Effects of levofloxacin hydrochlordie on photosystem II activity and heterogeneity of Synechocystis sp.

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Effects of levofloxacin hydrochlordie on photosystem II activity and heterogeneity of Synechocystis sp.
	Pan ; Xiangliang ; Zhang ; Daoyong ; Chen ; Xi ; Mu ; Guijin ; Li ; Lanhai ; Bao ; Anming
刊名	CHEMOSPHERE
	2009
卷号	77 期号:3 页码:413-418
关键词	FLUORESCENCE TRANSIENT AQUATIC ENVIRONMENT PHARMACEUTICALS PHOTOSYNTHESIS INHIBITION CENTERS GROWTH ALPHA
ISSN号	0045-6535
通讯作者	Zhang, DY, Chinese Acad Sci, Xinjiang Key Lab Water Cycle & Utilizat Arid Zone, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
中文摘要	Effects of LH on photosynthesis of Synechocystis sp. were investigated by a variety of in vivo chlorophyll fluorescence. O-2 evolution and the photosystem II (PSII) activity were clearly inhibited by LH. Exposure to LH increased the proportion of PSII beta and this weakened the connectivity between PS11 units and hindered excitation energy-transfer between PSII units. LH decreased the density of the active photosynthetic reaction centers, inhibited electron transport, and increased the dissipated energy flux per reaction center. The inhibitory effect of LH on Q(A)(-) reoxidation process could be divided into several stages. LH first inhibited the electron transfer from Q(A)(-) to Q(B) by weakening the connectivity between Q(A)(-) and Q(B), and PQ binding began taking part in Q(A)(-) reoxidation. At the second stage, the connectivity between Q(A)(-) and PQ pool was broken and inhibition on PQ binding occurred. At this stage, some Q(A)(-) began to be oxidized by S-2(Q(A)Q(B))(-). Finally, when the connectivity between Q(A)(-) and Q(B) and PQ was completely broken, all Q(A)(-) was oxidized through charge recombination. (C) 2009 Elsevier Ltd. All rights reserved.
学科主题	生物化学与分子生物学
收录类别	SCI
公开日期	2011-08-19
内容类型	期刊论文
源URL	[http://ir.xjlas.org/handle/365004/10068]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Pan,Xiangliang,Zhang,et al. Effects of levofloxacin hydrochlordie on photosystem II activity and heterogeneity of Synechocystis sp.[J]. CHEMOSPHERE,2009,77(3):413-418.
APA	Pan.,Xiangliang.,Zhang.,Daoyong.,Chen.,...&Anming.(2009).Effects of levofloxacin hydrochlordie on photosystem II activity and heterogeneity of Synechocystis sp..CHEMOSPHERE,77(3),413-418.
MLA	Pan,et al."Effects of levofloxacin hydrochlordie on photosystem II activity and heterogeneity of Synechocystis sp.".CHEMOSPHERE 77.3(2009):413-418.