Abstract
Potato is one of the world's most significant food crops. During storage and transportation, potato tuber dry rots result in substantial losses that reduce quality and marketable production. Tuber losses from dry rots during storage range from 6.35 to 25 % annually. Dry rots of potato tubers, Cara cv., were surveyed in four counties: Minya, Samalut, Abu Qurqas and Matay, belonging to Minya governorate. The disease was detected in all potato storages in the three counties under investigation. Minya county had the highest disease incidence and severity followed by Matay, however Abu Qurqas county had the lowest disease incidence and severity. Nine isolates (presented 75%) of Fusarium sp., and three (25%) of Alternaria sp. were isolated from naturally rotted tubers of Cara cv. collected from different potato stores. PCR identification of the most virulent isolates, Fusarium isolate No.F4 and isolate No.A10 of Alternaria confirmed that Fusarium isolates were Fusarium oxysporum (accession No. PV400667) whereas Alternaria isolate was Alternaria alternata (accession No. PV390825). All genotypes of potato under study were susceptible to infection with all the five isolates evaluated, showing different degrees of DI% and DS%. Cara genotype was the highest susceptible one, while Lady Rosetta was more resistant. At the same time, isolate (F3) of F. oxysporum induced the maximum DI and DS, while A10 isolate of A. alternata showed the least DI and DS% on Cara, Sifra and Sponta genotypes, whereas F4 isolate of F. oxysporum induced the lowest disease severity and incidence on Pran, Metro and Lady Rosetta genotypes. The ability of different isolates to infect tomato, pepper, eggplant, cotton, hibiscus, and okra differed according to the host under study. Except hibiscus, isolate F4 of F. oxysporum was able to infect all tested plants. Whereas isolate F3 infected tomato, pepper, and eggplant. While isolates F1 and F2 infected tomato only. Isolate A10 of A. alternate infected tomato and eggplant. Hibiscus plants showed more resistance to any of the tested isolates.
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Claims 18
Claim · model-written summary
Dry rot was detected in all surveyed potato storages.
- Taxon
- potato
Solanum tuberosume0 - Outcome
- disease was detectede0
- Setting
- three countiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease was detected in all potato storages in the three counties under investigation”
Claim · model-written summary
Minya had the highest potato dry rot incidence and severity, followed by Matay.
- Taxon
- potatoSolanum tuberosume1
- Outcome
- disease incidence and severitye0
- Direction
- higheste0
- Setting
- Minya countye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Minya county had the highest disease incidence and severity followed by Matay”
e1“potato tuber dry rots”
Claim · model-written summary
Abu Qurqas had the lowest potato dry rot incidence and severity.
- Taxon
- potatoSolanum tuberosume1
- Outcome
- disease incidence and severitye0
- Direction
- loweste0
- Setting
- Abu Qurqas countye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Abu Qurqas county had the lowest disease incidence and severity”
e1“potato tuber dry rots”
Claim · model-written summary
Nine Fusarium isolates, representing 75%, were obtained from rotted Cara potato tubers.
- Taxon
- potatoSolanum tuberosume1
- Material
- Cara cv.e0
- Outcome
- isolatese0
- Value
- 75%e0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine isolates (presented 75%) of Fusarium sp., and three (25%) of Alternaria sp. were isolated from naturally rotted tubers of Cara cv.”
e1“potato tubers”
Claim · model-written summary
Three Alternaria isolates, representing 25%, were obtained from rotted Cara potato tubers.
- Taxon
- potatoSolanum tuberosume1
- Material
- Cara cv.e0
- Interactor
- Alternaria sp.
Alternariae0pathogen - Outcome
- isolated from naturally rotted tuberse0
- Value
- 25%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three (25%) of Alternaria sp. were isolated from naturally rotted tubers of Cara cv.”
e1“potato tubers”
Claim · model-written summary
PCR identified the virulent Fusarium isolate as Fusarium oxysporum.
- Taxon
- potatoSolanum tuberosume1
- Interactor
- Fusarium oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0pathogen - Outcome
- Fusarium isolates were Fusarium oxysporume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“Fusarium isolates were Fusarium oxysporum (accession No. PV400667)”
e1“potato tubers”
Claim · model-written summary
PCR identified the virulent Alternaria isolate as Alternaria alternata.
- Taxon
- potatoSolanum tuberosume1
- Interactor
- Alternaria alternata
.jpg?width=60)
Alternaria alternatae0pathogen - Outcome
- Alternaria isolate was Alternaria alternatae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Alternaria isolate was Alternaria alternata (accession No. PV390825)”
e1“potato tubers”
Claim · model-written summary
All studied potato genotypes were susceptible to all five tested isolates, with differing disease incidence and severity.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- susceptible to infectione0
- Qualifier
- different degrees of DI% and DS%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All genotypes of potato under study were susceptible to infection with all the five isolates evaluated, showing different degrees of DI% and DS%”
Claim · model-written summary
Cara was the most susceptible potato genotype.
- Taxon
- potatoSolanum tuberosume1
- Material
- Carae0
- Outcome
- highest susceptiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cara genotype was the highest susceptible one”
e1“genotypes of potato”
Claim · model-written summary
Lady Rosetta was more resistant among potato genotypes.
- Taxon
- potatoSolanum tuberosume1
- Material
- Lady Rosettae0
- Outcome
- more resistante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lady Rosetta was more resistant”
e1“genotypes of potato”
Claim · model-written summary
F. oxysporum isolate F3 caused the greatest disease incidence and severity.
- Taxon
- potatoSolanum tuberosume1
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- maximum DI and DSe0
- Qualifier
- isolate (F3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolate (F3) of F. oxysporum induced the maximum DI and DS”
e1“genotypes of potato”
Claim · model-written summary
A. alternata isolate A10 caused the least incidence and severity on Cara, Sifra and Sponta potatoes.
- Taxon
- potatoSolanum tuberosume1
- Interactor
- A. alternataAlternaria alternatae0pathogen
- Outcome
- least DI and DS%e0
- Qualifier
- Cara, Sifra and Sponta genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A10 isolate of A. alternata showed the least DI and DS% on Cara, Sifra and Sponta genotypes”
e1“genotypes of potato”
Claim · model-written summary
F. oxysporum isolate F4 caused the lowest potato disease incidence and severity on Pran, Metro and Lady Rosetta.
- Taxon
- potatoSolanum tuberosume1
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- lowest disease severity and incidencee0
- Qualifier
- Pran, Metro and Lady Rosetta genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F4 isolate of F. oxysporum induced the lowest disease severity and incidence on Pran, Metro and Lady Rosetta genotypes”
e1“genotypes of potato”
Claim · model-written summary
F. oxysporum isolate F4 infected every tested plant except hibiscus.
- Taxon
- plantsViridiplantaee0
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- able to infect all tested plantse0
- Qualifier
- Except hibiscuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except hibiscus, isolate F4 of F. oxysporum was able to infect all tested plants”
Claim · model-written summary
F. oxysporum isolate F3 infected tomato, pepper and eggplant.
- Taxon
- tomato
Solanum lycopersicume0 - Interactor
- F. oxysporumFusarium oxysporume1pathogen
- Outcome
- infected tomato, pepper, and eggplante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolate F3 infected tomato, pepper, and eggplant”
e1“isolate (F3) of F. oxysporum induced the maximum DI and DS”
Claim · model-written summary
F. oxysporum isolates F1 and F2 infected tomato only.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- F. oxysporumFusarium oxysporume1pathogen
- Outcome
- infected tomato onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolates F1 and F2 infected tomato only”
e1“isolate (F3) of F. oxysporum induced the maximum DI and DS”
Claim · model-written summary
Alternaria isolate A10 infected tomato and eggplant.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- A. alternatee0pathogen
- Outcome
- infected tomato and eggplante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolate A10 of A. alternate infected tomato and eggplant”
Claim · model-written summary
Hibiscus resisted all tested isolates more than the other tested hosts.
- Outcome
- more resistancee0
HibiscusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hibiscus plants showed more resistance to any of the tested isolates”