2026-08-23T18:23:03Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/101082025-01-31T01:05:23Zcom_10259_4313com_10259_5086com_10259_2604col_10259_4314
Repositorio Institucional de la Universidad de Burgos
author
Santamaría Fernández, Mª Estrella
author
Arnáiz Alonso, Ana
author
Velasco Arroyo, Blanca
author
Grbic, Vojislava
author
Diaz, Isabel
author
Martínez, Manuel
2025-01-30T13:10:46Z
2025-01-30T13:10:46Z
2018
http://hdl.handle.net/10259/10108
10.1038/s41598-018-27904-1
2045-2322
Reactive oxygen species (ROS) are molecules that play a prominent role in plant response to numerous stresses, including plant interactions with herbivores. Previous findings indicate that Arabidopsis plants showed an increase in H2O2 accumulation after Tetranychus urticae infestation. Despite its importance, no information has been reported on the relationships between ROS-metabolizing systems and the spider mite-triggered plant-induced responses. In this work, four ROS-related genes that were differentially expressed between the resistant Bla-2 and the susceptible Kon Arabidopsis accessions were selected for the analysis. These genes encode proteins putatively involved in the generation (BBE22) and degradation (GPX7 and GSTU4) of H2O2, and in the degradation of ascorbate (AO). Overexpressing BBE22 and silencing GPX7, GSTU4 and AO resulted in higher leaf damage and better mite performance relative to the wild-type plants. Minor effects on H2O2 accumulation obscure major effects on the expression of genes related to ROS-metabolism and JA and SA signaling pathways, and on ROS-related enzymatic activities. In conclusion, the integration of ROS and ROS-related compounds and enzymes in the response of Arabidopsis to the spider mite T. urticae was confirmed. However, the complex network involved in ROS signaling makes difficult to predict the impact of a specific genetic manipulation.
eng
Atribución 4.0 Internacional
Herbivory
Plant signalling
Arabidopsis response to the spider mite Tetranychus urticae depends on the regulation of reactive oxygen species homeostasis
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/10108/1/Santamar%c3%ada-sr_2018.pdf
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Santamaría-sr_2018.pdf