Abstract
Verticillium wilt of potato is a major limiting factor in potato production caused by Verticillium dahliae. The objective of this study was to evaluate the efficacy two elicitors including Acibenzolar-S-methyl (ASM) and Chitosan as plant activator in controlling of potato verticillium wilt in vitro and greenhouse conditions. ASM and chitosan were tested in vitro using Potato dextrose Agar (PDA) amended with five concentrations (0, 5, 50, 100, 500 µg a.i./ml). All the concentration of Chitosan reduced radial growth of V. dahliae in vitro significantly (p < 0.05) after 120 h (9 to 57.5%), Whereas, ASM did not significantly reduce on the growth of pathogen in vitro and reduced radial growth of pathogen very less (5.4 to 16.9%). The effective concentration of Chitosan that reduced the radial growth of V. dahliae to 50% (EC50) was 258.28 μg/ml. In greenhouse conditions, potato tubers c.v Agria dipped in aqueous solution of different concentration of elicitors and sown in soil of pots artificially infested with V. dahliae. Also, ASM and chitosan applied by foliar spray on potato seedlings at concentration 100 µg a.i./plant; 15, 25 and 40 days after sowing. Results shown all treatment significantly reduced disease severity and increased tubers fresh weights, but ASM was more effective than chitosan and reduced the potato verticillium wilt. The biggest disease reduction and increasing yields of potato belong to concentration of 500 µg a.i./ml of ASM by 67.8% and 56.7%, respectively. Results showed that ASM and chitosan may be inducing plant resistance and protected tubers of potato against Potato verticillium wilt. These chemical could provide a new approach for suppression of Potato verticillium wilt, but its practical use needs further investigation.
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Claims 10
Claim · model-written summary
All tested chitosan concentrations significantly reduced V. dahliae radial growth in vitro after 120 h by 9 to 57.5%.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- Chitosane0
- Interactor
- V. dahliae
Verticillium dahliaee0pathogen - Outcome
- radial growth of V. dahliaee0
- Direction
- reducede0
- Value
- 9 to 57.5%e0
- Setting
- in vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the concentration of Chitosan reduced radial growth of V. dahliae in vitro significantly (p < 0.05) after 120 h (9 to 57.5%)”
t0“potato”
Claim · model-written summary
ASM reduced pathogen radial growth by 5.4 to 16.9% in vitro without statistical significance.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- ASMe0
- Outcome
- radial growth of pathogene0
- Direction
- reducede0
- Value
- 5.4 to 16.9%e0
- Setting
- in vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASM did not significantly reduce on the growth of pathogen in vitro and reduced radial growth of pathogen very less (5.4 to 16.9%).”
t0“potato”
Claim · model-written summary
The chitosan concentration giving 50% reduction of V. dahliae radial growth was 258.28 μg/ml.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Chitosane0
- Interactor
- V. dahliaeVerticillium dahliaee0pathogen
- Outcome
- radial growth of V. dahliaee0
- Direction
- reducede0
- Value
- 258.28 μg/mle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effective concentration of Chitosan that reduced the radial growth of V. dahliae to 50% (EC50) was 258.28 μg/ml.”
t0“potato”
Claim · model-written summary
All elicitor treatments significantly reduced verticillium wilt severity.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- all treatmente0
- Interactor
- verticillium wilte0pathogen
- Outcome
- disease severitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results shown all treatment significantly reduced disease severity and increased tubers fresh weights, but ASM was more effective than chitosan and reduced the potato verticillium wilt.”
Claim · model-written summary
All elicitor treatments significantly increased tuber fresh weight.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- all treatmente0
- Outcome
- tubers fresh weightse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results shown all treatment significantly reduced disease severity and increased tubers fresh weights, but ASM was more effective than chitosan and reduced the potato verticillium wilt.”
Claim · model-written summary
ASM was more effective than chitosan at reducing potato verticillium wilt.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- ASMe0
- Outcome
- potato verticillium wilte0
- Direction
- more effectivee0
- Comparator
- chitosane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results shown all treatment significantly reduced disease severity and increased tubers fresh weights, but ASM was more effective than chitosan and reduced the potato verticillium wilt.”
Claim · model-written summary
ASM at 500 µg a.i./ml gave the greatest disease reduction, 67.8%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- 500 µg a.i./ml of ASMe0
- Outcome
- disease reductione0
- Direction
- biggeste0
- Value
- 67.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biggest disease reduction and increasing yields of potato belong to concentration of 500 µg a.i./ml of ASM by 67.8% and 56.7%, respectively.”
Claim · model-written summary
ASM at 500 µg a.i./ml increased potato yield by 56.7%.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- 500 µg a.i./ml of ASMe0
- Outcome
- yields of potatoe0
- Direction
- increasinge0
- Value
- 56.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biggest disease reduction and increasing yields of potato belong to concentration of 500 µg a.i./ml of ASM by 67.8% and 56.7%, respectively.”
Claim · model-written summary
The authors suggest ASM and chitosan may induce resistance protecting potato tubers against wilt.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tuberse0
- Treatment
- ASM and chitosane0
- Outcome
- plant resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed that ASM and chitosan may be inducing plant resistance and protected tubers of potato against Potato verticillium wilt.”
Claim · model-written summary
The authors suggest these chemicals could suppress potato verticillium wilt, pending investigation of practical use.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- suppression of Potato verticillium wilte0
- Qualifier
- practical use needs further investigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These chemical could provide a new approach for suppression of Potato verticillium wilt, but its practical use needs further investigation.”
t0“potato”
The same questions in other papers
acibenzolar-S-methyl · yield · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
acibenzolar-S-methyl · disease · Solanum tuberosum (potato)Results agree
3 papers in the same direction as this paper
- positive
- 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.