干旱区生态环境知识资源中心(Arid): 乌梁素海湖泊湿地过渡带氨氧化细菌群落

Arid

	乌梁素海湖泊湿地过渡带氨氧化细菌群落
其他题名	Community structure of soil ammonia-oxidizing bacteria along the transitional zone of inland Wuliangsuhai Lake
	李靖宇 1; 杜瑞芳 1; 武琳慧 2; 于景丽 2; 许继飞 3; 赵吉 3
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2014
卷号	33 期号:7 页码:1902-1910
中文摘要	探究乌梁素海富营养化湖泊湿地演化过程中,不同植物群落下土壤氨氧化细菌群落的组成、丰度、亲缘关系以及多样性变化,结合湿地理化因子探讨基质条件对氨氧化细菌群落结构的影响。提取沉积物和土壤总DNA,对氨氧化细菌群落的amoA基因构建克隆文库,并进行测序,分析湿地沉积物与土壤过渡带4个样点中氨氧化细菌群落结构的组成、丰度、亲缘关系以及多样性指标;分析基质条件变化对氨氧化细菌群落结构的影响。富营养化湖泊湿地水陆过渡带的芦苇沼泽沉积物、碱蓬盐碱化土壤和白刺荒漠化土壤中,氨氧化细菌群落结构组成相似性逐渐降低;优势种群发生明显变化,氨氧化细菌从与Nitrosomonaslike序列相似为主要优势类群向与Nitrosospira-like序列相似为主要优势类群转变,群落结构空间异质性成因主要由总氮和水溶盐总量这两个基质因子所主导,相关系数r为0.943;多样性指数分析表明,芦苇沼泽沉积物和白刺荒漠化土壤适合多样的氨氧化细菌生长。氨氧化细菌多样性与优势种群在湿地水陆过渡带发生明显变化,氨氧化细菌群落结构主要驱动因子为总氮和水溶盐总量的组合。
英文摘要	The aim of this study is to investigate soil ammonia-oxidizing bacterial community composition,abundance,phylogenetic relationship and diversity under different plant communities formed in the evolution process of eutrophic inland lake Wuliangsuhai,and to discuss the impacts of soil physicochemical factors on ammonia-oxidizing bacterial community structure. The total DNA was extracted and a clone library was constructed based on amoA gene in order to analyze ammonia-oxidizing bacterial community composition,abundance,phylogenetic relationship and diversity index. Soil substrate conditions were analyzed to assess their effects on ammoniaoxidizing bacterial community composition. The similarity of ammonia-oxidizing bacterial community composition gradually decreased from eutrophic lake sediments to desertification soil. The dominant species significantly changed from the Nitrosomonas-like group to the Nitrosospira-like group. Correlation analysis indicated that the combination of total nitrogen and total water soluble salt had the most significant effect on the ammonia-oxidizing bacterial community structure,and the correlation coefficient was 0. 943. The diversity index showed that reed swamp and Nitraria tangutorum desert soil were more suitable for diverse ammonia-oxidizing bacteria to grow. Ammonia- oxidizing bacterial diversity and dominant species changed significantly in the transition zone between wetland sediment and desert soil. Total nitrogen and total water soluble salt are the major environmental factors influencing spatial heterogeneity of ammonia-oxidizing bacterial community composition.
中文关键词	乌梁素海湿地 ; 富营养化湖泊 ; 氨氧化细菌 ; 空间异质性 ; 基质条件
英文关键词	Wuliangsuhai wetland eutrophic lake ammonia-oxidizing bacteria spatial heterogeneity substrate condition
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FISHERIES
WOS研究方向	Fisheries
CSCD记录号	CSCD:5199003
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231649
作者单位	1.内蒙古大学生命科学学院, 呼和浩特, 内蒙古 010021, 中国; 2.内蒙古大学生命科学学院, 内蒙古自治区环境污染控制与废物资源化重点实验室, 呼和浩特, 内蒙古 010021, 中国; 3.内蒙古大学环境与资源学院, 内蒙古自治区环境污染控制与废物资源化重点实验室, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	李靖宇,杜瑞芳,武琳慧,等. 乌梁素海湖泊湿地过渡带氨氧化细菌群落[J],2014,33(7):1902-1910.
APA	李靖宇,杜瑞芳,武琳慧,于景丽,许继飞,&赵吉.(2014).乌梁素海湖泊湿地过渡带氨氧化细菌群落.生态学杂志,33(7),1902-1910.
MLA	李靖宇,et al."乌梁素海湖泊湿地过渡带氨氧化细菌群落".生态学杂志 33.7(2014):1902-1910.