Abstract
Peanut southern blight, caused by the soil-borne pathogen Sclerotium rolfsii, is a widespread and devastating epidemic. Frequently, it is laborious to effectively control by labor-intensive foliar sprays of agrochemicals due to untimely find. In the present study, seed treatment with physcion (PHY) at doses of 0.08, 0.16, and 0.32 g AI kg –1 seed significantly improved the growth and photosynthetic activity of peanuts. Furthermore, PHY seed treatment resulted in an elevated enzymatic activity of key enzymes in peanut roots, including peroxidase, superoxide dismutase, polyphenol oxidase, catalase, lipoxygenase, and phenylalanine ammonia-lyase, as well as an increase in callus accumulation and lignin synthesis at the infection site, ultimately enhancing the root activity. This study revealed that PHY seed treatment could promote the accumulation of reactive oxygen species, salicylic acid (SA), and jasmonic acid (JA)/ethylene (ET) in peanut roots, while also decreasing the content of malondialdehyde levels in response to S. rolfsii infection. The results were further confirmed by transcriptome data and metabolomics. These findings suggest that PHY seed treatment activates the plant defense pathways mediated by SA and JA/ET in peanut roots, enhancing the resistance of peanut plants to S. rolfsii . In short, PHY is expected to be developed into a new plant-derived immunostimulant or fungicide to increase the options and means for peanut disease control.
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Claims 9
Claim · model-written summary
Physcion seed treatment significantly improved peanut growth and photosynthetic activity.
- Taxon
- peanuts
Arachis hypogaeae0 - Treatment
- seed treatment with physcion (PHY) at doses of 0.08, 0.16, and 0.32 g AI kg –1 seede0
- Outcome
- growth and photosynthetic activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment with physcion (PHY) at doses of 0.08, 0.16, and 0.32 g AI kg –1 seed significantly improved the growth and photosynthetic activity of peanuts”
Claim · model-written summary
Physcion seed treatment elevated activities of six defense enzymes in peanut roots.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- rootse0
- Treatment
- PHY seed treatmente0
- Gene
- peroxidase, superoxide dismutase, polyphenol oxidase, catalase, lipoxygenase, and phenylalanine ammonia-lyasee0
- Outcome
- enzymatic activity of key enzymese0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PHY seed treatment resulted in an elevated enzymatic activity of key enzymes in peanut roots, including peroxidase, superoxide dismutase, polyphenol oxidase, catalase, lipoxygenase, and phenylalanine ammonia-lyase”
Claim · model-written summary
Physcion seed treatment increased callus accumulation and lignin synthesis at infection sites.
- Taxon
- peanutArachis hypogaeat0
- Organ / stage
- infection sitee0
- Treatment
- PHY seed treatmente1
- Outcome
- callus accumulation and lignin synthesise0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in callus accumulation and lignin synthesis at the infection site”
e1“Furthermore, PHY seed treatment”
t0“Peanut”
Claim · model-written summary
Physcion seed treatment enhanced peanut root activity.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- PHY seed treatmente1
- Outcome
- root activitye0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ultimately enhancing the root activity”
e1“Furthermore, PHY seed treatment”
t0“Peanut”
Claim · model-written summary
Physcion promoted reactive oxygen species accumulation in peanut roots during infection.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- rootse0
- Treatment
- PHY seed treatmente0
- Interactor
- S. rolfsii
Agroathelia rolfsiie0pathogen - Outcome
- accumulation of reactive oxygen speciese0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PHY seed treatment could promote the accumulation of reactive oxygen species, salicylic acid (SA), and jasmonic acid (JA)/ethylene (ET) in peanut roots, while also decreasing the content of malondialdehyde levels in response to S. rolfsii infection”
Claim · model-written summary
Physcion promoted salicylic acid accumulation in peanut roots during infection.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- rootse0
- Treatment
- PHY seed treatmente0
- Interactor
- S. rolfsiiAgroathelia rolfsiie0pathogen
- Outcome
- accumulation of reactive oxygen species, salicylic acid (SA), and jasmonic acid (JA)/ethylene (ET)e0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PHY seed treatment could promote the accumulation of reactive oxygen species, salicylic acid (SA), and jasmonic acid (JA)/ethylene (ET) in peanut roots, while also decreasing the content of malondialdehyde levels in response to S. rolfsii infection”
Claim · model-written summary
Physcion decreased malondialdehyde content in infected peanut roots.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- PHY seed treatmente1
- Interactor
- S. rolfsiiAgroathelia rolfsiie0pathogen
- Outcome
- content of malondialdehyde levelse0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreasing the content of malondialdehyde levels in response to S. rolfsii infection”
e1“Furthermore, PHY seed treatment”
t0“Peanut”
Claim · model-written summary
The authors infer physcion activates SA and JA/ET defense pathways and increases peanut resistance to S. rolfsii.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- PHY seed treatmente0
- Interactor
- S. rolfsiiAgroathelia rolfsiie0pathogen
- Outcome
- resistance of peanut plants to S. rolfsiie0
- Qualifier
- defense pathways mediated by SA and JA/ETe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PHY seed treatment activates the plant defense pathways mediated by SA and JA/ET in peanut roots, enhancing the resistance of peanut plants to S. rolfsii”
Claim · model-written summary
The authors propose physcion as an immunostimulant or fungicide for peanut disease control.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- PHYe0
- Outcome
- developed into a new plant-derived immunostimulant or fungicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PHY is expected to be developed into a new plant-derived immunostimulant or fungicide to increase the options and means for peanut disease control”
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See all 5 papers →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.