Abstract
Rice stripe virus (RSV) causes one of the most important rice virus diseases of plants in East Asia. However, the molecular mechanisms controlling rice resistance to RSV infection are largely unknown. Recently, several studies presented a novel model that melatonin (MT) and nitric oxide (NO) participate in the plant-pathogen interaction in a synergetic manner. In this study, there was a difference in MT content between two rice varieties that correlated with one being susceptible and one being resistant to RSV, which suggested that MT is related to RSV resistance. In addition, a test with two NO biosynthesis inhibitors revealed that NO inhibitor were able to increase the disease incidence of RSV. A pharmacological experiment with exogenous MT and NO showed that increased MT and NO in the MT-pretreated plants led to lower disease incidences; however, only NO increased in a NO-releasing reagent [sodium nitroprusside (SNP)] pretreated plants. The expressions level of OsPR1b and OsWRKY 45 were significantly induced by MT and NO. These results suggest that rice resistance to RSV can be improved by increased MT through a NO-dependent pathway.
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Claims 5
Claim · model-written summary
Melatonin content differed between resistant and susceptible rice varieties and correlated with RSV resistance.
- Taxon
- rice
Oryza sativat0 - Material
- two rice varietiese0
- Interactor
- RSVe0pathogen
- Outcome
- MT contente0
- Direction
- differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a difference in MT content between two rice varieties that correlated with one being susceptible and one being resistant to RSV”
t0“Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway”
Claim · model-written summary
NO biosynthesis inhibitors increased RSV disease incidence.
- Taxon
- riceOryza sativat0
- Treatment
- two NO biosynthesis inhibitorse0
- Interactor
- RSVe0pathogen
- Outcome
- disease incidence of RSVe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a test with two NO biosynthesis inhibitors revealed that NO inhibitor were able to increase the disease incidence of RSV”
t0“Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway”
Claim · model-written summary
SNP pretreatment increased NO alone.
- Taxon
- riceOryza sativat0
- Treatment
- sodium nitroprusside (SNP)e0
- Outcome
- NOe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only NO increased in a NO-releasing reagent [sodium nitroprusside (SNP)] pretreated plants”
t0“Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway”
Claim · model-written summary
MT and NO significantly induced OsPR1b and OsWRKY 45 expression.
- Taxon
- riceOryza sativat0
- Treatment
- MT and NOe0
- Gene
- OsPR1b and OsWRKY 45e0
- Outcome
- expressions levele0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expressions level of OsPR1b and OsWRKY 45 were significantly induced by MT and NO”
t0“Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway”
Claim · model-written summary
The authors infer that increased melatonin improves rice resistance to RSV through a NO-dependent pathway.
- Taxon
- riceOryza sativat0
- Interactor
- RSVe0pathogen
- Outcome
- rice resistance to RSVe0
- Direction
- improvede0
- Qualifier
- NO-dependent pathwaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice resistance to RSV can be improved by increased MT through a NO-dependent pathway”
t0“Melatonin is responsible for rice resistance to rice stripe virus infection through a nitric oxide-dependent pathway”
The same questions in other papers
nitric oxide · disease · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.