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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2021.02.048
|2 doi
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|a pubmed24n1078.xml
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|a (DE-627)NLM323546749
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|a (NLM)33799186
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|a (PII)S0981-9428(21)00121-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Pirooz, Pariya
|e verfasserin
|4 aut
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|a Silicon- induced nitric oxide burst modulates systemic defensive responses of Salvia officinalis under copper toxicity
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|c 2021
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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 27.04.2021
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|a Date Revised 27.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier Masson SAS. All rights reserved.
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|a In this study, the role of nitric oxide (NO) burst in modulating Si-induced defensive responses in leaves and roots of Salvia officinalis under copper (Cu) stress were investigated. The result showed that 400 μM Cu markedly reduced shoot dry weight, but increased electrolyte leakage (EL) in leaves and both Si and sodium nitroprusside (SNP as the NO donor) improved these attributes in a dose-dependent manner. Interestingly, Cu toxicity systemically boosted a NO burst in both roots and shoots and applying Si and SNP markedly intensified it. The application of Si and SNP alone as well as their combination improved growth parameters and systemically alleviated Cu-induced lipid peroxidation and H2O2 accumulation through lowering Cu accumulation, increasing proline content, enhancing the activities of catalase (CAT) and superoxide dismutase (SOD) in both roots and leaves and up-regulating expression of SOD gene in leaves of S. officinalis. NO generation was substantially arrested and the responses induced by Si were significantly suppressed by pretreatment with 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxy l-3-oxide (cPTIO) as a NO scavenger, Nx-Nitro- L-arginine methyl ester hydrochloride (L-NAME) as a nitric oxide synthase inhibitor, and tungstate as a nitrate reductase inhibitor. These novel results indicate that Si can induce Cu tolerance through triggering NO generation which systemically modulates defensive reactions in both roots and leaves of Salvia officinalis
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|a Journal Article
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|a Copper toxicity
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|a Nitrate reductase
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|a Nitric oxide
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|a Nitric oxide synthase
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|a Salvia officinalis, silicon
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|a Antioxidants
|2 NLM
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|a Nitroprusside
|2 NLM
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|a 169D1260KM
|2 NLM
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|a Nitric Oxide
|2 NLM
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|a 31C4KY9ESH
|2 NLM
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|a Copper
|2 NLM
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|a 789U1901C5
|2 NLM
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|a Hydrogen Peroxide
|2 NLM
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|a BBX060AN9V
|2 NLM
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|a Silicon
|2 NLM
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|a Z4152N8IUI
|2 NLM
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1 |
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|a Amooaghaie, Rayhaneh
|e verfasserin
|4 aut
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|a Ahadi, Alimohammad
|e verfasserin
|4 aut
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|a Sharififar, Fariba
|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 162(2021) vom: 01. Mai, Seite 752-761
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:162
|g year:2021
|g day:01
|g month:05
|g pages:752-761
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|u http://dx.doi.org/10.1016/j.plaphy.2021.02.048
|3 Volltext
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