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学科主题: Environmental Sciences
题名: Responses of Synechocystis sp PCC 6803 (cyanobacterium) photosystem II to pyrene stress
作者: Shao, Jihai1, 2, 3; Yu, Gongliang1; Wu, Zhongxing1; Peng, Xin1; Li, Renhui1
通讯作者: Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: pyrene ; Synechocystis ; toxicity ; photosystem II
刊名: JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
发表日期: 2010
DOI: 10.1016/S1001-0742(09)60222-9
卷: 22, 期:7, 页:1091-1095
收录类别: SCI
文章类型: Article
部门归属: [Shao, Jihai; Yu, Gongliang; Wu, Zhongxing; Peng, Xin; Li, Renhui] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shao, Jihai] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Shao, Jihai] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Key Science and Technology Program of China [2008ZX07105-006]; National Natural Science Foundation of China [30821140542]; Chinese Academy of Sciences [0823031501]
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: In order to explore the mechanism of acute toxicity for pyrene to cyanobacterial organisms, the responses of Synechocystis sp. PCC 6803 photosystem II (PS II) under pyrene stress were studied. The results showed there was no significant difference about the oxygen evolution under 0.125 mg/L pyrene stress when compared with control, but it was significantly lower than control at 0.625 mg/L pyrene. Polyphasic chlorophyll-a fluorescence transients in cells of Synechocystis sp. PCC 6803 exhibited a typical increase including O, J, I, and P phases. Fluorescence yield at phases J, I and P declined slightly at 0.125 and 0.625 mg/L pyrene, and significantly lower than control at 3.125 mg/L. According to the parameters deviated from JIP-test, no modification was induced by pyrene both at the donor side and at the acceptor side of PS II, and the reaction centre of PS II is the primary damaging target. Based on the expressing of four key genes (psbA, psbB, psbC and psbO) of PS II, only psbA showed significant difference at 3.125 mg/L pyrene when compared with control.
英文摘要: In order to explore the mechanism of acute toxicity for pyrene to cyanobacterial organisms, the responses of Synechocystis sp. PCC 6803 photosystem II (PS II) under pyrene stress were studied. The results showed there was no significant difference about the oxygen evolution under 0.125 mg/L pyrene stress when compared with control, but it was significantly lower than control at 0.625 mg/L pyrene. Polyphasic chlorophyll-a fluorescence transients in cells of Synechocystis sp. PCC 6803 exhibited a typical increase including O, J, I, and P phases. Fluorescence yield at phases J, I and P declined slightly at 0.125 and 0.625 mg/L pyrene, and significantly lower than control at 3.125 mg/L. According to the parameters deviated from JIP-test, no modification was induced by pyrene both at the donor side and at the acceptor side of PS II, and the reaction centre of PS II is the primary damaging target. Based on the expressing of four key genes (psbA, psbB, psbC and psbO) of PS II, only psbA showed significant difference at 3.125 mg/L pyrene when compared with control.
关键词[WOS]: CHLOROPHYLL-A FLUORESCENCE ; SPIRULINA-PLATENSIS ; PSII PHOTOCHEMISTRY ; OXIDATIVE STRESS ; GENE-EXPRESSION ; DROUGHT STRESS ; PSBA GENES ; D1 PROTEIN ; PLANTS ; BIOMARKER
语种: 英语
WOS记录号: WOS:000280163800019
ISSN号: 1001-0742
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13783
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China

Recommended Citation:
Shao, Jihai; Yu, Gongliang; Wu, Zhongxing; Peng, Xin; Li, Renhui.Responses of Synechocystis sp PCC 6803 (cyanobacterium) photosystem II to pyrene stress,JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2010,22(7):1091-1095
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文件名: Responses of Synechocystis sp PCC 6803 (cyanobacterium) photosystem II to pyrene stress.pdf
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