Abstract
An investigation was undertaken to know the biochemical basis of resistance to okra yellow vein mosaic virus (OYVMV) in susceptible cultivated okra (A. esculentus), resistant related wild species and their interspecific hybrids. The results revealed that wild parents resistant to OYVMV had maximum phenolics, peroxidase, polyphenol oxidase activity and seed soluble protein content while cultivated okra had minimum of these whereas inter-specific hybrids recorded in between their parents. However, sugars (reducing, non reducing and total) and total nitrogen content were found minimum in resistant wild parents, maximum in cultivated okra and intermediate in case of inter-specific hybrids. In OYVMV resistant plants infected with OYVMV, phenolic content decreased while peroxidase and polyphenol oxidase activity, total nitrogen and sugar content increased when compared with QYVMV resistant healthy plants while an exact opposite trend was observed in the OYVMV susceptible healthy and infected plants. Higher amount of phenols and their oxidation products like quinines formed by increased peroxidase and poly phenol oxidase may be responsible for reduced virus multiplication which finally could have lead to resistant reaction in wild okra and their interspecific hybrids.
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Claims 9
Claim · model-written summary
Resistant wild okra parents had higher phenolics, peroxidase and polyphenol oxidase activity than cultivated okra
- Taxon
- okra
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Abelmoschus esculentuse2 - Material
- wild parents resistant to OYVMVe1
- Outcome
- phenolics, peroxidase, polyphenol oxidase activitye1
- Direction
- maximume1
- Comparator
- cultivated okrae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“wild parents resistant to OYVMV had maximum phenolics, peroxidase, polyphenol oxidase activity and seed soluble protein content while cultivated okra had minimum of these”
e2“susceptible cultivated okra (A. esculentus)”
Claim · model-written summary
Resistant wild okra parents had higher seed soluble protein content than cultivated okra
- Taxon
- okraAbelmoschus esculentuse2
- Material
- wild parents resistant to OYVMVe1
- Outcome
- seed soluble protein contente1
- Direction
- maximume1
- Comparator
- cultivated okrae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“wild parents resistant to OYVMV had maximum phenolics, peroxidase, polyphenol oxidase activity and seed soluble protein content while cultivated okra had minimum of these”
e2“susceptible cultivated okra (A. esculentus)”
Claim · model-written summary
Resistant wild okra parents had minimum reducing, non-reducing and total sugars compared with cultivated okra
- Taxon
- okraAbelmoschus esculentuse2
- Material
- resistant wild parentse3
- Outcome
- sugars (reducing, non reducing and total)e3
- Direction
- minimume3
- Comparator
- cultivated okrae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e3“sugars (reducing, non reducing and total) and total nitrogen content were found minimum in resistant wild parents, maximum in cultivated okra”
Claim · model-written summary
Resistant wild okra parents had minimum total nitrogen content compared with cultivated okra
- Taxon
- okraAbelmoschus esculentuse2
- Material
- resistant wild parentse3
- Outcome
- total nitrogen contente3
- Direction
- minimume3
- Comparator
- cultivated okrae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e3“sugars (reducing, non reducing and total) and total nitrogen content were found minimum in resistant wild parents, maximum in cultivated okra”
Claim · model-written summary
OYVMV infection decreased phenolic content in resistant okra plants compared with healthy resistant plants
- Taxon
- okraAbelmoschus esculentuse2
- Material
- OYVMV resistant plantse1
- Treatment
- infected with OYVMVe1
- Interactor
- OYVMVe1pathogen
- Outcome
- phenolic contente1
- Direction
- decreasede1
- Comparator
- resistant healthy plantse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e5“QYVMV resistant healthy plants”
e1“In OYVMV resistant plants infected with OYVMV, phenolic content decreased”
Claim · model-written summary
OYVMV infection increased peroxidase and polyphenol oxidase activity in resistant okra plants compared with healthy resistant plants
- Taxon
- okraAbelmoschus esculentuse2
- Material
- OYVMV resistant plantse1
- Treatment
- infected with OYVMVe1
- Interactor
- OYVMVe1pathogen
- Outcome
- peroxidase and polyphenol oxidase activitye4
- Direction
- increasede4
- Comparator
- resistant healthy plantse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e4“phenolic content decreased while peroxidase and polyphenol oxidase activity, total nitrogen and sugar content increased”
e5“QYVMV resistant healthy plants”
e1“In OYVMV resistant plants infected with OYVMV, phenolic content decreased”
Claim · model-written summary
OYVMV infection increased total nitrogen and sugar content in resistant okra plants compared with healthy resistant plants
- Taxon
- okraAbelmoschus esculentuse2
- Material
- OYVMV resistant plantse1
- Treatment
- infected with OYVMVe1
- Interactor
- OYVMVe1pathogen
- Outcome
- total nitrogen and sugar contente4
- Direction
- increasede4
- Comparator
- resistant healthy plantse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e4“phenolic content decreased while peroxidase and polyphenol oxidase activity, total nitrogen and sugar content increased”
e5“QYVMV resistant healthy plants”
e1“In OYVMV resistant plants infected with OYVMV, phenolic content decreased”
Claim · model-written summary
OYVMV susceptible okra showed the exact opposite trend in phenolic content to resistant okra
- Taxon
- okraAbelmoschus esculentuse2
- Material
- OYVMV susceptiblee6
- Interactor
- OYVMVe6pathogen
- Outcome
- phenolic contente4
- Direction
- exact opposite trende6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e4“phenolic content decreased while peroxidase and polyphenol oxidase activity, total nitrogen and sugar content increased”
e6“an exact opposite trend was observed in the OYVMV susceptible healthy and infected plants”
Claim · model-written summary
Higher phenols and quinones formed by increased peroxidase and polyphenol oxidase may reduce virus multiplication in wild okra and its hybrids
- Taxon
- okraAbelmoschus esculentuse2
- Compound
- phenolse7
- Outcome
- virus multiplicatione7
- Qualifier
- quinines formed by increased peroxidase and poly phenol oxidasee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“susceptible cultivated okra (A. esculentus)”
e7“Higher amount of phenols and their oxidation products like quinines formed by increased peroxidase and poly phenol oxidase may be responsible for reduced virus multiplication”
The same questions in other papers
infection · quality: phytochemicals · Abelmoschus esculentus (okra)Positive and negative results
1 in the opposite direction
- positive
infection · physiology: antioxidant enzymes · Abelmoschus esculentus (okra)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.