Abstract
Exogenous foliar SAR elicitors like Jasmonic acid (JA), Salicylic acid (SA) and Benzothiadiazole (BTH) @ 500μM and Beta Amino butyric acid (BABA) @ 50 mM were tested to induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis. Thirty-three germplasm lines/varieties of muskmelon were evaluated for three years and the results revealed that: eleven muskmelon varieties were moderately resistant and showed better response to SAR elicitors against P. cubensis. These elicitors were sprayed on three-week-old plants and effect on induction of defence related proteins and downy mildew severity was studied. Leaf samples were collected upto 7 days post treatment for estimation of total proteins. Sporangial solution (4.0 x 104 sporangia per ml) was sprayed after one week of elicitors spray and per cent disease severity was recorded at 14 days interval. SA, JA, BTH and BABA caused statistically significant increase in total soluble protein in sprayed as well new unsprayed leaves indicating systemic induction of defense related proteins. Mean maximum protein i.e. 11.4 mg/g FW was highest in SA treated, three muskmelon varieties i.e. Punjab Sunehri, MC 2012-9 and MM105-Kajri followed by 11.2 mg/g FW in Hemed and 11.1 mg/g FW in MM4305, respectively. Maximum per cent disease control of 93.48 was observed in SA treated Rough skin variety followed by MM3843 and MM4305 with disease control of 92.07 and 91.27%, respectively. Minimum disease control was observed in BTH treated Kajri plants. Foliar application of SA was most effective followed by JA, BABA and BTH. The response was higher in moderately resistant variety but susceptible variety also showed better response as evident by decreased disease severity. Therefore application of elicitors followed by inoculation with P. cubensis help in eliciting the levels of defense related proteins which play an important role in protecting muskmelon against downy mildew disease.
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Claims 13
Claim · model-written summary
SA, JA, BTH and BABA significantly increased total soluble protein in sprayed and unsprayed muskmelon leaves.
- Taxon
- muskmelon
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Cucumis meloe1 - Treatment
- SA, JA, BTH and BABAe2
- Interactor
- Pseudoperonospora cubensis
Pseudoperonospora cubensise1pathogen - Outcome
- total soluble proteine2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e2“SA, JA, BTH and BABA caused statistically significant increase in total soluble protein in sprayed as well new unsprayed leaves”
Claim · model-written summary
Eleven muskmelon varieties were moderately resistant to downy mildew.
- Taxon
- muskmelonCucumis meloe1
- Material
- eleven muskmelon varietiese3
- Interactor
- P. cubensisPseudoperonospora cubensise3pathogen
- Outcome
- moderately resistante3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e3“eleven muskmelon varieties were moderately resistant and showed better response to SAR elicitors against P. cubensis”
Claim · model-written summary
SA treatment gave the highest mean maximum protein of 11.4 mg/g FW in Punjab Sunehri, MC 2012-9 and MM105-Kajri.
- Taxon
- muskmelonCucumis meloe1
- Material
- Punjab Sunehri, MC 2012-9 and MM105-Kajrie4
- Treatment
- SAe4
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- Mean maximum proteine4
- Direction
- higheste4
- Value
- 11.4 mg/g FWe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e4“Mean maximum protein i.e. 11.4 mg/g FW was highest in SA treated, three muskmelon varieties i.e. Punjab Sunehri, MC 2012-9 and MM105-Kajri”
Claim · model-written summary
Hemed had a maximum protein of 11.2 mg/g FW.
- Taxon
- muskmelonCucumis meloe1
- Material
- Hemede5
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- Mean maximum proteine4
- Value
- 11.2 mg/g FWe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e4“Mean maximum protein i.e. 11.4 mg/g FW was highest in SA treated, three muskmelon varieties i.e. Punjab Sunehri, MC 2012-9 and MM105-Kajri”
e5“followed by 11.2 mg/g FW in Hemed and 11.1 mg/g FW in MM4305, respectively”
Claim · model-written summary
MM4305 had a maximum protein of 11.1 mg/g FW.
- Taxon
- muskmelonCucumis meloe1
- Material
- MM4305e5
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- Mean maximum proteine4
- Value
- 11.1 mg/g FWe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e4“Mean maximum protein i.e. 11.4 mg/g FW was highest in SA treated, three muskmelon varieties i.e. Punjab Sunehri, MC 2012-9 and MM105-Kajri”
e5“followed by 11.2 mg/g FW in Hemed and 11.1 mg/g FW in MM4305, respectively”
Claim · model-written summary
SA treatment of the Rough skin variety gave the maximum disease control of 93.48%.
- Taxon
- muskmelonCucumis meloe1
- Material
- Rough skin varietye6
- Treatment
- SAe6
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- per cent disease controle6
- Direction
- Maximume6
- Value
- 93.48e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e6“Maximum per cent disease control of 93.48 was observed in SA treated Rough skin variety followed by MM3843 and MM4305 with disease control of 92.07 and 91.27%, respectively”
Claim · model-written summary
MM3843 had disease control of 92.07%.
- Taxon
- muskmelonCucumis meloe1
- Material
- MM3843e6
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- disease controle6
- Value
- 92.07e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e6“Maximum per cent disease control of 93.48 was observed in SA treated Rough skin variety followed by MM3843 and MM4305 with disease control of 92.07 and 91.27%, respectively”
Claim · model-written summary
MM4305 had disease control of 91.27%.
- Taxon
- muskmelonCucumis meloe1
- Material
- MM4305e6
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- disease controle6
- Value
- 91.27%e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e6“Maximum per cent disease control of 93.48 was observed in SA treated Rough skin variety followed by MM3843 and MM4305 with disease control of 92.07 and 91.27%, respectively”
Claim · model-written summary
BTH treatment of Kajri plants gave the minimum disease control.
- Taxon
- muskmelonCucumis meloe1
- Material
- Kajri plantse7
- Treatment
- BTHe7
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- Minimum disease controle7
- Direction
- Minimume7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e7“Minimum disease control was observed in BTH treated Kajri plants”
Claim · model-written summary
Foliar SA was the most effective elicitor, followed by JA, BABA and BTH.
- Taxon
- muskmelonCucumis meloe1
- Treatment
- Foliar application of SAe0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- effectivee0
- Direction
- most effectivee0
- Comparator
- JA, BABA and BTHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e0“Foliar application of SA was most effective followed by JA, BABA and BTH”
Claim · model-written summary
The moderately resistant variety responded more strongly to the elicitors.
- Taxon
- muskmelonCucumis meloe1
- Material
- moderately resistant varietye0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- responsee0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e0“The response was higher in moderately resistant variety but susceptible variety also showed better response as evident by decreased disease severity”
Claim · model-written summary
The susceptible variety showed decreased disease severity after elicitor treatment.
- Taxon
- muskmelonCucumis meloe1
- Material
- susceptible varietye0
- Interactor
- Pseudoperonospora cubensisPseudoperonospora cubensise1pathogen
- Outcome
- disease severitye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e0“The response was higher in moderately resistant variety but susceptible variety also showed better response as evident by decreased disease severity”
Claim · model-written summary
Elicitor application followed by inoculation is proposed to help elicit defence related proteins that protect muskmelon.
- Taxon
- muskmelonCucumis meloe1
- Treatment
- application of elicitors followed by inoculation with P. cubensise6
- Interactor
- P. cubensisPseudoperonospora cubensise6pathogen
- Outcome
- levels of defense related proteinse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pseudoperonospora cubensis”
e1“induce systemic acquired resistance (SAR) in muskmelon against downy mildew caused by Pseudoperonospora cubensis”
e6“application of elicitors followed by inoculation with P. cubensis help in eliciting the levels of defense related proteins”
The same questions in other papers
salicylic acid · Pseudoperonospora cubensis · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
jasmonic acid · Pseudoperonospora cubensis · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
acibenzolar-S-methyl · Pseudoperonospora cubensis · 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.