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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2019.110372
|2 doi
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|a pubmed25n1019.xml
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|a (DE-627)NLM306010321
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|a (NLM)32005378
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|a (PII)S0168-9452(19)31545-6
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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 Jasso-Robles, Francisco Ignacio
|e verfasserin
|4 aut
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| 245 |
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|a Decrease of Arabidopsis PAO activity entails increased RBOH activity, ROS content and altered responses to Pseudomonas
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|c 2020
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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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| 500 |
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|a Date Completed 31.08.2020
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|a Date Revised 03.01.2025
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019 Elsevier B.V. All rights reserved.
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|a Polyamines (PAs) are small aliphatic amines with important regulatory activities in plants. Biotic stress results in changes in PA levels due to de novo synthesis and PA oxidation. In Arabidopsis thaliana five FAD-dependent polyamine oxidase enzymes (AtPAO1-5) participate in PA back-conversion and degradation. PAO activity generates H2O2, an important molecule involved in cell signaling, elongation, programmed cell death, and defense responses. In this work we analyzed the role of AtPAO genes in the Arabidopsis thaliana-Pseudomonas syringae pathosystem. AtPAO1 and AtPAO2 genes were transcriptionally up-regulated in infected plants. Atpao1-1 and Atpao2-1 single mutant lines displayed altered responses to Pseudomonas, and an increased susceptibility was found in the double mutant Atpao1-1 x Atpao2-1. These polyamine oxidases mutant lines showed disturbed contents of ROS (H2O2 and O2-) and altered activities of RBOH, CAT and SOD enzymes both in infected and control plants. In addition, changes in the expression levels of AtRBOHD, AtRBOHF, AtPRX33, and AtPRX34 genes were also noticed. Our data indicate an important role for polyamine oxidases in plant defense and ROS homeostasis
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|a Journal Article
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|a Arabidopsis thaliana-Pseudomonas syringae pathosystem
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|a Hydrogen peroxide
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|a Polyamine oxidases
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|a RBOH enzymes
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|a Spermine
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|a Superoxide anion radical
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|a Arabidopsis Proteins
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|a Reactive Oxygen Species
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|a Oxidoreductases Acting on CH-NH2 Group Donors
|2 NLM
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|a EC 1.4.-
|2 NLM
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|a AT5G13700 protein, Arabidopsis
|2 NLM
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|a EC 1.5.-
|2 NLM
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|a Oxidoreductases Acting on CH-NH Group Donors
|2 NLM
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| 650 |
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|a EC 1.5.-
|2 NLM
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| 650 |
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|a PAO2 protein, Arabidopsis
|2 NLM
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| 650 |
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|a EC 1.5.-
|2 NLM
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|a AT5G47910 protein, Arabidopsis
|2 NLM
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|a EC 1.6.-
|2 NLM
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|a NADPH Oxidases
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|a EC 1.6.3.-
|2 NLM
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| 700 |
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|a Gonzalez, María Elisa
|e verfasserin
|4 aut
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|a Pieckenstain, Fernando Luis
|e verfasserin
|4 aut
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| 700 |
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|a Ramírez-García, José Miguel
|e verfasserin
|4 aut
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| 700 |
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|a Guerrero-González, María de la Luz
|e verfasserin
|4 aut
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|a Jiménez-Bremont, Juan Francisco
|e verfasserin
|4 aut
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| 700 |
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|a Rodríguez-Kessler, Margarita
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 292(2020) vom: 01. März, Seite 110372
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnas
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| 773 |
1 |
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|g volume:292
|g year:2020
|g day:01
|g month:03
|g pages:110372
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|u http://dx.doi.org/10.1016/j.plantsci.2019.110372
|3 Volltext
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|d 292
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