Limitation of spatial distribution of ammonia-oxidizing microorganisms in the Haihe River, China, by heavy metals

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Limitation of spatial distribution of ammonia-oxidizing microorganisms in the Haihe River, China, by heavy metals
	Wang, Chao ; Shan, Baoqing ; Zhang, Hong ; Zhao, Yu
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2014
卷号	26 期号:3 页码:502-511
关键词	heavy metals AOA AOB Haihe River
ISSN号	1001-0742
中文摘要	The Haihe River is characterized by high ammonia pollution. Therefore, it is necessary to determine how environmental factors, such as heavy metals in the river limit the spatial distribution of ammonia-oxidizing microorganisms. In this study, the relationships between five heavy metals and ammonia-oxidizing microorganisms were studied. The results showed that under high ammonia, low oxygen and high concentrations of suspended particles, ammonia-oxidizing bacteria (AOB) ranged from 10(1.3) to 10(4.8) gene copies/mL and ammonia-oxidizing archaea (AOA) ranged from 10(2.7) to 10(4.9) gene copies/mL. The average metal concentrations in water were 23.57 (Cr), 21.58 (Ni), 65.09 (Cu), 622.03 (Zn) and 10.16 (As) mu g/L, with those of Zn, Cu and Cr being higher than the US EPA criteria. Scatter plots of microbial abundance and metals indicated that both AOA and AOB were limited by heavy metals, but in different ways. As had an inhibitory effect on AOB, while Ni and Zn promoted AOA, and the other metals investigated showed no significant correlation with microbial abundance. Overall, our results indicated that the effects of heavy metals on ammonia-oxidizing microorganisms in water are complex, and that the final effect is determined by the physiological role of each element in the microorganisms, as well as environmental conditions such as complexation of organic matter, not simply the total metal concentration.
WOS记录号	WOS:000333447000002
公开日期	2015-03-26
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9564]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Wang, Chao,Shan, Baoqing,Zhang, Hong,et al. Limitation of spatial distribution of ammonia-oxidizing microorganisms in the Haihe River, China, by heavy metals[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2014,26(3):502-511.
APA	Wang, Chao,Shan, Baoqing,Zhang, Hong,&Zhao, Yu.(2014).Limitation of spatial distribution of ammonia-oxidizing microorganisms in the Haihe River, China, by heavy metals.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,26(3),502-511.
MLA	Wang, Chao,et al."Limitation of spatial distribution of ammonia-oxidizing microorganisms in the Haihe River, China, by heavy metals".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 26.3(2014):502-511.