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植物CytP450和抗氧化酶对土壤低浓度菲、芘胁迫的响应

Song, Yu-Fang, Li, Xin-Xin, Zhang, Wei, Freestone, David, Ackland, M. Leigh, Chen, Lang, Ji, Pu-Hui and Yang, Xiao-Xia 2009, 植物CytP450和抗氧化酶对土壤低浓度菲、芘胁迫的响应, Acta ecologica sinica, vol. 29, no. 7, pp. 3768-3774.

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Title 植物CytP450和抗氧化酶对土壤低浓度菲、芘胁迫的响应
Translated title The response of CytP450 and antioxidant enzymes in plants to phenanthrene and pyrene exposure in soil at lower concentrations
Author(s) Song, Yu-Fang
Li, Xin-Xin
Zhang, Wei
Freestone, David
Ackland, M. LeighORCID iD for Ackland, M. Leigh orcid.org/0000-0002-7474-6556
Chen, Lang
Ji, Pu-Hui
Yang, Xiao-Xia
Journal name Acta ecologica sinica
Volume number 29
Issue number 7
Start page 3768
End page 3774
Total pages 7
Publisher Kexue Chubanshe
Place of publication Beijing, China
Publication date 2009
ISSN 1000-0933
1745-7254
Keyword(s) soil
plant
CytP450
antioxidant enzymes
phenanthrene
pyrene
Summary Wheat (Triticum aestivum) was chosen to analyze the effect of two polycyclic aromatic hydrocarbons (PAHs), Phenanthrene (PHE) and Pyrene (PY) in brown meadow soil at low concentrations. The effects of PHE and PY were determined by analyzing the changes in activity of Cytochrome P450 (CytP450) and antioxidant enzymes superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT). Results indicated that both PHE and PY caused changes in activity of CytP450 and the antioxidant enzymes, SOD, POD and CAT. CytP450 activity was significantly stimulated with 1 mg kg-1 of both PHE and PY individually and significantly inhibited with 4 mg kg-1, which showed that pollution stress of PHE or PY can damage the metabolism and detoxification systems of plants. Moreover, as PHE and PY combined at 1 mg kg-1, CytP450 was increased significantly more than when PHE and PY were applied individually, which illustrates obvious synergistic effects. No significant variation were found in activity of SOD in response to individual exposure of PHE or PY in soil, but SOD activity decreased slightly in response to a combined PHE and PY exposure. Great decrease variation was found in CAT and POD activity in response to individual exposure of PHE or PY in soil. No enhanced toxic effects were shown by POD in response to a PHE and PY combined exposure, however CAT showed increased inhibition. From the aspects of metabolism and detoxification as well as antioxidant enzyme activity, our study has provided experimental basis for the pollution diagnosis of PAHs in soils at low concentrations.
Language chi
Field of Research 060702 Plant Cell and Molecular Biology
Socio Economic Objective 960504 Ecosystem Assessment and Management of Farmland, Arable Cropland and Permanent Cropland Environments
HERDC Research category C1.1 Refereed article in a scholarly journal
HERDC collection year 2009
Copyright notice ©2009, Kexue Chubanshe
Persistent URL http://hdl.handle.net/10536/DRO/DU:30032672

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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