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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2009.06.012
|2 doi
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|a pubmed24n0634.xml
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|a (DE-627)NLM190228377
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|a (NLM)19631407
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Tanou, Georgia
|e verfasserin
|4 aut
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|a Hydrogen peroxide- and nitric oxide-induced systemic antioxidant prime-like activity under NaCl-stress and stress-free conditions in citrus plants
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|c 2009
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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 12.01.2010
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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 We tested whether pre-treatments of roots with H(2)O(2) (10mM for 8h) or sodium nitroprusside (SNP; 100microM for 48h), a donor of ()NO, could induce prime antioxidant defense responses in the leaves of citrus plants grown in the absence or presence of 150mM NaCl for 16d. Both root pre-treatments increased leaf superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) activities, and induced related-isoform(s) expression under non-NaCl-stress conditions. When followed by salinity, certain enzymatic activities also exhibited an up-regulation in response to H(2)O(2) or SNP pre-exposure. An NaCl-stress-provoked decrease in the ascorbate redox state was partially prevented by both pre-treatments, whereas the glutathione redox state under normal and NaCl-stress conditions was increased by SNP. Real-time imaging of ()NO production was found in vascular tissues and epidermal cells. Furthermore, NaCl-induced inhibition in ()OH scavenging activity and promotion of ()OH-mediated DNA strand cleavage was partially prevented by SNP. Moreover, NaCl-dependent protein oxidation (carbonylation) was totally reversed by both pre-treatments as revealed by quantitative assay and protein blotting analysis. These results provide strong evidence that H(2)O(2) and ()NO elicit long-lasting systemic primer-like antioxidant activity in citrus plants under physiological and NaCl-stress conditions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Antioxidants
|2 NLM
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|a Free Radical Scavengers
|2 NLM
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|a Nitric Oxide Donors
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Nitroprusside
|2 NLM
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|a 169D1260KM
|2 NLM
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|a Sodium Chloride
|2 NLM
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|a 451W47IQ8X
|2 NLM
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|a Hydrogen Peroxide
|2 NLM
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|a BBX060AN9V
|2 NLM
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|a Molassiotis, Athanassios
|e verfasserin
|4 aut
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|a Diamantidis, Grigorios
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 166(2009), 17 vom: 15. Nov., Seite 1904-13
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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|g volume:166
|g year:2009
|g number:17
|g day:15
|g month:11
|g pages:1904-13
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|u http://dx.doi.org/10.1016/j.jplph.2009.06.012
|3 Volltext
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|d 166
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|h 1904-13
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