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231224s2009 xx |||||o 00| ||eng c |
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|a 10.1111/j.1529-8817.2009.00647.x
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|a eng
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|a Pan, Xiangliang
|e verfasserin
|4 aut
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| 245 |
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|a EFFECT OF CHROMIUM(VI) ON PHOTOSYSTEM II ACTIVITY AND HETEROGENEITY OF SYNECHOCYSTIS SP. (CYANOPHYTA)
|b STUDIED WITH IN VIVO CHLOROPHYLL FLUORESCENCE TESTS(1)
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|c 2009
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|a Text
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|a ƒaComputermedien
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|a Date Completed 04.04.2016
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|a Date Revised 01.04.2016
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a © 2009 Phycological Society of America.
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|a The inhibitory effect of Cr(VI) on the PSII of Synechocystis sp. was studied. Cr(VI) reduced O2 evolution and inhibited the water-splitting system in PSII. S-states test and flash induction test showed that Cr(VI) exposure increased the proportion of inactivated PSII (PSIIX ) and PSIIβ reaction centers, which increased the fluxes of dissipated energy. JIP test and QA (-) reoxidation test demonstrated that Cr(VI) treatment induces inhibition of electron transport from QA (-) to QB /QB (-) and accumulation of P680 (+) . More QA (-) had to be oxidized through S2 (QA QB )(-) charge recombination and oxidation by PQ9 molecules in PSII under Cr(VI) stress. These changes finally decreased the index of photosynthesis performance
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|a Journal Article
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|a Synechocystis sp.
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|a antenna heterogeneity
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|a chromate
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|a in vivo chlorophyll fluorescence
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|a photosystem II
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|a Chen, Xi
|e verfasserin
|4 aut
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|a Zhang, Daoyong
|e verfasserin
|4 aut
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|a Wang, Jianlong
|e verfasserin
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|a Deng, Chunnuan
|e verfasserin
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|a Mu, Guijin
|e verfasserin
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|a Zhu, Huaisong
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 45(2009), 2 vom: 19. Apr., Seite 386-94
|w (DE-627)NLM098182994
|x 0022-3646
|7 nnns
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|g volume:45
|g year:2009
|g number:2
|g day:19
|g month:04
|g pages:386-94
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|u http://dx.doi.org/10.1111/j.1529-8817.2009.00647.x
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