Phytophthora suppressor of RNA silencing 2 is a conserved RxLR effector that promotes infection in soybean and Arabidopsis thaliana.
Identifieur interne : 000F42 ( Main/Corpus ); précédent : 000F41; suivant : 000F43Phytophthora suppressor of RNA silencing 2 is a conserved RxLR effector that promotes infection in soybean and Arabidopsis thaliana.
Auteurs : Qin Xiong ; Wenwu Ye ; Duseok Choi ; James Wong ; Yongli Qiao ; Kai Tao ; Yuanchao Wang ; Wenbo MaSource :
- Molecular plant-microbe interactions : MPMI [ 0894-0282 ] ; 2014.
English descriptors
- KwdEn :
- Arabidopsis (cytology), Arabidopsis (immunology), Arabidopsis (microbiology), Cotyledon (cytology), Cotyledon (immunology), Cotyledon (microbiology), Disease Susceptibility (MeSH), Gene Expression (MeSH), Genes, Reporter (MeSH), Phylogeny (MeSH), Phytophthora (genetics), Phytophthora (pathogenicity), Plant Diseases (microbiology), Plant Leaves (cytology), Plant Leaves (immunology), Plant Leaves (microbiology), Plant Roots (cytology), Plant Roots (immunology), Plant Roots (microbiology), Plant Stems (cytology), Plant Stems (immunology), Plant Stems (microbiology), RNA Interference (MeSH), Recombinant Fusion Proteins (MeSH), Salicylic Acid (metabolism), Sequence Analysis, DNA (MeSH), Soybeans (cytology), Soybeans (immunology), Soybeans (microbiology), Virulence Factors (genetics), Virulence Factors (metabolism).
- MESH :
- chemical , genetics : Virulence Factors.
- chemical , metabolism : Salicylic Acid, Virulence Factors.
- chemical : Recombinant Fusion Proteins.
- cytology : Arabidopsis, Cotyledon, Plant Leaves, Plant Roots, Plant Stems, Soybeans.
- genetics : Phytophthora.
- immunology : Arabidopsis, Cotyledon, Plant Leaves, Plant Roots, Plant Stems, Soybeans.
- microbiology : Arabidopsis, Cotyledon, Plant Diseases, Plant Leaves, Plant Roots, Plant Stems, Soybeans.
- pathogenicity : Phytophthora.
- Disease Susceptibility, Gene Expression, Genes, Reporter, Phylogeny, RNA Interference, Sequence Analysis, DNA.
Abstract
The genus Phytophthora consists of notorious and emerging pathogens of economically important crops. Each Phytophthora genome encodes several hundreds of cytoplasmic effectors, which are believed to manipulate plant immune response inside the host cells. However, the majority of Phytophthora effectors remain functionally uncharacterized. We recently discovered two effectors from the soybean stem and root rot pathogen Phytophthora sojae with the activity to suppress RNA silencing in plants. These effectors are designated Phytophthora suppressor of RNA silencing (PSRs). Here, we report that the P. sojae PSR2 (PsPSR2) belongs to a conserved and widespread effector family in Phytophthora. A PsPSR2-like effector produced by P. infestans (PiPSR2) can also suppress RNA silencing in plants and promote Phytophthora infection, suggesting that the PSR2 family effectors have conserved functions in plant hosts. Using Agrobacterium rhizogenes-mediated hairy roots induction, we demonstrated that the expression of PsPSR2 rendered hypersusceptibility of soybean to P. sojae. Enhanced susceptibility was also observed in PsPSR2-expressing Arabidopsis thaliana plants during Phytophthora but not bacterial infection. These experiments provide strong evidence that PSR2 is a conserved Phytophthora effector family that performs important virulence functions specifically during Phytophthora infection of various plant hosts.
DOI: 10.1094/MPMI-06-14-0190-R
PubMed: 25387135
Links to Exploration step
pubmed:25387135Le document en format XML
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<term>Salicylic Acid (metabolism)</term>
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<front><div type="abstract" xml:lang="en">The genus Phytophthora consists of notorious and emerging pathogens of economically important crops. Each Phytophthora genome encodes several hundreds of cytoplasmic effectors, which are believed to manipulate plant immune response inside the host cells. However, the majority of Phytophthora effectors remain functionally uncharacterized. We recently discovered two effectors from the soybean stem and root rot pathogen Phytophthora sojae with the activity to suppress RNA silencing in plants. These effectors are designated Phytophthora suppressor of RNA silencing (PSRs). Here, we report that the P. sojae PSR2 (PsPSR2) belongs to a conserved and widespread effector family in Phytophthora. A PsPSR2-like effector produced by P. infestans (PiPSR2) can also suppress RNA silencing in plants and promote Phytophthora infection, suggesting that the PSR2 family effectors have conserved functions in plant hosts. Using Agrobacterium rhizogenes-mediated hairy roots induction, we demonstrated that the expression of PsPSR2 rendered hypersusceptibility of soybean to P. sojae. Enhanced susceptibility was also observed in PsPSR2-expressing Arabidopsis thaliana plants during Phytophthora but not bacterial infection. These experiments provide strong evidence that PSR2 is a conserved Phytophthora effector family that performs important virulence functions specifically during Phytophthora infection of various plant hosts.</div>
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<Abstract><AbstractText>The genus Phytophthora consists of notorious and emerging pathogens of economically important crops. Each Phytophthora genome encodes several hundreds of cytoplasmic effectors, which are believed to manipulate plant immune response inside the host cells. However, the majority of Phytophthora effectors remain functionally uncharacterized. We recently discovered two effectors from the soybean stem and root rot pathogen Phytophthora sojae with the activity to suppress RNA silencing in plants. These effectors are designated Phytophthora suppressor of RNA silencing (PSRs). Here, we report that the P. sojae PSR2 (PsPSR2) belongs to a conserved and widespread effector family in Phytophthora. A PsPSR2-like effector produced by P. infestans (PiPSR2) can also suppress RNA silencing in plants and promote Phytophthora infection, suggesting that the PSR2 family effectors have conserved functions in plant hosts. Using Agrobacterium rhizogenes-mediated hairy roots induction, we demonstrated that the expression of PsPSR2 rendered hypersusceptibility of soybean to P. sojae. Enhanced susceptibility was also observed in PsPSR2-expressing Arabidopsis thaliana plants during Phytophthora but not bacterial infection. These experiments provide strong evidence that PSR2 is a conserved Phytophthora effector family that performs important virulence functions specifically during Phytophthora infection of various plant hosts.</AbstractText>
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