Abstract
RAR1, SGT1, and HSP90 are important components of effector-triggered immunity (ETI) in diverse plants, where RAR1 and SGT1 are thought to serve as HSP90 co-chaperones. We show that ETI in soybean requires RAR1 and SGT1 but not HSP90. Rsv1-mediated extreme resistance to Soybean mosaic virus (SMV) and Rpg-1b-mediated resistance to Pseudomonas syringae were compromised in plants silenced for GmRAR1 and GmSGT1-2 but not GmHSP90. This suggests that RAR1- or SGT1-dependant signaling is not always associated with a dependence on HSP90. Unlike in Arabidopsis, SGT1 in soybean also mediates ETI against the bacterial pathogen P. syringae. Similar to Arabidopsis, soybean RAR1 and SGT1 proteins interact with each other and two related HSP90 proteins. Plants silenced for GmHSP90 genes or GmRAR1 exhibited altered morphology, suggesting that these proteins also contribute to developmental processes. Silencing GmRAR1 and GmSGT1-2 impaired resistance to virulent bacteria and systemic acquired resistance (SAR) in soybean as well. Because the Arabidopsis rar1 mutant also showed a defect in SAR, we conclude that RAR1 and SGT1 serve as a point of convergence for basal resistance, ETI, and SAR. We demonstrate that, although soybean defense signaling pathways recruit structurally conserved components, they have distinct requirements for specific proteins.
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Claims 8
Claim · model-written summary
Soybean ETI required RAR1 and SGT1 but not HSP90.
- Taxon
- soybean
Glycine maxe0 - Gene
- RAR1 and SGT1e0
- Outcome
- ETIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ETI in soybean requires RAR1 and SGT1 but not HSP90”
Claim · model-written summary
Silencing GmRAR1 and GmSGT1-2 compromised Rsv1-mediated resistance to Soybean mosaic virus.
- Taxon
- soybeanGlycine maxt0
- Treatment
- silenced for GmRAR1 and GmSGT1-2e0
- Interactor
- Soybean mosaic virus
Soybean mosaic viruse0pathogen - Outcome
- Rsv1-mediated extreme resistance to Soybean mosaic virus (SMV)e0
- Direction
- compromisede0
- Comparator
- GmHSP90e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rsv1-mediated extreme resistance to Soybean mosaic virus (SMV) and Rpg-1b-mediated resistance to Pseudomonas syringae were compromised in plants silenced for GmRAR1 and GmSGT1-2 but not GmHSP90”
t0“Soybean”
Claim · model-written summary
Silencing GmRAR1 and GmSGT1-2 compromised resistance to Pseudomonas syringae.
- Taxon
- soybeanGlycine maxt0
- Treatment
- silenced for GmRAR1 and GmSGT1-2e0
- Interactor
- Pseudomonas syringae
Pseudomonas syringaee0pathogen - Outcome
- Rpg-1b-mediated resistance to Pseudomonas syringaee0
- Direction
- compromisede0
- Comparator
- GmHSP90e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rsv1-mediated extreme resistance to Soybean mosaic virus (SMV) and Rpg-1b-mediated resistance to Pseudomonas syringae were compromised in plants silenced for GmRAR1 and GmSGT1-2 but not GmHSP90”
t0“Soybean”
Claim · model-written summary
Soybean RAR1 and SGT1 proteins interacted with each other and two HSP90 proteins.
- Taxon
- soybeanGlycine maxe0
- Gene
- RAR1 and SGT1 proteinse0
- Outcome
- interact with each other and two related HSP90 proteinse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean RAR1 and SGT1 proteins interact with each other and two related HSP90 proteins”
Claim · model-written summary
Silencing GmHSP90 or GmRAR1 altered plant morphology.
- Taxon
- soybeanGlycine maxt0
- Treatment
- silenced for GmHSP90 genes or GmRAR1e0
- Outcome
- altered morphologye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants silenced for GmHSP90 genes or GmRAR1 exhibited altered morphology”
t0“Soybean”
Claim · model-written summary
Silencing GmRAR1 and GmSGT1-2 impaired resistance to virulent bacteria.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Silencing GmRAR1 and GmSGT1-2e0
- Interactor
- virulent bacteriae0pathogen
- Outcome
- resistance to virulent bacteriae0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silencing GmRAR1 and GmSGT1-2 impaired resistance to virulent bacteria”
t0“Soybean”
Claim · model-written summary
Silencing GmRAR1 and GmSGT1-2 impaired systemic acquired resistance.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Silencing GmRAR1 and GmSGT1-2e0
- Outcome
- systemic acquired resistance (SAR)e0
- Direction
- impairede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silencing GmRAR1 and GmSGT1-2 impaired resistance to virulent bacteria and systemic acquired resistance (SAR) in soybean”
Claim · model-written summary
The Arabidopsis rar1 mutant had a defect in systemic acquired resistance.
- Taxon
- Arabidopsis
Arabidopsise0 - Gene
- rar1e0
- Outcome
- a defect in SARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Arabidopsis rar1 mutant also showed a defect in SAR”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.