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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/jpy.12881
|2 doi
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|a pubmed24n0989.xml
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|a (DE-627)NLM296818186
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|a (NLM)31062364
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Zheng, Zhenbing
|e verfasserin
|4 aut
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| 245 |
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|a High salt stress in the upper part of floating mats of Ulva prolifera, a species that causes green tides, enhances non-photochemical quenching
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 08.05.2020
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|a Date Revised 08.05.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 Phycological Society of America.
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|a Salt stress is a major abiotic stress factor that can induce many adverse effects on photosynthetic organisms. Plants and algae have developed several mechanisms that help them respond to adverse environments. Non-photochemical quenching (NPQ) is one of these mechanisms. The thalli of algae in the intertidal zone that are attached to rocks can be subjected to salt stress for a short period of time due to the rise and fall of the tide. Ulva prolifera causes green tides and can form floating mats when green tides occur and the upper part of the thalli is subjected to high salt stress for a long period of time. In this study, we compared the Ulva prolifera photosynthetic activities and NPQ kinetics when it is subjected to different salinities over various periods of time. Thalli exposed to a salinity of 90 for 4 d showed enhanced NPQ, and photosynthetic activities decreased from 60 min after exposure up to 4 d. This indicated that the induction of NPQ in Ulva prolifera under salt stress was closely related to the stressing extent and stressing time. The enhanced NPQ in the treated samples exposed for 4 d may explain why the upper layer of the floating mats formed by Ulva prolifera thalli were able to survive in the harsh environment. Further inhibitor experiments demonstrated that the enhanced NPQ was xanthophyll cycle and transthylakoid proton gradient-dependent. However, photosystem II subunit S and light-harvesting complex stress-related protein didn't over accumulate and may not be responsible for the enhanced NPQ
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Ulva prolifera
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4 |
|a Fv/Fm
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|a green tide
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| 650 |
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|a non-photochemical quenching
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|a salt stress
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| 650 |
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|a Photosystem II Protein Complex
|2 NLM
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| 700 |
1 |
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|a Gao, Shan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Guangce
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 55(2019), 5 vom: 06. Okt., Seite 1041-1049
|w (DE-627)NLM098182994
|x 1529-8817
|7 nnns
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| 773 |
1 |
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|g volume:55
|g year:2019
|g number:5
|g day:06
|g month:10
|g pages:1041-1049
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|u http://dx.doi.org/10.1111/jpy.12881
|3 Volltext
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