Abstract
Southern rice black-streaked dwarf virus (SRBSDV) has spread from thesouth of China to the north of Vietnam in the past few years and severelyinfluenced rice production. Its long incubation period and early symptoms are not evident; thus, controlling it is difficult. Chitosan oligosaccharide (COS) is a green plant immunomodulator. Early studies showed that preventing and controlling SRBSDV have a certain effect and reduce disease infection rate, but its underlying controlling and preventing mechanism is unclear. In this study, label-free proteomics was used to analyze differentially expressed proteins in rice after COS treatment. The results showed that COS can up-regulate the plant defense-related proteins and down-regulate the protein expression levels of SRBSDV. Meanwhile, quantitative real-time PCR test results showed that COS can improve defense gene expression in rice. Moreover, COS can enhance the defense enzymatic activities of peroxidase, superoxide dismutase and catalase through mitogen-activated protein kinase signaling cascade pathway, and enhance the rice disease resistance.
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Claims 5
Claim · model-written summary
COS up-regulated plant defense-related proteins in rice.
- Taxon
- Rice
Oryza sativat0 - Treatment
- COSe0
- Interactor
- SRBSDVe0pathogen
- Outcome
- plant defense-related proteinse0
- Direction
- up-regulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“COS can up-regulate the plant defense-related proteins and down-regulate the protein expression levels of SRBSDV.”
t0“Treated Rice Infected”
Claim · model-written summary
COS down-regulated SRBSDV protein expression.
- Taxon
- RiceOryza sativat0
- Treatment
- COSe0
- Interactor
- SRBSDVe0pathogen
- Outcome
- protein expression levels of SRBSDVe0
- Direction
- down-regulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“COS can up-regulate the plant defense-related proteins and down-regulate the protein expression levels of SRBSDV.”
t0“Treated Rice Infected”
Claim · model-written summary
COS improved defense gene expression in rice.
- Taxon
- riceOryza sativae0
- Treatment
- COSe0
- Outcome
- defense gene expressione0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“COS can improve defense gene expression in rice.”
Claim · model-written summary
COS enhanced peroxidase, superoxide dismutase and catalase activities.
- Taxon
- riceOryza sativae0
- Treatment
- COSe0
- Outcome
- defense enzymatic activities of peroxidase, superoxide dismutase and catalasee0
- Direction
- enhancee0
- Qualifier
- mitogen-activated protein kinase signaling cascade pathwaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“COS can enhance the defense enzymatic activities of peroxidase, superoxide dismutase and catalase through mitogen-activated protein kinase signaling cascade pathway, and enhance the rice disease resistance.”
Claim · model-written summary
COS enhanced rice disease resistance.
- Taxon
- riceOryza sativae0
- Treatment
- COSe0
- Outcome
- rice disease resistancee0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“COS can enhance the defense enzymatic activities of peroxidase, superoxide dismutase and catalase through mitogen-activated protein kinase signaling cascade pathway, and enhance the rice disease resistance.”
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