Paper · 1999 · Plant Nutrition and Fertilizing Science

EFFECT OF BORON ON CELL?WALL ENZYME ACTIVITY OF DIFFERENT RAPE CULTIVARS

Yang Yu

10
claims
32
verbatim quotes
1
citations
1
research areas
—
Not open access

Abstract

Under the condition of solution culture, the effect of boron on the cell walll POD(peroxidase) activity and IAA(indole 3 acetic acid) oxydase activity of a typical B effecient and a B?ineffecient rape( brassica napus L.) cultivars were studied. The results showed that the activity of cell?wall POD significantly increased in root and significantly decreased in upper leaf of the two cultivars when B was removed from the solution at seedling, bolting and flowering stages. B starvation at the three stages had little effect on the cell?wall POD activity in lower leaf, but the activity of the emzyme in lower leaf was greatly higher in B?effecient cultivar than that in B?ineffecient cultivar. Under B deficient condition, the activity of cell?wall IAA oxydase significantly increased in root at bolting and flowering stages but increased at seedling stage insignificantly. The activity of the enzyme significantly decreased in upper leaf, except that at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar. B deficiency had no obvious effect on the enzyme activity in lower leaf, except that at flowering stage, the enzyme activity decreased significantly in the B?ineffecient cultivar.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 10

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Boron removal significantly increased root cell-wall POD at seedling, bolting and flowering.

Organ / stage
roote0
Treatment
B was removed from the solutione0
Gene
cell?wall PODe0
Outcome
activity of cell?wall PODe0
Direction
increasede0
Qualifier
seedling, bolting and flowering stagese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the activity of cell?wall POD significantly increased in root and significantly decreased in upper leaf of the two cultivars when B was removed from the solution at seedling, bolting and flowering stages.”

✓ located verbatim in the source · abstract, characters 269–473 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Boron removal significantly decreased upper leaf cell-wall POD at all three stages.

Organ / stage
upper leafe0
Treatment
B was removed from the solutione0
Gene
cell?wall PODe0
Outcome
activity of cell?wall PODe0
Direction
decreasede0
Qualifier
seedling, bolting and flowering stagese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the activity of cell?wall POD significantly increased in root and significantly decreased in upper leaf of the two cultivars when B was removed from the solution at seedling, bolting and flowering stages.”

✓ located verbatim in the source · abstract, characters 269–473 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Boron starvation had little effect on lower leaf cell-wall POD.

Organ / stage
lower leafe0
Treatment
B starvatione0
Gene
cell?wall PODe0
Outcome
cell?wall POD activitye0
Direction
little effecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“B starvation at the three stages had little effect on the cell?wall POD activity in lower leaf”

✓ located verbatim in the source · abstract, characters 474–568 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower leaf POD activity was much higher in the B-efficient cultivar than the B-inefficient cultivar.

Material
B?effecient cultivare0
Organ / stage
lower leafe0
Outcome
activity of the emzymee0
Direction
highere0
Comparator
B?ineffecient cultivare0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the activity of the emzyme in lower leaf was greatly higher in B?effecient cultivar than that in B?ineffecient cultivar.”

✓ located verbatim in the source · abstract, characters 574–694 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Under boron deficiency, root IAA oxidase rose significantly at bolting and flowering.

Organ / stage
roote0
Treatment
B deficient conditione0
Gene
cell?wall IAA oxydasee0
Outcome
activity of cell?wall IAA oxydasee0
Direction
increasede0
Qualifier
bolting and flowering stagese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Under B deficient condition, the activity of cell?wall IAA oxydase significantly increased in root at bolting and flowering stages”

✓ located verbatim in the source · abstract, characters 695–825 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Under boron deficiency, root IAA oxidase rose insignificantly at seedling stage.

Organ / stage
roote1
Treatment
B deficient conditione1
Outcome
activity of cell?wall IAA oxydasee1
Direction
increasede0
Qualifier
seedling stagee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“but increased at seedling stage insignificantly.”

✓ located verbatim in the source · abstract, characters 826–874 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
e1

“Under B deficient condition, the activity of cell?wall IAA oxydase significantly increased in root at bolting and flowering stages”

✓ located verbatim in the source · abstract, characters 695–825 · show in text ↑
e2

“B deficiency had no obvious effect on the enzyme activity in lower leaf”

✓ located verbatim in the source · abstract, characters 1042–1113 · show in text ↑
e3

“The activity of the enzyme significantly decreased in upper leaf, except that at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar.”

✓ located verbatim in the source · abstract, characters 875–1041 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Boron deficiency significantly decreased upper leaf IAA oxidase activity except at flowering in the B-efficient cultivar.

Organ / stage
upper leafe0
Treatment
B deficiencye2
Outcome
activity of the enzymee0
Direction
decreasede0
Qualifier
except that at flowering stagee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The activity of the enzyme significantly decreased in upper leaf, except that at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar.”

✓ located verbatim in the source · abstract, characters 875–1041 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
e1

“Under B deficient condition, the activity of cell?wall IAA oxydase significantly increased in root at bolting and flowering stages”

✓ located verbatim in the source · abstract, characters 695–825 · show in text ↑
e2

“B deficiency had no obvious effect on the enzyme activity in lower leaf”

✓ located verbatim in the source · abstract, characters 1042–1113 · show in text ↑
e3

“The activity of the enzyme significantly decreased in upper leaf, except that at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar.”

✓ located verbatim in the source · abstract, characters 875–1041 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

At flowering, upper leaf IAA oxidase did not change significantly in the B-efficient cultivar.

Material
B?effecient cultivare0
Organ / stage
upper leafe3
Treatment
B deficiencye2
Outcome
enzyme activitye0
Direction
changed insignificantlye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar.”

✓ located verbatim in the source · abstract, characters 953–1041 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
e1

“Under B deficient condition, the activity of cell?wall IAA oxydase significantly increased in root at bolting and flowering stages”

✓ located verbatim in the source · abstract, characters 695–825 · show in text ↑
e2

“B deficiency had no obvious effect on the enzyme activity in lower leaf”

✓ located verbatim in the source · abstract, characters 1042–1113 · show in text ↑
e3

“The activity of the enzyme significantly decreased in upper leaf, except that at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar.”

✓ located verbatim in the source · abstract, characters 875–1041 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Boron deficiency generally had no obvious effect on lower leaf IAA oxidase.

Organ / stage
lower leafe0
Treatment
B deficiencye0
Outcome
enzyme activitye0
Direction
no obvious effecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“B deficiency had no obvious effect on the enzyme activity in lower leaf”

✓ located verbatim in the source · abstract, characters 1042–1113 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

At flowering, boron deficiency significantly decreased lower leaf IAA oxidase in the B-inefficient cultivar.

Material
B?ineffecient cultivare0
Organ / stage
lower leafe2
Treatment
B deficiencye2
Outcome
enzyme activitye0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“at flowering stage, the enzyme activity decreased significantly in the B?ineffecient cultivar.”

✓ located verbatim in the source · abstract, characters 1127–1221 · show in text ↑
t0

“RAPE”

✓ located verbatim in the source · title, characters 58–62 · show in text ↑
e1

“Under B deficient condition, the activity of cell?wall IAA oxydase significantly increased in root at bolting and flowering stages”

✓ located verbatim in the source · abstract, characters 695–825 · show in text ↑
e2

“B deficiency had no obvious effect on the enzyme activity in lower leaf”

✓ located verbatim in the source · abstract, characters 1042–1113 · show in text ↑
e3

“The activity of the enzyme significantly decreased in upper leaf, except that at flowering stage, the enzyme activity changed insignificantly in B?effecient cultivar.”

✓ located verbatim in the source · abstract, characters 875–1041 · show in text ↑

boron atom · physiology: antioxidant enzymes · Brassica napus (oilseed rape)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

2 papers in the same direction as this paper · 3 in the opposite direction

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
  2. positive
  3. positive

2 papers more in this group

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boron atom · molecular: metabolites · Brassica napus (oilseed rape)Positive and negative results

10 papers: 8 positive, 2 negative or no effect

7 papers in the same direction as this paper · 2 in the opposite direction

This paper is about lacking the nutrient, so it counts the other way round here.

  1. negative
  2. no effect
  3. positive

6 papers more in this group

See all 10 papers →

boron atom · physiology: enzyme activity · Brassica napus (oilseed rape)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
See all 2 papers →

boron atom · soil: biology · Brassica napus (oilseed rape)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
  2. positive
See all 3 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.