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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.02.043
|2 doi
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|a pubmed25n1024.xml
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|a (DE-627)NLM307437353
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|a (NLM)32155448
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|a (PII)S0981-9428(20)30097-8
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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 Oliferuk, Sonia
|e verfasserin
|4 aut
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| 245 |
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|a Exposure to a natural nitric oxide donor negatively affects the potential influx of rubidium in potassium-starved Arabidopsis plants
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|c 2020
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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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|a Date Completed 21.07.2020
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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 © 2020 Elsevier Masson SAS. All rights reserved.
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|a Nitric oxide (NO) and potassium (K+) exert a profound influence on the acclimation of plants to multiple stress conditions. A recent report indicated that exogenous addition of an NO donor causes, under conditions of adequate K+ supply, a detrimental effect on K+ status. It remains unknown whether an exogenous NO source could negatively affect the potential capture of this element when plants are faced with a K+ shortage. In this work we offer evidence that, under conditions of K+-deprivation, the addition of the naturally occurring NO donor, S-nitrosoglutathione (GSNO), diminishes the potential inward transport of the K+-analogue rubidium (Rb+) from diluted Rb+ concentrations in Arabidopsis thaliana. Studies with the akt1-2 mutant, lacking the AKT1 inward-rectifier K+-channel involved in K+-uptake, unveiled that the effect of GSNO on Rb+-influx involves a non-AKT1 component. In addition, exposure to the NO-donor led to down-regulation of transcripts coding for the AtHAK5 K+-transporter, a major component of the K+-transport machinery in K+-deprived plants. Moreover, studies with the hak5 mutant showed that GSNO could either stimulate Rb+-uptake or does not lead to a significant effect on Rb+-uptake relative to -K+ and to -K+ in the presence of decayed GSNO, respectively, thus indicating that the presence of AtHAK5 is required for GSNO exerting an inhibitory effect
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|a Journal Article
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|a Arabidopsis thaliana
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|a AtHAK5
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|a Nitric oxide
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|a Potassium
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|a S-nitrosoglutathione
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|a Uptake
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|a Arabidopsis Proteins
|2 NLM
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|a Nitric Oxide Donors
|2 NLM
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| 650 |
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|a S-Nitrosoglutathione
|2 NLM
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| 650 |
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|a 57564-91-7
|2 NLM
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| 650 |
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|a Rubidium
|2 NLM
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| 650 |
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|a MLT4718TJW
|2 NLM
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| 650 |
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|a Potassium
|2 NLM
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| 650 |
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|a RWP5GA015D
|2 NLM
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| 700 |
1 |
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|a Simontacchi, Marcela
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rubio, Francisco
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Santa-María, Guillermo E
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 150(2020) vom: 16. Mai, Seite 204-208
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
1 |
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|g volume:150
|g year:2020
|g day:16
|g month:05
|g pages:204-208
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|u http://dx.doi.org/10.1016/j.plaphy.2020.02.043
|3 Volltext
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|d 150
|j 2020
|b 16
|c 05
|h 204-208
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