Back to Search
Start Over
An Arabidopsis TIR-Lectin Two-Domain Protein Confers Defense Properties against Tetranychus urticae
An Arabidopsis TIR-Lectin Two-Domain Protein Confers Defense Properties against Tetranychus urticae
- Source :
- Plant Physiology. 179:1298-1314
- Publication Year :
- 2019
- Publisher :
- Oxford University Press (OUP), 2019.
-
Abstract
- Plant immunity depends on fast and specific transcriptional reprogramming triggered by the perception of biotic stresses. Numerous studies have been conducted to better understand the response of plants to the generalist herbivore two-spotted spider mite (Tetranychus urticae). However, how plants perceive mites and how this perception is translated into changes in gene expression are largely unknown. In this work, we identified a gene induced in Arabidopsis (Arabidopsis thaliana) upon spider mite attack that encodes a two-domain protein containing predicted lectin and Toll/Interleukin-1 receptor domains. The gene, previously named PP2-A5, belongs to the Phloem Protein2 family. Biotic assays showed that PP2-A5 confers tolerance to T. urticae. Overexpression or knockout of PP2-A5 leads to transcriptional reprogramming that alters the balance of hormone accumulation and corresponding signaling pathways. The nucleocytoplasmic location of this protein supports a direct interaction with regulators of gene transcription, suggesting that the combination of two putative signaling domains in a single protein may provide a novel mechanism for regulating gene expression. Together, our results suggest that PP2-A5 improves the ability to defend against T. urticae by participating in the tight regulation of hormonal cross talk upon mite feeding. Further research is needed to determine the mechanism by which this two-domain protein functions and to clarify its molecular role in signaling following a spider mite attack.
- Subjects :
- 0106 biological sciences
Physiology
Research Articles - Focus Issue
Glucosinolates
Protein domain
Arabidopsis
Plant Science
01 natural sciences
Spider mite
Gene expression
Genetics
Animals
Arabidopsis thaliana
Herbivory
Tetranychus urticae
Gene
biology
Arabidopsis Proteins
Intracellular Signaling Peptides and Proteins
biology.organism_classification
Cell biology
Female
Signal transduction
Tetranychidae
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15322548 and 00320889
- Volume :
- 179
- Database :
- OpenAIRE
- Journal :
- Plant Physiology
- Accession number :
- edsair.doi.dedup.....ab776324cd8c212e2e60bad8751a4c99
- Full Text :
- https://doi.org/10.1104/pp.18.00951