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http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2400| Decrease of Arabidopsis PAO activity entails increased RBOH activity, ROS content and altered responses to Pseudomonas | |
| FRANCISCO IGNACIO JASSO ROBLES María Elisa González Fernando Luis Pieckenstain José Miguel Ramírez García María de la Luz Guerrero González JUAN FRANCISCO JIMENEZ BREMONT Margarita Rodríguez y Domínguez Kessler | |
| En Embargo | |
| 31-12-2021 | |
| Atribución-NoComercial-SinDerivadas | |
| https://doi.org/10.1016/j.plantsci.2019.110372 | |
| Arabidopsis thaliana-Pseudomonas syringae pathosystem Hydrogen peroxide Polyamine oxidases Superoxide anion radical RBOH enzymes Spermine | |
| "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 O-2(center dot-)) 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." | |
| Elsevier | |
| 2020 | |
| Artículo | |
| Francisco Ignacio Jasso-Robles, María Elisa Gonzalez, Fernando Luis Pieckenstain, José Miguel Ramírez-García, María de la Luz Guerrero-González, Juan Francisco Jiménez-Bremont, Margarita Rodríguez-Kessler, Decrease of Arabidopsis PAO activity entails increased RBOH activity, ROS content and altered responses to Pseudomonas, Plant Science, Volume 292, 2020, 110372, https://doi.org/10.1016/j.plantsci.2019.110372. | |
| BIOQUÍMICA | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Publicaciones Científicas Biología Molecular |