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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2018.11.018
|2 doi
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|a pubmed24n0970.xml
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|a (DE-627)NLM291136486
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|a (NLM)30482504
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|a (PII)S0981-9428(18)30517-5
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Rodrigues-Corrêa, Kelly Cristine da Silva
|e verfasserin
|4 aut
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| 245 |
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|a Mimosine accumulation in Leucaena leucocephala in response to stress signaling molecules and acute UV exposure
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|c 2019
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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 22.01.2019
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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 Masson SAS. All rights reserved.
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|a Mimosine is a non-protein amino acid of Fabaceae, such as Leucaena spp. and Mimosa spp. Several relevant biological activities have been described for this molecule, including cell cycle blocker, anticancer, antifungal, antimicrobial, herbivore deterrent and allelopathic activities, raising increased economic interest in its production. In addition, information on mimosine dynamics in planta remains limited. In order to address this topic and propose strategies to increase mimosine production aiming at economic uses, the effects of several stress-related elicitors of secondary metabolism and UV acute exposure were examined on mimosine accumulation in growth room-cultivated seedlings of Leucaena leucocephala spp. glabrata. Mimosine concentration was not significantly affected by 10 ppm salicylic acid (SA) treatment, but increased in roots and shoots of seedlings treated with 84 ppm jasmonic acid (JA) and 10 ppm Ethephon (an ethylene-releasing compound), and in shoots treated with UV-C radiation. Quantification of mimosine amidohydrolase (mimosinase) gene expression showed that ethephon yielded variable effect over time, whereas JA and UV-C did not show significant impact. Considering the strong induction of mimosine accumulation by acute UV-C exposure, additional in situ ROS localization, as well as in vitro antioxidant assays were performed, suggesting that, akin to several secondary metabolites, mimosine may be involved in general oxidative stress modulation, acting as a hydrogen peroxide and superoxide anion quencher
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|a Journal Article
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|a Ethylene
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|a Jasmonic acid
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|a Leucaena leucocephala
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|a Mimosine
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|a Mimosine amidohydrolase
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|a Salicylic acid
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|a UV-C radiation
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|a Antioxidants
|2 NLM
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|a Cyclopentanes
|2 NLM
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|a Organophosphorus Compounds
|2 NLM
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|a Oxylipins
|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 Mimosine
|2 NLM
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|a 500-44-7
|2 NLM
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| 650 |
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|a jasmonic acid
|2 NLM
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| 650 |
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|a 6RI5N05OWW
|2 NLM
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|a Hydrogen Peroxide
|2 NLM
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|a BBX060AN9V
|2 NLM
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|a Salicylic Acid
|2 NLM
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| 650 |
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|a O414PZ4LPZ
|2 NLM
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| 650 |
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|a ethephon
|2 NLM
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| 650 |
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|a XU5R5VQ87S
|2 NLM
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| 700 |
1 |
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|a Honda, Michael D H
|e verfasserin
|4 aut
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1 |
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|a Borthakur, Dulal
|e verfasserin
|4 aut
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|a Fett-Neto, Arthur Germano
|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 135(2019) vom: 15. Feb., Seite 432-440
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:135
|g year:2019
|g day:15
|g month:02
|g pages:432-440
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|u http://dx.doi.org/10.1016/j.plaphy.2018.11.018
|3 Volltext
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|d 135
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|h 432-440
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