Abstract
ABSTRACT Treatment of peach fruit with UV-C light caused a rapid induction of chitinase, beta-1,3-glucanase, and phenylalanine ammonia lyase (PAL) activities starting 6 h after treatment and reaching maximum levels at 96 h after treatment. By 96 h after UV-C treatment, chitinase, beta-1,3-glucanase, and PAL activities in UV-C-treated fruit were over twofold above the levels observed for the control. In nontreated control fruit, no apparent increase in chitinase and beta-1,3-glucanase activities was detected but a minor increase in PAL activity was seen. The transient increase in chitinase, beta-1,3-glucanase, and PAL activities in UV-C-treated fruit was preceded by a gradual activation of the corresponding genes. UV-C-treated fruit showed an increase in accumulation of beta-1,3-glucanase and chitinase mRNAs at 3 h after treatment, which peaked approximately 96 h posttreatment. A similar induction kinetic pattern was observed for PAL mRNA in response to UV-C treatment, except the induction started 6 h after UV-C treatment. These results show that the response of peach fruit to elicitor treatment is similar to that seen in other plant-elicitors interactions and suggests the involvement of peach biochemical defense responses in UV-C-mediated disease resistance.
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Claims 8
Claim · model-written summary
UV-C induced chitinase, beta-1,3-glucanase and PAL activity from 6 h, peaking at 96 h.
- Taxon
- peach
Prunus persicae0 - Organ / stage
- fruite0
- Treatment
- UV-C lighte0
- Outcome
- chitinase, beta-1,3-glucanase, and phenylalanine ammonia lyase (PAL) activitiese0
- Direction
- inductione0
- Qualifier
- starting 6 h after treatment and reaching maximum levels at 96 h after treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of peach fruit with UV-C light caused a rapid induction of chitinase, beta-1,3-glucanase, and phenylalanine ammonia lyase (PAL) activities starting 6 h after treatment and reaching maximum levels at 96 h after treatment.”
Claim · model-written summary
At 96 h UV-C treated fruit had more than twice the control activities of three defense enzymes.
- Taxon
- peachPrunus persicat0
- Organ / stage
- fruite0
- Treatment
- UV-C treatmente0
- Outcome
- chitinase, beta-1,3-glucanase, and PAL activitiese0
- Direction
- abovee0
- Value
- over twofolde0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By 96 h after UV-C treatment, chitinase, beta-1,3-glucanase, and PAL activities in UV-C-treated fruit were over twofold above the levels observed for the control.”
t0“Peach Fruit”
Claim · model-written summary
In control fruit, chitinase and beta-1,3-glucanase activity did not visibly increase.
- Taxon
- peachPrunus persicat0
- Organ / stage
- fruite0
- Outcome
- chitinase and beta-1,3-glucanase activitiese0
- Direction
- no apparent increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In nontreated control fruit, no apparent increase in chitinase and beta-1,3-glucanase activities was detected but a minor increase in PAL activity was seen.”
t0“Peach Fruit”
Claim · model-written summary
Control fruit showed a minor PAL activity increase.
- Taxon
- peachPrunus persicat0
- Organ / stage
- fruite0
- Outcome
- PAL activitye0
- Direction
- minor increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In nontreated control fruit, no apparent increase in chitinase and beta-1,3-glucanase activities was detected but a minor increase in PAL activity was seen.”
t0“Peach Fruit”
Claim · model-written summary
Defense enzyme activity increases were preceded by activation of corresponding genes.
- Taxon
- peachPrunus persicat0
- Treatment
- UV-Ce0
- Gene
- corresponding genese0
- Outcome
- transient increase in chitinase, beta-1,3-glucanase, and PAL activitiese0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The transient increase in chitinase, beta-1,3-glucanase, and PAL activities in UV-C-treated fruit was preceded by a gradual activation of the corresponding genes.”
t0“Peach Fruit”
Claim · model-written summary
UV-C increased beta-1,3-glucanase and chitinase mRNA from 3 h, peaking near 96 h.
- Taxon
- peachPrunus persicat0
- Treatment
- UV-Ce0
- Outcome
- accumulation of beta-1,3-glucanase and chitinase mRNAse0
- Direction
- increasee0
- Qualifier
- at 3 h after treatment, which peaked approximately 96 h posttreatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV-C-treated fruit showed an increase in accumulation of beta-1,3-glucanase and chitinase mRNAs at 3 h after treatment, which peaked approximately 96 h posttreatment.”
t0“Peach Fruit”
Claim · model-written summary
PAL mRNA induction after UV-C began at 6 h.
- Taxon
- peachPrunus persicat0
- Treatment
- UV-C treatmente0
- Outcome
- PAL mRNAe0
- Direction
- inductione0
- Qualifier
- started 6 h after UV-C treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar induction kinetic pattern was observed for PAL mRNA in response to UV-C treatment, except the induction started 6 h after UV-C treatment.”
t0“Peach Fruit”
Claim · model-written summary
Authors suggested peach biochemical defense responses contribute to UV-C-mediated disease resistance.
- Taxon
- peachPrunus persicae0
- Outcome
- UV-C-mediated disease resistancee0
- Qualifier
- peach biochemical defense responsese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggests the involvement of peach biochemical defense responses in UV-C-mediated disease resistance.”
The same questions in other papers
light · physiology: antioxidant enzymes · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
uv · physiology: antioxidant enzymes · Prunus persica (peach)Results agree
2 papers in the same direction as this paper
- 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.