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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/ern025
|2 doi
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|a pubmed24n0597.xml
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|a (DE-627)NLM179157256
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|a (NLM)18436547
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Avila, Emily L
|e verfasserin
|4 aut
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| 245 |
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|a Expression analysis of Arabidopsis vacuolar sorting receptor 3 reveals a putative function in guard cells
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|c 2008
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 24.06.2008
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Vacuolar sorting receptors (VSRs) are responsible for the proper targeting of soluble cargo proteins to their destination compartments. The Arabidopsis genome encodes seven VSRs. In this work, the spatio-temporal expression of one of the members of this gene family, AtVSR3, was determined by RT-PCR and promoter::reporter gene fusions. AtVSR3 was expressed specifically in guard cells. Consequently, a reverse genetics approach was taken to determine the function of AtVSR3 by using RNA interference (RNAi) technology. Plants expressing little or no AtVSR3 transcript had a compressed life cycle, bolting approximately 1 week earlier and senescing up to 2 weeks earlier than the wild-type parent line. While the development and distribution of stomata in AtVSR3 RNAi plants appeared normal, stomatal function was altered. The guard cells of mutant plants did not close in response to abscisic acid treatment, and the mean leaf temperatures of the RNAi plants were on average 0.8 degrees C lower than both wild type and another vacuolar sorting receptor mutant, atvsr1-1. Furthermore, the loss of AtVSR3 protein caused the accumulation of nitric oxide and hydrogen peroxide, signalling molecules implicated in the regulation of stomatal opening and closing. Finally, proteomics and western blot analyses of cellular proteins isolated from wild-type and AtVSR3 RNAi leaves showed that phospholipase Dgamma, which may play a role in abscisic acid signalling, accumulated to higher levels in AtVSR3 RNAi guard cells. Thus, AtVSR3 may play an important role in responses to plant stress
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Receptors, Cytoplasmic and Nuclear
|2 NLM
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| 650 |
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|a VSR3 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Nitric Oxide
|2 NLM
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| 650 |
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|a 31C4KY9ESH
|2 NLM
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| 650 |
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|a Abscisic Acid
|2 NLM
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| 650 |
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7 |
|a 72S9A8J5GW
|2 NLM
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| 650 |
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|a Hydrogen Peroxide
|2 NLM
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| 650 |
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7 |
|a BBX060AN9V
|2 NLM
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| 700 |
1 |
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|a Brown, Michelle
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pan, Songqin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Desikan, Radhika
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Neill, Steven J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Girke, Thomas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Surpin, Marci
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Raikhel, Natasha V
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 59(2008), 6 vom: 01., Seite 1149-61
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:59
|g year:2008
|g number:6
|g day:01
|g pages:1149-61
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/ern025
|3 Volltext
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|d 59
|j 2008
|e 6
|b 01
|h 1149-61
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