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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2018.03.007
|2 doi
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|a pubmed25n0941.xml
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|a (DE-627)NLM282540350
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|a (NLM)29604535
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|a (PII)S0176-1617(18)30056-7
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Tamás, Ladislav
|e verfasserin
|4 aut
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|a L-NAME decreases the amount of nitric oxide and enhances the toxicity of cadmium via superoxide generation in barley root tip
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|c 2018
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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 20.09.2018
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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 © 2018 Elsevier GmbH. All rights reserved.
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|a Exposure of barley roots to mM concentrations of L-NAME for 30 min caused a considerable root growth inhibition in a dose-dependent manner. The inhibition of root growth was higher in seedlings co-treated with Cd and L-NAME, compared with roots treated with Cd alone, despite the fact that L-NAME markedly reduced the uptake of Cd by roots. Treatment of roots with L-NAME evoked a decrease in NO level in both control and Cd-treated root tips only after a relatively long lag period, which overlaps with an increase in superoxide and H2O2 levels and peroxynitrite generation. L-NAME-induced root growth inhibition is alleviated not only by the application of the NO donor SNP but also by the ROS and peroxynitrite scavengers. Our results indicate that L-NAME, a NOS inhibitor in the animal kingdom, indeed evokes NO depletion also in the plant tissues; however, it does not occur due to the action of L-NAME as an inhibitor of NOS or NOS-like activity, but as a consequence of L-NAME-induced enhanced superoxide generation, leading to increased peroxynitrite level in the root tips due to the reaction between superoxide and NO
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|a Journal Article
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|a Barley
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|a Cadmium
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|a Nitric oxide
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|a Reactive oxygen species
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|a Root growth
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|a Reactive Oxygen Species
|2 NLM
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|a Cadmium
|2 NLM
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|a 00BH33GNGH
|2 NLM
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|a Superoxides
|2 NLM
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|a 11062-77-4
|2 NLM
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|a Nitric Oxide
|2 NLM
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|a 31C4KY9ESH
|2 NLM
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| 650 |
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|a Arginine
|2 NLM
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| 650 |
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|a 94ZLA3W45F
|2 NLM
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| 650 |
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|a NG-Nitroarginine Methyl Ester
|2 NLM
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| 650 |
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|a V55S2QJN2X
|2 NLM
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| 700 |
1 |
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|a Demecsová, Loriana
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zelinová, Veronika
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 224-225(2018) vom: 01. Mai, Seite 68-74
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:224-225
|g year:2018
|g day:01
|g month:05
|g pages:68-74
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|u http://dx.doi.org/10.1016/j.jplph.2018.03.007
|3 Volltext
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|d 224-225
|j 2018
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|h 68-74
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