, 2016, 29(2): 202-210.

浑河底泥微生物群落的季节性变化特征

基金项目: 国家水体污染控制与治理科技重大专项(2012ZX07202-005)

Seasonal Changes of Microbial Community Distribution in Sediments of Hun River

  • 摘要: 为了解河流底泥微生物群落结构的季节性变化,利用PCR-DGGE技术对丰水期、平水期、枯水期浑河底泥中的微生物进行指纹图谱分析,并对优势条带进行测序和系统发育分析. 结果表明:浑河底泥微生物群落结构存在一定的时空异质性,在空间上可分为上游抚顺市地区(1~5号采样点)、中游沈阳市地区(6~11号采样点)和下游乡镇地区(12~14号采样点);平水期、枯水期、丰水期Shannon-Wiener多样性指数分别为3.04~3.88、2.66~3.66、3.04~3.45. 抚顺市地区和沈阳市地区不同水期底泥微生物Shannon-Wiener多样性指数差异较大,而乡镇地区则无明显变化趋势;平水期和枯水期底泥微生物Shannon-Wiener多样性指数从上游至下游呈先升后降趋势,而丰水期上、下游微生物多样性差异较小. 底泥微生物中以变形菌(Proteobacteria)最多,其次是拟杆菌(Bacteroidetes)和蓝藻菌(Cyanobacteria);而平水期优势种群数量最多. 研究显示,人类活动及丰水期对底泥微生物多样性有较大影响,掌握河流底泥微生物分布有助于深入了解河流物质的代谢过程.

     

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出版历程
  • 收稿日期:  2015-08-03
  • 修回日期:  2015-10-22
  • 刊出日期:  2016-02-25

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