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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2017.11.014
|2 doi
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|a pubmed24n1223.xml
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|a (NLM)29223021
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|a (PII)S0981-9428(17)30383-2
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|a DE-627
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|a eng
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|a Arfaoui, Arbia
|e verfasserin
|4 aut
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|a Pre-treatment of soybean plants with calcium stimulates ROS responses and mitigates infection by Sclerotinia sclerotiorum
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|c 2018
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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 26.12.2017
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier Masson SAS. All rights reserved.
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|a Considering the high incidence of white mold caused by Sclerotinia sclerotiorum in a variety of field crops and vegetables, different control strategies are needed to keep the disease under economical threshold. This study assessed the effect of foliar application of a calcium formulation on disease symptoms, oxalic acid production, and on the oxidative stress metabolism in soybean plants inoculated with each of two isolates of the pathogen that have contrasting aggressiveness (HA, highly-aggressive versus WA, weakly-aggressive). Changes in reactive oxygen species (ROS) levels in soybean plants inoculated with S. sclerotiorum isolates were assessed at 6, 24, 48 and 72 h post inoculation (hpi). Generation of ROS including hydrogen peroxide (H2O2), anion superoxide (O2-) and hydroxyl radical (OH) was evaluated. Inoculation with the WA isolate resulted in more ROS accumulation compared to the HA isolate. Pre-treatment with the calcium formulation restored ROS production in plants inoculated with the HA isolate. We also noted a marked decrease in oxalic acid content in the leaves inoculated with the HA isolate in presence of calcium, which coincided with an increase in plant ROS production. The expression patterns of genes involved in ROS detoxification in response to the calcium treatments and/or inoculation with S. Sclerotiorum isolates were monitored by RT-qPCR. All of the tested genes showed a higher expression in response to inoculation with the WA isolate. The expression of most genes tested peaked at 6 hpi, which preceded ROS accumulation in the soybean leaves. Overall, these data suggest that foliar application of calcium contributes to a decrease in oxalic acid production and disease, arguably via modulation of the ROS metabolism
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|a Journal Article
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|a Calcium formulation
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|a Gene expression
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|a Oxidative stress markers
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|a ROS
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|a Sclerotinia sclerotiorum
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|a Soybean
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|a Reactive Oxygen Species
|2 NLM
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|a Calcium
|2 NLM
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|a SY7Q814VUP
|2 NLM
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|a El Hadrami, Abdelbasset
|e verfasserin
|4 aut
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|a Daayf, Fouad
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 122(2018) vom: 08. Jan., Seite 121-128
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:122
|g year:2018
|g day:08
|g month:01
|g pages:121-128
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|u http://dx.doi.org/10.1016/j.plaphy.2017.11.014
|3 Volltext
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