Abstract
From mid-Oct. to mid-Feb. ,2-year old potted 'NJ72' nectarine(Prunus persica L. Batsch) was transferred at certain intervals from field to the growth chamber at 25℃ to determine the end of bud dormancy. The results show that bud dormancy of 'NJ72' is broken by mid-Jen. The process of the onset of dormancy differs greatly among the leaf and flower buds. The intensity of dormancy is lower in the flower buds compared to that in the leaf buds. In flower buds of peaches treated with low temperature,endogenous peroxide content increases soon after treatment. Catalase activity is shown to increase significantly during chilling and coincides with the increase of the activity of peroxidase and superoxide dismutase. Accumulation of peroxide is accompanied with an increase of peroxidase activity,probably due to substrate adaptability. The rate of respiration of flower buds increases at low temperature during dormancy, among which the rate of the pentose phosphate pathway is also increased, while the rate of the embden-meyerhof pathway decreases and the rate of tricarboxlic acid cycle changes little. Concomitantly,glucose 6-phosphate dehydrogenase activity increases at low temperature during dormancy.
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Claims 12
Claim · model-written summary
NJ72 bud dormancy broke by mid-Jen.
- Taxon
- Prunus persica L. Batsch
Prunus persicat0 - Material
- 'NJ72'e0
- Outcome
- bud dormancye0
- Qualifier
- mid-Jene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bud dormancy of 'NJ72' is broken by mid-Jen”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Dormancy onset differed between leaf and flower buds.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Organ / stage
- leaf and flower budse0
- Outcome
- onset of dormancy differs greatlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The process of the onset of dormancy differs greatly among the leaf and flower buds”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Flower buds had lower dormancy intensity than leaf buds.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Organ / stage
- flower budse0
- Outcome
- intensity of dormancye0
- Direction
- lowere0
- Comparator
- leaf budse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The intensity of dormancy is lower in the flower buds compared to that in the leaf buds”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Low temperature increased endogenous peroxide in flower buds soon after treatment.
- Taxon
- peachesPrunus persicae0
- Organ / stage
- flower budse0
- Treatment
- low temperaturee0
- Outcome
- endogenous peroxide contente0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In flower buds of peaches treated with low temperature,endogenous peroxide content increases soon after treatment”
Claim · model-written summary
Catalase activity increased significantly during chilling.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- chillinge0
- Outcome
- Catalase activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Catalase activity is shown to increase significantly during chilling”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Peroxidase and SOD activities rose alongside catalase during chilling.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- chillinge0
- Outcome
- activity of peroxidase and superoxide dismutasee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Catalase activity is shown to increase significantly during chilling and coincides with the increase of the activity of peroxidase and superoxide dismutase”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Peroxide accumulation accompanied increased peroxidase activity.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Compound
- peroxidee0
- Outcome
- peroxidase activitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Accumulation of peroxide is accompanied with an increase of peroxidase activity”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Flower-bud respiration increased at low temperature during dormancy.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- low temperaturee0
- Outcome
- rate of respiration of flower budse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate of respiration of flower buds increases at low temperature during dormancy”
t0“Prunus persica L. Batsch”
Claim · model-written summary
Pentose phosphate pathway rate increased at low temperature.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- low temperaturet1
- Outcome
- rate of the pentose phosphate pathwaye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of the pentose phosphate pathway is also increased”
t0“Prunus persica L. Batsch”
t1“The rate of respiration of flower buds increases at low temperature during dormancy, among which the rate of the pentose phosphate pathway is also increased, while the rate of the embden-meyerhof pathway decreases and the rate of tricarboxlic acid cycle changes little.”
Claim · model-written summary
Embden-Meyerhof pathway rate decreased at low temperature.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- low temperaturet1
- Outcome
- rate of the embden-meyerhof pathwaye0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of the embden-meyerhof pathway decreases”
t0“Prunus persica L. Batsch”
t1“The rate of respiration of flower buds increases at low temperature during dormancy, among which the rate of the pentose phosphate pathway is also increased, while the rate of the embden-meyerhof pathway decreases and the rate of tricarboxlic acid cycle changes little.”
Claim · model-written summary
Tricarboxylic acid cycle rate changed little at low temperature.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- low temperaturet1
- Outcome
- rate of tricarboxlic acid cyclee0
- Direction
- changes littlee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of tricarboxlic acid cycle changes little”
t0“Prunus persica L. Batsch”
t1“The rate of respiration of flower buds increases at low temperature during dormancy, among which the rate of the pentose phosphate pathway is also increased, while the rate of the embden-meyerhof pathway decreases and the rate of tricarboxlic acid cycle changes little.”
Claim · model-written summary
Glucose 6-phosphate dehydrogenase activity increased at low temperature.
- Taxon
- Prunus persica L. BatschPrunus persicat0
- Treatment
- low temperaturee0
- Gene
- glucose 6-phosphate dehydrogenasee0
- Outcome
- glucose 6-phosphate dehydrogenase activitye0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glucose 6-phosphate dehydrogenase activity increases at low temperature during dormancy”
t0“Prunus persica L. Batsch”
The same questions in other papers
cold · physiology: antioxidant enzymes · Prunus persica (peach)Positive and negative results
1 in the opposite direction
- no effect
cold · physiology: respiration · Prunus persica (peach)Positive and negative results
1 in the opposite direction
- negative
cold · molecular: metabolites · Prunus persica (peach)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
7 papers more in this group
See all 11 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.