Paper · 2011 · Journal of Northwest A & F University

Effects of GA_3 on the fruit sugar accumulation and related enzyme activities in sugar metabolism of grape

Qiangqing Zheng

9
claims
12
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

【Objective】 The effects of GA3 on the fruit sugar accumulation and sugar metabolism during the grape fruit development were discussed.【Method】 Experiment was conducted with 3-year-old 'Red globe' grape trees,the effect of GA3 on the fruit development,sugar accumulation and related enzyme activities in sugar metabolism of grape were studied after spraying GA3(10,20 and 30 mg/L) on the fruit before blossoming and after blossoming.【Result】 1)Longitudinal diameter and traverse diameter of grape increased after treated by exogenous plant hormone,the fruit shape index decreased,the average fruit weight,the average fruit cluster and the soluble solid content of grape increased after treated by GA3.2)The main sugar of grape is hexose,and the rate of sugar accumulation and the sugar content increased after treated by GA3,but the treatment didn't change the total current of sugar accumulation.3)At the early stage of grape development the activity of acid invertase and neutral invertase increased,while at the later stage of grape berries development,the activity of sucrose synthnase increased,with T2(20 mg/L GA3) being most significant.【Conclusion】 It showed that the exogenous plant hormone may regulate grape sugar accumulation by changing the sucrose-metabolizing enzymes in sugar.

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous hormone increased grape longitudinal and transverse diameters.

Taxon
grapee0
Treatment
exogenous plant hormonee0
Outcome
Longitudinal diameter and traverse diametere0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“Longitudinal diameter and traverse diameter of grape increased after treated by exogenous plant hormone”

✓ located verbatim in the source · abstract, characters 443–546 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Hormone treatment decreased grape fruit shape index.

Taxon
grapee1
Treatment
exogenous plant hormonee1
Outcome
fruit shape indexe0
Direction
decreasede0

Not reportedComparator

Verbatim

e0

“the fruit shape index decreased”

✓ located verbatim in the source · abstract, characters 547–578 · show in text ↑
e1

“Longitudinal diameter and traverse diameter of grape increased after treated by exogenous plant hormone”

✓ located verbatim in the source · abstract, characters 443–546 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GA3 increased average fruit weight, average fruit cluster and soluble solid content of grape.

Taxon
grapee0
Treatment
GA3e0
Outcome
average fruit weight,the average fruit cluster and the soluble solid contente0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“the average fruit weight,the average fruit cluster and the soluble solid content of grape increased after treated by GA3.”

✓ located verbatim in the source · abstract, characters 579–700 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GA3 increased grape sugar accumulation rate and sugar content.

Taxon
grapee0
Treatment
GA3e0
Outcome
rate of sugar accumulation and the sugar contente0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“The main sugar of grape is hexose,and the rate of sugar accumulation and the sugar content increased after treated by GA3”

✓ located verbatim in the source · abstract, characters 702–823 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

GA3 did not change the total current of grape sugar accumulation.

Taxon
grapee1
Treatment
GA3e1
Outcome
total current of sugar accumulatione0
Direction
didn't changee0

Not reportedComparator

Verbatim

e0

“but the treatment didn't change the total current of sugar accumulation.”

✓ located verbatim in the source · abstract, characters 824–896 · show in text ↑
e1

“The main sugar of grape is hexose,and the rate of sugar accumulation and the sugar content increased after treated by GA3”

✓ located verbatim in the source · abstract, characters 702–823 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GA3 increased acid and neutral invertase activity early in grape development.

Taxon
grapee0
Organ / stage
early stage of grape developmente0
Treatment
GA3e1
Gene
acid invertase and neutral invertasee0
Outcome
activity of acid invertase and neutral invertasee0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“At the early stage of grape development the activity of acid invertase and neutral invertase increased”

✓ located verbatim in the source · abstract, characters 898–1000 · show in text ↑
e1

“T2(20 mg/L GA3) being most significant”

✓ located verbatim in the source · abstract, characters 1104–1142 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Later in grape berry development, sucrose synthnase activity increased, with T2 at 20 mg/L GA3 most significant.

Taxon
grapee0
Organ / stage
later stage of grape berries developmente0
Treatment
T2(20 mg/L GA3)e0
Gene
sucrose synthnasee0
Outcome
activity of sucrose synthnasee0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“at the later stage of grape berries development,the activity of sucrose synthnase increased,with T2(20 mg/L GA3) being most significant.”

✓ located verbatim in the source · abstract, characters 1007–1143 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Exogenous hormone may regulate grape sugar accumulation by changing sucrose-metabolizing enzymes.

Taxon
grapee0
Treatment
exogenous plant hormonee0
Gene
sucrose-metabolizing enzymese0
Outcome
sugar accumulatione0
Qualifier
maye0

Verbatim

e0

“It showed that the exogenous plant hormone may regulate grape sugar accumulation by changing the sucrose-metabolizing enzymes in sugar.”

✓ located verbatim in the source · abstract, characters 1156–1291 · show in text ↑

Gibberellic acid · molecular: metabolites · VitisResults differ

30 papers: 23 positive, 7 negative or no effect

22 papers in the same direction as this paper · 7 in the opposite direction

  1. negative
  2. no effect
  3. no effect

26 papers more in this group

See all 30 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.