Abstract
1. In order to investigate the mechanism of gibberellin action, effects of gibberellin on the respiration metabolism were observed with the leaves of Muscat of Alexandria grape.2. In the case of the excised leaves immersed in 100ppm gibberellin aqueous solution, respiration showed no significant difference in O2 uptake but a sharp rise in CO2 output, compared with non treatment. Respiration quotient was 1.3-1.6.3. In the case of the attached leaves sprayed with 100ppm gibberellin aqueous solution, respiration on the first day after treatment showed a decrease in O2 uptake and an increase in CO2 output.These abnormal respiration activities were restored as before, on the third day.4. The organic acids of leaves on the first day after treatment with 100ppm gibberellin aqueous solution had been fractionated by column chromatography.As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.5. In view of above results, firstly malic dehydrogenase activity, in vitro, was measured with and without addition of gibberellin.As a result, gibberellin in a concentration of 1ppm inhibited malic dehydrogenase activity almost completely.
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Claims 13
Claim · model-written summary
Gibberellin treatment of excised grape leaves produced no significant difference in O2 uptake.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Material
- Muscat of Alexandriat1
- Treatment
- 100ppm gibberellin aqueous solutione0
- Outcome
- O2 uptakee0
- Direction
- no significant differencee0
- Comparator
- non treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the case of the excised leaves immersed in 100ppm gibberellin aqueous solution, respiration showed no significant difference in O2 uptake but a sharp rise in CO2 output, compared with non treatment.”
t0“Vitis vinifera L”
t1“Muscat of Alexandria grape”
Claim · model-written summary
Gibberellin treatment of excised grape leaves produced sharp rise in CO2 output.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Material
- Muscat of Alexandriat1
- Treatment
- 100ppm gibberellin aqueous solutione0
- Outcome
- CO2 outpute0
- Direction
- sharp risee0
- Comparator
- non treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the case of the excised leaves immersed in 100ppm gibberellin aqueous solution, respiration showed no significant difference in O2 uptake but a sharp rise in CO2 output, compared with non treatment.”
t0“Vitis vinifera L”
t1“Muscat of Alexandria grape”
Claim · model-written summary
Respiration quotient of treated excised grape leaves was 1.3-1.6.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Outcome
- Respiration quotiente0
- Value
- 1.3-1.6e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Respiration quotient was 1.3-1.6.”
t0“Vitis vinifera L”
Claim · model-written summary
Sprayed attached grape leaves showed a decrease in O2 uptake on the first day.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- 100ppm gibberellin aqueous solutione0
- Outcome
- O2 uptakee0
- Direction
- decreasee0
- Qualifier
- first day after treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the case of the attached leaves sprayed with 100ppm gibberellin aqueous solution, respiration on the first day after treatment showed a decrease in O2 uptake and an increase in CO2 output.”
t0“Vitis vinifera L”
Claim · model-written summary
Sprayed attached grape leaves showed a increase in CO2 output on the first day.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- 100ppm gibberellin aqueous solutione0
- Outcome
- CO2 outpute0
- Direction
- increasee0
- Qualifier
- first day after treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the case of the attached leaves sprayed with 100ppm gibberellin aqueous solution, respiration on the first day after treatment showed a decrease in O2 uptake and an increase in CO2 output.”
t0“Vitis vinifera L”
Claim · model-written summary
Abnormal respiration activities returned to prior levels on the third day.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Outcome
- respiration activitiese0
- Direction
- restored as beforee0
- Qualifier
- third daye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“These abnormal respiration activities were restored as before, on the third day.”
t0“Vitis vinifera L”
Claim · model-written summary
Treated grape leaves contained more pyrvic, glyoxyric, acetic than untreated leaves.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- treated leavese0
- Outcome
- pyrvic, glyoxyric, acetice0
- Direction
- moree0
- Comparator
- non treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.”
t0“Vitis vinifera L”
Claim · model-written summary
Treated grape leaves contained more fumaric, oxalic, malic than untreated leaves.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- treated leavese0
- Outcome
- fumaric, oxalic, malice0
- Direction
- moree0
- Comparator
- non treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.”
t0“Vitis vinifera L”
Claim · model-written summary
Treated grape leaves contained more tartaric than untreated leaves.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- treated leavese0
- Outcome
- tartarice0
- Direction
- moree0
- Comparator
- non treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.”
t0“Vitis vinifera L”
Claim · model-written summary
Treated grape leaves contained less oxaloacetic, α-ketoglutaric, citric than untreated leaves.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- treated leavese0
- Outcome
- oxaloacetic, α-ketoglutaric, citrice0
- Direction
- lesse0
- Comparator
- non treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.”
t0“Vitis vinifera L”
Claim · model-written summary
Treated grape leaves contained less isocitric acid than untreated leaves.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- treated leavese0
- Outcome
- isocitric acide0
- Direction
- lesse0
- Comparator
- non treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.”
t0“Vitis vinifera L”
Claim · model-written summary
Treated grape leaves contained approximately equal amounts succinic acid than untreated leaves.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- treated leavese0
- Outcome
- succinic acide0
- Direction
- approximately equal amountse0
- Comparator
- non treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, the treated leaves, compared with non treated, contained more pyrvic, glyoxyric, acetic, fumaric, oxalic, malic and tartaric, but less oxaloacetic, α-ketoglutaric, citric and isocitric acid, while succinic acid occured in approximately equal amounts in both treated and non treated.”
t0“Vitis vinifera L”
Claim · model-written summary
Gibberellin at 1ppm almost completely inhibited malic dehydrogenase activity in vitro.
- Taxon
- Vitis vinifera L
Vitis viniferat0 - Treatment
- gibberellin in a concentration of 1ppme0
- Gene
- malic dehydrogenasee0
- Outcome
- malic dehydrogenase activitye0
- Direction
- inhibitede0
- Qualifier
- almost completelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As a result, gibberellin in a concentration of 1ppm inhibited malic dehydrogenase activity almost completely.”
t0“Vitis vinifera L”
The same questions in other papers
class · yield · Vitis vinifera (wine grape)Results agree
6 papers in the same direction as this paper
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See all 7 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.