Abstract
BACKGROUND: Gaseous fumigants are commonly employed to control fungal decay of cold-stored grapes. So far it is not clear if these fumigants, besides the direct interaction against fungal structures, induce transcriptional responses of defensive markers. In order to contribute to understanding the mechanisms by which these fumigants exert their effect, we studied the influence of ozone (O3) and sulfur dioxide (SO2) on the decay caused by Botrytis cinerea, and the quality and expression of the defense-related genes chitinase, β-1,3-glucanase and phenylalanine ammonia-lyase (PAL) in the table grape cultivars 'Redglobe' and 'Sugraone'. RESULTS: The application of SO2 or O3 delayed decay of both table grape cultivars caused by B. cinerea compared with the inoculated control. O3 treatments altered weight loss, firmness and shatter in both cultivars. Significant upregulation of chitinase and β-1,3-glucanase were observed in SO2 -treated 'Redglobe' berries stored at 2 °C. O3 treatment transiently increased the expression of chitinase and PAL in 'Redglobe' and 'Sugraone' berries, respectively. CONCLUSION: Ozone and sulfur dioxide treatments can influence the expression patterns of PAL, chitinase and β-1,3-glucanase to different extents in different grape cultivars and under different exposure conditions. The upregulation of these genes may be involved in the mechanism by which these fumigants inhibit the decay caused by pathogenic fungi.
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Claims 6
Claim · model-written summary
Sulfur dioxide delayed Botrytis decay in both cultivars.
- Taxon
- table grapee0
- Treatment
- SO2e0
- Interactor
- B. cinerea
Botrytis cinereae0pathogen - Outcome
- decay of both table grape cultivars caused by B. cinereae0
- Direction
- delayede0
- Comparator
- inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of SO2 or O3 delayed decay of both table grape cultivars caused by B. cinerea compared with the inoculated control.”
Claim · model-written summary
Ozone delayed Botrytis decay in both cultivars.
- Taxon
- table grapee0
- Treatment
- O3e0
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Outcome
- decay of both table grape cultivars caused by B. cinereae0
- Direction
- delayede0
- Comparator
- inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of SO2 or O3 delayed decay of both table grape cultivars caused by B. cinerea compared with the inoculated control.”
Claim · model-written summary
Ozone altered weight loss, firmness and shatter.
Not reportedComparatorDirection
Verbatim
e0“O3 treatments altered weight loss, firmness and shatter in both cultivars.”
t0“table grapes”
Claim · model-written summary
Sulfur dioxide upregulated chitinase and β-1,3-glucanase in Redglobe berries at 2 °C.
- Taxon
- table grapest0
- Material
- Redglobee0
- Treatment
- SO2 -treatede0
- Gene
- chitinase and β-1,3-glucanasee0
- Outcome
- upregulation of chitinase and β-1,3-glucanasee0
- Direction
- upregulatione0
- Setting
- 2 °Ce0
Not reportedComparator
Verbatim
e0“Significant upregulation of chitinase and β-1,3-glucanase were observed in SO2 -treated 'Redglobe' berries stored at 2 °C.”
t0“table grapes”
Claim · model-written summary
Ozone transiently increased chitinase expression in Redglobe.
- Taxon
- table grapest0
- Material
- Redglobee0
- Treatment
- O3 treatmente0
- Gene
- chitinasee0
- Outcome
- expression of chitinasee0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“O3 treatment transiently increased the expression of chitinase and PAL in 'Redglobe' and 'Sugraone' berries, respectively.”
t0“table grapes”
Claim · model-written summary
Ozone transiently increased PAL expression in Sugraone.
- Taxon
- table grapest0
- Material
- Sugraonee0
- Treatment
- O3 treatmente0
- Gene
- PALe0
- Outcome
- expression of chitinase and PALe0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“O3 treatment transiently increased the expression of chitinase and PAL in 'Redglobe' and 'Sugraone' berries, respectively.”
t0“table grapes”
The same questions in other papers
ozone · molecular: expression · VitisPositive and negative results
1 in the opposite direction
- negative
pollution · Botrytis cinerea · VitisPositive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →ozone · Botrytis cinerea · VitisResults 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.