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学科主题: 生物学::生物化学与分子生物学
题名:
Toxic effects of amoxicillin on the photosystem II of Synechocystis sp characterized by a variety of in vivo chlorophyll fluorescence tests
作者: Pan ; Xiangliang ; Deng ; Chunnuan ; Zhang ; Daoyong ; Wang ; Jianlong ; Mu ; Guijin ; Chen ; Ying
通讯作者: Zhang, DY, Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 46 Guanshui Rd, Guiyang 550002, Peoples R China
关键词: OXYGEN EVOLUTION ; ANTENNA SIZE ; HETEROGENEITY ; PHOTOSYNTHESIS ; FATE ; ENVIRONMENT ; INHIBITION ; CENTERS ; LEAVES ; AGENTS
刊名: AQUATIC TOXICOLOGY
发表日期: 2008
卷: 89, 期:4, 页:207-213
收录类别: SCI
部门归属: [Pan, Xiangliang; Zhang, Daoyong] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China; [Pan, Xiangliang; Zhang, Daoyong; Mu, Guijin] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; [Deng, Chunnuan] Chinese Acad Sci, NE Inst Geog & Agr Ecology, Changchun 130012, Peoples R China; [Deng, Chunnuan; Chen, Ying] Yunnan Normal Univ, Kunming 650092, Peoples R China; [Wang, Jianlong] Tsinghua Univ, Inst Nucl Energy & Technol, Beijing 100083, Peoples R China
摘要: Amoxicillin is one of the widely used antibiotics of environmental concern. This study shows that amoxicillin has toxic effects on the photosynthesis of Synechocystis sp. Its inhibitory effects on photosystem II (PSII) of Synechocystis sp. were investigated by using a variety of in vivo chlorophyll fluorescence tests. The inhibitory effects of amoxicillin on PSII activity of Synechocystis sp. are concentration-dependent. Amoxicillin exposure leads to slowing down of electron transport on both donor side and acceptor side and causes accumulation of P680(+). QA(-) reoxidation test revealed that amoxicillin hinders electron transfer from QA(-) to QB/QB(-) and more QA(-) is oxidized through S-2(Q(A)Q(B))(-) charge recombination. Analysis of PSII heterogeneity demonstrated that an exposure to amoxicillin increases the proportion of inactive PSII (PSIIx) centers and the proportion of PSII centers with small antenna (PSII beta). These changes finally result in deterioration of full photosynthesis performance. (C) 2008 Elsevier B.V. All rights reserved.
内容类型: 期刊论文
URI标识: http://ir.xjlas.org/handle/365004/10226
Appears in Collections:中国科学院新疆生态与地理研究所(2010年以前数据)_期刊论文

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Recommended Citation:
Pan,Xiangliang,Deng,et al. Toxic effects of amoxicillin on the photosystem II of Synechocystis sp characterized by a variety of in vivo chlorophyll fluorescence tests[J]. AQUATIC TOXICOLOGY,2008,89(4):207-213.
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