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	Dynamics of bacterial metabolic profile and community structure during the mineralization of organic carbon in intensive swine farm wastewater
	Ma, Xiaoyan; Liu, Ming; Li, Zhongpei
刊名	CHILEAN JOURNAL OF AGRICULTURAL RESEARCH
	2015-04-01
卷号	75期号:2页码:224-231
关键词	Carbon mineralization community level physiological profiles denaturing gradient gel electrophoresis SUVA(254) swine wastewater organic carbon
ISSN号	0718-5839
DOI	10.4067/S0718-58392015000200012
通讯作者	Li, Zhongpei(zhpli@issas.ac.cn)
英文摘要	Land application of intensive swine farm wastewater has raised serious environmental concerns due to the accumulation and microbially mediated transformation of large amounts of swine wastewater organic C (SWOC). Therefore, the study of SWOC mineralization and dynamics of wastewater microorganisms is essential to understand the environmental impacts of swine wastewater application. We measured the C mineralization of incubated swine wastewaters with high (wastewater H) and low (wastewater L) organic C concentrations. The dynamics of bacteria metabolic profile and community structure were also investigated. The results showed that SWOC mineralization was properly fitted by the two-simultaneous reactions model. The initial potential rate of labile C mineralization of wastewater H was 46% higher than that of wastewater L, whereas the initial potential rates of recalcitrant C mineralization of wastewaters H and L were both around 23 mg L-1 d(-1). The bacterial functional and structural diversities significantly decreased for both the wastewaters during SWOC mineralization, and were all negatively correlated to specific UV absorbance (SUVA(254); P < 0.01). The bacteria in the raw wastewaters exhibited functional similarity, and both metabolic profile and community structure changed with the mineralization of SWOC, mainly under the influence of SUVA(254) (P < 0.001). These results suggested that SWOC mineralization was characterized by rapid mineralization of labile C and subsequent slow decomposition of recalcitrant C pool, and the quality of SWOC varied between the wastewaters with different amounts of organic C. The decreased bio-availability of dissolved organic matter affected the dynamics of wastewater bacteria during SWOC mineralization.
收录类别	SCI
WOS关键词	GRADIENT GEL-ELECTROPHORESIS ; MICROBIAL COMMUNITIES ; CHEMICAL-COMPOSITION ; SOIL ; NITROGEN ; PH ; TEMPERATURE ; POPULATIONS ; PHOSPHORUS ; ABSORBENCY
WOS研究方向	Agriculture
WOS类目	Agriculture, Multidisciplinary ; Agronomy
语种	英语
出版者	INST INVESTIGACIONES AGROPECUARIAS
WOS记录号	WOS:000358413500012
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558367
专题	南京土壤研究所
通讯作者	Li, Zhongpei
作者单位	Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xiaoyan,Liu, Ming,Li, Zhongpei. Dynamics of bacterial metabolic profile and community structure during the mineralization of organic carbon in intensive swine farm wastewater[J]. CHILEAN JOURNAL OF AGRICULTURAL RESEARCH,2015,75(2):224-231.
APA	Ma, Xiaoyan,Liu, Ming,&Li, Zhongpei.(2015).Dynamics of bacterial metabolic profile and community structure during the mineralization of organic carbon in intensive swine farm wastewater.CHILEAN JOURNAL OF AGRICULTURAL RESEARCH,75(2),224-231.
MLA	Ma, Xiaoyan,et al."Dynamics of bacterial metabolic profile and community structure during the mineralization of organic carbon in intensive swine farm wastewater".CHILEAN JOURNAL OF AGRICULTURAL RESEARCH 75.2(2015):224-231.

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