Please use this identifier to cite or link to this item:
https://www.arca.fiocruz.br/handle/icict/28891
Type
ArticleCopyright
Open access
Collections
- INI - Artigos de Periódicos [3646]
Metadata
Show full item record
MAKING A BETTER HOME: MODULATION OF PLANT DEFENSIVE RESPONSE BY BREVIPALPUS MITES
Plant hormones
Defense pathways
Salicylic acid
Jasmonic acid
Cross-talk
Tetranychus
RNA-Seq
Author
Affilliation
Instituto Agronômico de Campinas. Laboratório de Biotecnologia. Centro de Citricultura Sylvio Moreira. Cordeirópolis, SP, Brazil / Universidade Estadual de Campinas. Instituto de Biologia. Campinas, SP, Brazil.
Instituto Biológico. Laboratório de Bioquímica Fitopatológica.São Paulo, SP, Brazil.
Instituto Agronômico de Campinas. Laboratório de Biotecnologia. Centro de Citricultura Sylvio Moreira. Cordeirópolis, SP, Brazil.
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica em DST/AIDS. Rio de Janeiro, RJ, Brasil.
University of California. Department of Plant Pathology. Davis, CA, USA.
Instituto Biológico, São Paulo. Laboratório de Bioquímica Fitopatológica. São Paulo, SP, Brazil / Embrapa Mandioca e Fruticultura, Cruz das Almas, São Paulo, SP, Brazil.
Instituto Agronômico de Campinas. Laboratório de Biotecnologia. Centro de Citricultura Sylvio Moreira. Cordeirópolis, SP, Brazil.
Instituto Biológico. Laboratório de Bioquímica Fitopatológica.São Paulo, SP, Brazil.
Instituto Agronômico de Campinas. Laboratório de Biotecnologia. Centro de Citricultura Sylvio Moreira. Cordeirópolis, SP, Brazil.
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica em DST/AIDS. Rio de Janeiro, RJ, Brasil.
University of California. Department of Plant Pathology. Davis, CA, USA.
Instituto Biológico, São Paulo. Laboratório de Bioquímica Fitopatológica. São Paulo, SP, Brazil / Embrapa Mandioca e Fruticultura, Cruz das Almas, São Paulo, SP, Brazil.
Instituto Agronômico de Campinas. Laboratório de Biotecnologia. Centro de Citricultura Sylvio Moreira. Cordeirópolis, SP, Brazil.
Abstract
False-spider mites of the genus Brevipalpus are highly polyphagous pests that attack hundreds of plant species of distinct families worldwide. Besides causing direct damage, these mites may also act as vectors of many plant viruses that threaten high-value ornamental plants like orchids and economically important crops such as citrus and coffee. To better understand the molecular mechanisms behind plant-mite interaction we used an RNA-Seq approach to assess the global response of Arabidopsis thaliana (Arabidopsis) plants along the course of the infestation with Brevipalpus yothersi, the main vector species within the genus. Mite infestation triggered a drastic transcriptome reprogramming soon at the beginning of the interaction and throughout the time course, deregulating 1755, 3069 and 2680 genes at 6 hours after infestation (hai), 2 days after infestation (dai), and 6 dai, respectively. Gene set enrichment analysis revealed a clear modulation of processes related to the plant immune system. Co-expressed genes correlated with specific classes of transcription factors regulating defense pathways and developmental processes. Up-regulation of defensive responses correlated with the down-regulation of growth-related processes, suggesting the triggering of the growth-defense crosstalk to optimize plant fitness. Biological processes (BPs) enriched at all time points were markedly related to defense against herbivores and other biotic stresses involving the defense hormones salicylic acid (SA) and jasmonic acid (JA). Levels of both hormones were higher in plants challenged with mites than in the non-infested ones, supporting the simultaneous induction of genes from both pathways. To further clarify the functional relevance of the plant hormonal pathways on the interaction, we evaluated the mite performance on Arabidopsis mutants impaired in SA- or JA-mediated response. Mite oviposition was lower on mutants defective in SA biosynthesis (sid2) and signaling (npr1), showing a function for SA pathway in improving the mite reproduction, an unusual mechanism compared to closely-related spider mites. Here we provide the first report on the global and dynamic plant transcriptome triggered by Brevipalpus feeding, extending our knowledge on plant-mite interaction. Furthermore, our results suggest that Brevipalpus mites manipulate the plant defensive response to render the plant more susceptible to their colonization by inducing the SA-mediated pathway.
Keywords
Plant–herbivore interactionPlant hormones
Defense pathways
Salicylic acid
Jasmonic acid
Cross-talk
Tetranychus
RNA-Seq
Share