Abstract
BACKGROUND: Charcoal rot of strawberry ( Macrophomina phaseolina) is an emerging disease difficult to manage, a desirable alternative is the use of resistant cultivars. However, little is known regarding the reaction of cultivars to the pathogen under water stress conditions. OBJECTIVE: The aims of this work were to study the effect of water stress on the physiology of four strawberry cultivars during the infection, and to determine the relationship between water stress and cultivar susceptibility. METHODS: Healthy and inoculated plants of ‘Monterey’, ‘Albion’, ‘Camarosa’ and ‘Sabrina’ were maintained under no irrigation and full irrigation regimes, in greenhouse conditions. Stem water potential (SWP) and stomatal conductance (gs) were evaluated. The disease severity was recorded weekly for seven weeks. RESULTS: The disease detrimentally affected the water relations in ‘Sabrina’, ‘Albion’ and ‘Monterey’. A significant correlation was detected between the evaluated parameters and the disease severity. The disease severity increases in plants with no irrigation, regardless of cultivar. CONCLUSIONS: Our results show that the infection caused by M. phaseolina increases the negative effects of water stress, depending on the genotype, and that the cultivars that were able to maintain more stable water relations respond better to the disease.
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Claims 5
Claim · model-written summary
Charcoal rot adversely affected water relations in Sabrina, Albion, and Monterey.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Material
- ‘Sabrina’, ‘Albion’ and ‘Monterey’e0
- Interactor
- Macrophomina phaseolina
Macrophomina phaseolinat0pathogen - Outcome
- water relationse0
- Direction
- detrimentally affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“The disease detrimentally affected the water relations in ‘Sabrina’, ‘Albion’ and ‘Monterey’”
t0“strawberry cultivars to the charcoal rot caused by Macrophomina phaseolina”
Claim · model-written summary
Measured water-relation parameters correlated significantly with charcoal rot severity.
- Taxon
- strawberryFragaria ×ananassat0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinat0pathogen
- Outcome
- disease severitye0
- Qualifier
- evaluated parameterse0
Not reportedOrgan / stageDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant correlation was detected between the evaluated parameters and the disease severity”
t0“strawberry cultivars to the charcoal rot caused by Macrophomina phaseolina”
Claim · model-written summary
No irrigation increased disease severity in all strawberry cultivars.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- no irrigatione0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinat0pathogen
- Outcome
- disease severitye0
- Direction
- increasese0
- Qualifier
- regardless of cultivare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease severity increases in plants with no irrigation, regardless of cultivar”
t0“strawberry cultivars to the charcoal rot caused by Macrophomina phaseolina”
Claim · model-written summary
The authors conclude that infection amplifies water stress effects depending on strawberry genotype.
- Taxon
- strawberryFragaria ×ananassat0
- Interactor
- M. phaseolinaMacrophomina phaseolinae0pathogen
- Outcome
- negative effects of water stresse0
- Direction
- increasese0
- Qualifier
- depending on the genotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the infection caused by M. phaseolina increases the negative effects of water stress, depending on the genotype”
t0“strawberry cultivars to the charcoal rot caused by Macrophomina phaseolina”
Claim · model-written summary
Cultivars maintaining more stable water relations responded better to charcoal rot.
- Taxon
- strawberryFragaria ×ananassat0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinat0pathogen
- Outcome
- respond better to the diseasee0
- Direction
- bettere0
- Qualifier
- more stable water relationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cultivars that were able to maintain more stable water relations respond better to the disease”
t0“strawberry cultivars to the charcoal rot caused by Macrophomina phaseolina”
The same questions in other papers
irrigation · Macrophomina phaseolina · Fragaria x ananassa (strawberry)Results agree
1 paper in the same direction as this paper
- no effect
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.