Abstract
The effect of hot water treatment ( HWT ) to control peach brown rot was investigated. Peaches were dipped in water at 60°C for 60 s and artificially inoculated with Monilinia fructicola conidia. HWT failed to control brown rot if applied before inoculation and microscopic observations revealed a stimulatory effect on germ tube elongation of M. fructicola conidia placed immediately after HWT on the fruit surface, compared to the control. The influence of fruit volatile emission due to HWT was performed on the pathogen conidia exposed to the headspace surrounding peaches. The results showed an increase of M. fructicola conidial germination ranging from 33 to 64% for cultivars Lucie Tardibelle and Red Haven heat‐treated peaches, respectively, compared to the control. The volatile blend emitted from heat‐treated fruit was analysed by solid‐phase microextraction/gas chromatography‐mass spectrometry ( SPME/GC‐MS ) and proton transfer reaction‐time of flight‐mass spectrometry ( PTR‐ToF‐MS ). Fifty compounds were detected by SPME/GC‐MS in volatile blends of cv. Lucie Tardibelle peaches and significant differences in volatile emission were observed among heated and control fruit. Using PTR‐ToF‐MS analysis, acetaldehyde and ethanol were detected at levels 15‐ and 28‐fold higher in heated fruit compared to unheated ones, respectively. In vitro assays confirmed the stimulatory effect (60 and 15%) of acetaldehyde (0·6 μL L −1 ) and ethanol (0·2 μL L −1 ) on M. fructicola conidial germination and mycelial growth, respectively. The results showed that volatile organic compounds ( VOC s) emitted from heat‐treated peaches could stimulate M. fructicola conidial germination, increasing brown rot incidence in treated peaches when the inoculation occurs immediately after HWT .
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Claims 12
Claim · model-written summary
Hot water treatment before inoculation failed to control peach brown rot.
- Taxon
- peach
Prunus persicat0 - Treatment
- HWTe0
- Outcome
- brown rote0
- Direction
- failed to controle0
- Comparator
- before inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HWT failed to control brown rot if applied before inoculation”
t0“peach”
Claim · model-written summary
Hot water treatment stimulated M. fructicola germ tube elongation on peach fruit relative to control.
- Taxon
- peachPrunus persicat0
- Treatment
- HWTe0
- Interactor
- M. fructicola
Monilinia fructicolae0pathogen - Outcome
- germ tube elongation of M. fructicola conidiae0
- Direction
- stimulatorye0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“microscopic observations revealed a stimulatory effect on germ tube elongation of M. fructicola conidia placed immediately after HWT on the fruit surface, compared to the control”
t0“peach”
Claim · model-written summary
Heat-treated Lucie Tardibelle peaches increased M. fructicola conidial germination by 33% versus control.
- Taxon
- peachesPrunus persicae0
- Material
- Lucie Tardibellee0
- Treatment
- heat‐treatede0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- M. fructicola conidial germinatione0
- Direction
- increasee0
- Value
- 33e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of M. fructicola conidial germination ranging from 33 to 64% for cultivars Lucie Tardibelle and Red Haven heat‐treated peaches, respectively, compared to the control”
Claim · model-written summary
Heat-treated Red Haven peaches increased M. fructicola conidial germination by 64% versus control.
- Taxon
- peachesPrunus persicae0
- Material
- Red Havene0
- Treatment
- heat‐treatede0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- M. fructicola conidial germinatione0
- Direction
- increasee0
- Value
- 64%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of M. fructicola conidial germination ranging from 33 to 64% for cultivars Lucie Tardibelle and Red Haven heat‐treated peaches, respectively, compared to the control”
Claim · model-written summary
Fifty volatile compounds were detected in Lucie Tardibelle peach blends.
- Taxon
- peachesPrunus persicae0
- Material
- Lucie Tardibellee0
- Outcome
- compoundse0
- Value
- Fiftye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fifty compounds were detected by SPME/GC‐MS in volatile blends of cv. Lucie Tardibelle peaches”
Claim · model-written summary
Peach volatile emission differed significantly between heated and control fruit.
- Taxon
- peachPrunus persicat0
- Treatment
- heatede0
- Outcome
- volatile emissione0
- Comparator
- control fruite0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences in volatile emission were observed among heated and control fruit”
t0“peach”
Claim · model-written summary
Acetaldehyde was 15-fold higher in heated peaches than unheated fruit.
- Taxon
- peachPrunus persicat0
- Treatment
- heated fruite0
- Outcome
- acetaldehydee0
- Direction
- highere0
- Value
- 15e0
- Comparator
- unheated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acetaldehyde and ethanol were detected at levels 15‐ and 28‐fold higher in heated fruit compared to unheated ones, respectively”
t0“peach”
Claim · model-written summary
Ethanol was 28-fold higher in heated peaches than unheated fruit.
- Taxon
- peachPrunus persicat0
- Treatment
- heated fruite0
- Outcome
- ethanole0
- Direction
- highere0
- Value
- 28‐folde0
- Comparator
- unheated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acetaldehyde and ethanol were detected at levels 15‐ and 28‐fold higher in heated fruit compared to unheated ones, respectively”
t0“peach”
Claim · model-written summary
Acetaldehyde stimulated M. fructicola conidial germination by 60% in vitro.
- Taxon
- peachPrunus persicat0
- Treatment
- acetaldehyde (0·6 μL L −1 )e0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- M. fructicola conidial germinatione0
- Direction
- stimulatorye0
- Value
- 60e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stimulatory effect (60 and 15%) of acetaldehyde (0·6 μL L −1 ) and ethanol (0·2 μL L −1 ) on M. fructicola conidial germination and mycelial growth, respectively”
t0“peach”
Claim · model-written summary
Ethanol stimulated M. fructicola mycelial growth by 15% in vitro.
- Taxon
- peachPrunus persicat0
- Treatment
- ethanol (0·2 μL L −1 )e0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- mycelial growthe0
- Direction
- stimulatorye0
- Value
- 15%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stimulatory effect (60 and 15%) of acetaldehyde (0·6 μL L −1 ) and ethanol (0·2 μL L −1 ) on M. fructicola conidial germination and mycelial growth, respectively”
t0“peach”
Claim · model-written summary
Volatiles from heat-treated peaches could stimulate M. fructicola germination immediately after treatment.
- Taxon
- peachesPrunus persicae0
- Treatment
- heat‐treatede0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- M. fructicola conidial germinatione0
- Qualifier
- volatile organic compounds ( VOC s)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“volatile organic compounds ( VOC s) emitted from heat‐treated peaches could stimulate M. fructicola conidial germination, increasing brown rot incidence in treated peaches when the inoculation occurs immediately after HWT”
Claim · model-written summary
The authors link heat-treated peach volatiles to increased brown rot incidence after immediate inoculation.
- Taxon
- peachesPrunus persicae0
- Treatment
- HWTe0
- Interactor
- M. fructicolaMonilinia fructicolae0pathogen
- Outcome
- brown rot incidencee0
- Direction
- increasinge0
- Qualifier
- volatile organic compounds ( VOC s)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“volatile organic compounds ( VOC s) emitted from heat‐treated peaches could stimulate M. fructicola conidial germination, increasing brown rot incidence in treated peaches when the inoculation occurs immediately after HWT”
The same questions in other papers
ethanol · Monilinia fructicola · Prunus persica (peach)Positive and negative results
2 in the opposite direction
- positive
- positive
heat · Monilinia fructicola · Prunus persica (peach)Positive and negative results
2 in the opposite direction
- positive
- positive
heat · disease · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 8 reporting no difference from an alternative
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →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.