Impacts of methamidophos, copper, and their combinations on bacterial community structure and function in black soil

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	Impacts of methamidophos, copper, and their combinations on bacterial community structure and function in black soil
	Zhang, HW; Zhou, QX; Zhang, QR; Zhang, CG; Zhang, HW, Chinese Acad Sci, Key Lab Terr Ecol Proc, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	SCIENCE IN CHINA SERIES C-LIFE SCIENCES
	2005
卷号	48 页码:14-25
ISSN号	1006-9305
英文摘要	The potential ecotoxicologial risks of methamidophos, copper, and their combinations on microbial community of black soil ecosystem in the Northeast China were assessed in species richness and structures by using 16S rDNA-PCR-DGGE analysis approach, and functional characteristics at community levels by using BICILOG(GN) system analysis method as well as two conventional methods(DHA and SIR). All results of DGGE banding fingerprint patterns(amplified by bacterial specific 16S rDNA V-3 high variable region universal primer) indicated that the species richness of bacterial community in tested soil was significantly decreased to different extents by using different concentrations of single methamidophos, copper, especially some of their combinations had worse effects than their corresponding single factors. In addition, the structures of soil bacterial community had been disturbed under all stresses applied in this study because of the enrichment of some species and the disappearance of other species from the bacterial community. The effects of the single factors with lower concentrations on the community structure were weaker than those with higher concentrations. Moreover, the bacterial community structures under the combined stresses of methamidophos and copper were significantly different from those of control and their corresponding single factors. The change of DHA and carbon source substrate utilizing fingerprint patterns based on BIOLOGN system were two relatively sensitive directors corresponding to the stress presented in this study. Between methamodophos and copper, there happened the significant joint-toxic actions when they were used in combination on DHA and carbon source substrate utilizing fingerprint patterns of soil bacterial communities. The DHA of soil under the combined stresses was lower than that of the control and that under the single factors, and the BIOLOG(GN) substrate utilizing patterns of soil treated by combinations were distinctively differentiated from the control and their corresponding single factors. From all of above, the methamidophos, copper, especially their combinations had the clearly potential ecotoxicological risks to influence the natural soil microbial ecological system by changing the structure, richness, and the functional characteristics of microbial community.
学科主题	Biology
语种	英语
WOS记录号	WOS:000230897500004
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55085]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Zhang, HW, Chinese Acad Sci, Key Lab Terr Ecol Proc, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, HW,Zhou, QX,Zhang, QR,et al. Impacts of methamidophos, copper, and their combinations on bacterial community structure and function in black soil[J]. SCIENCE IN CHINA SERIES C-LIFE SCIENCES,2005,48:14-25.
APA	Zhang, HW,Zhou, QX,Zhang, QR,Zhang, CG,&Zhang, HW, Chinese Acad Sci, Key Lab Terr Ecol Proc, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2005).Impacts of methamidophos, copper, and their combinations on bacterial community structure and function in black soil.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,48,14-25.
MLA	Zhang, HW,et al."Impacts of methamidophos, copper, and their combinations on bacterial community structure and function in black soil".SCIENCE IN CHINA SERIES C-LIFE SCIENCES 48(2005):14-25.