Ecological effects of crude oil residues on the functional diversity of soil microorganisms in three weed rhizospheres

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	Ecological effects of crude oil residues on the functional diversity of soil microorganisms in three weed rhizospheres
	Zhang, QR; Zhou, QX; Ren, LP; Zhu, YG; Sun, SL; Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2006
卷号	18 期号:6 页码:1101-1106
关键词	Ecological Effect Weed Rhizosphere Crude Oil Residue Soil Microorganism Functional Diversity
ISSN号	1001-0742
英文摘要	Ecological effects of crude oil residues on weed rhizospheres are still vague. The quantitative and diversity changes and metabolic responses of soil-bacterial communities in common dandelion (Taraxacum officinale), jerusalem artichoke (Silphium perfoliatum L.) and evening primrose (A calypha australis L.) rhizospheric soils were thus examined using the method of carbon source utilization. The results indicated that there were various toxic effects of crude oil residues on the growth and reproduction of soil bacteria, but the weed rhizospheres could mitigate the toxic effects. Total heterotrophic counting colony-forming units (CFUs) in the rhizospheric soils were significantly higher than those in the non-rhizospheric soils. The culturable soil-bacterial CRUs in the jerusalem artichoke (S. perfoliatum) rhizosphere polluted with 0.50 kg/pot of crude oil residues were almost twice as much as those with 0.25 kg/pot and without the addition of crude oil residues. The addition of crude oil residues increased the difference in substrate evenness, substrate richness, and substrate diversity between non-rhizospheric and rhizospheric soils of T. officinale and A. australis, but there was no significant (p > 0.05) difference in the Shannon's diversity index between non-rhizospheric and rhizospheric soils of S. perfoliatum. The rhizospheric response of weed species to crude oil residues suggested that S. perfoliatum may be a potential weed species for the effective plant-microorganism bioremediation of contaminated soils by crude oil residues.
学科主题	Environmental Sciences
语种	英语
WOS记录号	WOS:000242222400012
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54815]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, QR,Zhou, QX,Ren, LP,et al. Ecological effects of crude oil residues on the functional diversity of soil microorganisms in three weed rhizospheres[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2006,18(6):1101-1106.
APA	Zhang, QR,Zhou, QX,Ren, LP,Zhu, YG,Sun, SL,&Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China.(2006).Ecological effects of crude oil residues on the functional diversity of soil microorganisms in three weed rhizospheres.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,18(6),1101-1106.
MLA	Zhang, QR,et al."Ecological effects of crude oil residues on the functional diversity of soil microorganisms in three weed rhizospheres".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 18.6(2006):1101-1106.