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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2013.01.007
|2 doi
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|a pubmed24n0749.xml
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|a DE-627
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|a eng
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|a Kim, Hyun-Sung
|e verfasserin
|4 aut
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|a Cold stress causes rapid but differential changes in properties of plasma membrane H(+)-ATPase of camelina and rapeseed
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|c 2013
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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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|a Date Completed 07.11.2013
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Elsevier GmbH. All rights reserved.
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|a Camelina (Camelina sativa) and rapeseed (Brassica napus) are well-established oil-seed crops with great promise also for biofuels. Both are cold-tolerant, and camelina is regarded to be especially appropriate for production on marginal lands. We examined physiological and biochemical alterations in both species during cold stress treatment for 3 days and subsequent recovery at the temperature of 25°C for 0, 0.25, 0.5, 1, 2, 6, and 24h, with particular emphasis on the post-translational regulation of the plasma membrane (PM) H(+)-ATPase (EC3.6.3.14). The activity and translation of the PM H(+)-ATPase, as well as 14-3-3 proteins, increased after 3 days of cold stress in both species but recovery under normal conditions proceeded differently. The increase in H(+)-ATPase activity was the most dramatic in camelina roots after recovery for 2h at 25°C, followed by decay to background levels within 24h. In rapeseed, the change in H(+)-ATPase activity during the recovery period was less pronounced. Furthermore, H(+)-pumping increased in both species after 15min recovery, but to twice the level in camelina roots compared to rapeseed. Protein gel blot analysis with phospho-threonine anti-bodies showed that an increase in phosphorylation levels paralleled the increase in H(+)-transport rate. Thus our results suggest that cold stress and recovery in camelina and rapeseed are associated with PM H(+)-fluxes that may be regulated by specific translational and post-translational modifications
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
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|a Proton-Translocating ATPases
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|a EC 3.6.3.14
|2 NLM
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|a Oh, Jung-Min
|e verfasserin
|4 aut
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|a Luan, Sheng
|e verfasserin
|4 aut
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|a Carlson, John E
|e verfasserin
|4 aut
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|a Ahn, Sung-Ju
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 170(2013), 9 vom: 15. Juni, Seite 828-37
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|x 1618-1328
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