Abstract
Defensive enzyme activities in melon leaves sprayed with plant-derived inducers were investigated with cultivars 'Yindi' and 'Kalakesai'.The results showed that foliar spraying of BTH,Platycladus orientalis abstract(CB) and Chinese herb preparation(ZY) were effective in inducing melon resistance to downy mildew caused by Pseudoperonospora cubensis.After the inducer spraying and Pseudoperonospora cubensis inoculation,the activities of defensive enzymes in melon leaves significantly increased.The activities of polyphenol oxidase(PPO),phenylalanine ammonia-lyase(PAL),chitinase(CHI) and β-1,3-glucanase(GLU) in leaves of disease-resistant cultivar 'Yindi' increased more than those in the susceptible cultivar 'Kalakesai',while the peroxidase(POD) activity of 'Kalakesai' is higher than that in 'Yindi'.It can be concluded that foliar spraying of Platycladus orientalis abstract and Chinese herb preparation could induce the increase of defensive enzyme activities in melon leaves systemically,and which may be an important biochemical mechanism of increased resistance of melon plants to Pseudoperonospora cubensis.
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Claims 8
Claim · model-written summary
BTH foliar spray induced melon resistance to downy mildew.
- Taxon
- melon
.jpg?width=60)
Cucumis melot0 - Treatment
- foliar spraying of BTHe0
- Interactor
- Pseudoperonospora cubensis
Pseudoperonospora cubensise0pathogen - Outcome
- melon resistance to downy mildewe0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“melon”
e0“foliar spraying of BTH,Platycladus orientalis abstract(CB) and Chinese herb preparation(ZY) were effective in inducing melon resistance to downy mildew caused by Pseudoperonospora cubensis”
Claim · model-written summary
Platycladus orientalis extract foliar spray induced downy mildew resistance.
- Taxon
- melonCucumis melot0
- Treatment
- Platycladus orientalis abstract(CB)e0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise0pathogen
- Outcome
- melon resistance to downy mildewe0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“foliar spraying of BTH,Platycladus orientalis abstract(CB) and Chinese herb preparation(ZY) were effective in inducing melon resistance to downy mildew caused by Pseudoperonospora cubensis”
Claim · model-written summary
Chinese herb preparation foliar spray induced downy mildew resistance.
- Taxon
- melonCucumis melot0
- Treatment
- Chinese herb preparation(ZY)e0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise0pathogen
- Outcome
- melon resistance to downy mildewe0
- Direction
- inducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“foliar spraying of BTH,Platycladus orientalis abstract(CB) and Chinese herb preparation(ZY) were effective in inducing melon resistance to downy mildew caused by Pseudoperonospora cubensis”
Claim · model-written summary
Defensive enzyme activities increased after inducer spray and pathogen inoculation.
- Taxon
- melonCucumis melot0
- Treatment
- inducer spraying and Pseudoperonospora cubensis inoculatione0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise0pathogen
- Outcome
- activities of defensive enzymes in melon leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“After the inducer spraying and Pseudoperonospora cubensis inoculation,the activities of defensive enzymes in melon leaves significantly increased”
Claim · model-written summary
PPO, PAL and chitinase activities increased more in Yindi than Kalakesai.
- Taxon
- melonCucumis melot0
- Material
- 'Yindi'e0
- Outcome
- activities of polyphenol oxidase(PPO),phenylalanine ammonia-lyase(PAL),chitinase(CHI)e0
- Direction
- increased moree0
- Comparator
- 'Kalakesai'e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“The activities of polyphenol oxidase(PPO),phenylalanine ammonia-lyase(PAL),chitinase(CHI) and β-1,3-glucanase(GLU) in leaves of disease-resistant cultivar 'Yindi' increased more than those in the susceptible cultivar 'Kalakesai'”
Claim · model-written summary
β-1,3-glucanase activity increased more in Yindi than Kalakesai.
- Taxon
- melonCucumis melot0
- Material
- 'Yindi'e0
- Outcome
- β-1,3-glucanase(GLU)e0
- Direction
- increased moree0
- Comparator
- 'Kalakesai'e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“The activities of polyphenol oxidase(PPO),phenylalanine ammonia-lyase(PAL),chitinase(CHI) and β-1,3-glucanase(GLU) in leaves of disease-resistant cultivar 'Yindi' increased more than those in the susceptible cultivar 'Kalakesai'”
Claim · model-written summary
Peroxidase activity was higher in Kalakesai than Yindi.
- Taxon
- melonCucumis melot0
- Material
- 'Kalakesai'e0
- Outcome
- peroxidase(POD) activitye0
- Direction
- highere0
- Comparator
- 'Yindi'e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“the peroxidase(POD) activity of 'Kalakesai' is higher than that in 'Yindi'”
Claim · model-written summary
Authors propose systemic defense enzyme induction as a mechanism of increased resistance.
- Taxon
- melonCucumis melot0
- Treatment
- foliar spraying of Platycladus orientalis abstract and Chinese herb preparatione0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise0pathogen
- Outcome
- increased resistance of melon plants to Pseudoperonospora cubensise0
- Qualifier
- increase of defensive enzyme activities in melon leaves systemicallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“melon”
e0“foliar spraying of Platycladus orientalis abstract and Chinese herb preparation could induce the increase of defensive enzyme activities in melon leaves systemically,and which may be an important biochemical mechanism of increased resistance of melon plants to Pseudoperonospora cubensis”
The same questions in other papers
acibenzolar-S-methyl · Pseudoperonospora cubensis · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
application · physiology: enzyme activity · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
inoculation · physiology: enzyme activity · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
application · Pseudoperonospora cubensis · Cucumis melo (muskmelon)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.