Paper · 1999

EFFECTS OF CALCIUM ION ON CELL MEMBRANE PERMEA BILITY, ACTIVITIES OF PROTECTIVE ENZYMES AND CONTENT OF PROTECTIVE SUBST ANCES IN APPLE FRUITS

Guan Jun

9
claims
20
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

After treated with CaCl 2, the flesh discs of “Golden Dilicious” apple was significantly increased in Ca 2+ content and decreased in K + leakage, Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase, increase contents of glutathione and ascorbic acid, but decrease H 2O 2 content and relative electroconductance rate at different levels. It is suggested that the increase in protective enzyme activity and protective substance content of fruit by Ca 2+ would favour to protect cell membrane structure.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.

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 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Calcium chloride treatment significantly increased calcium content in apple flesh discs.

Material
Golden Diliciouse0
Organ / stage
flesh discse0
Treatment
CaCl 2e0
Outcome
Ca 2+ contente0
Direction
increasede0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“After treated with CaCl 2, the flesh discs of “Golden Dilicious” apple was significantly increased in Ca 2+ content and decreased in K + leakage”

✓ located verbatim in the source · abstract, characters 0–144 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium chloride treatment decreased potassium leakage from apple flesh discs.

Material
Golden Diliciouse0
Organ / stage
flesh discse0
Treatment
CaCl 2e0
Outcome
K + leakagee0
Direction
decreasede0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“After treated with CaCl 2, the flesh discs of “Golden Dilicious” apple was significantly increased in Ca 2+ content and decreased in K + leakage”

✓ located verbatim in the source · abstract, characters 0–144 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium enhanced superoxide dismutase activity in apple fruit.

Treatment
Ca 2+ at different concentrationse0
Gene
superoxide dismutasee0
Outcome
activities of superoxide dismutasee0
Direction
enhancee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 146–241 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium enhanced catalase activity in apple fruit.

Treatment
Ca 2+ at different concentrationse0
Gene
catalasee0
Outcome
activities of superoxide dismutase and catalasee0
Direction
enhancee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 146–241 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium increased glutathione content in apple fruit.

Treatment
Ca 2+t1
Outcome
contents of glutathionee0
Direction
increasee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“increase contents of glutathione and ascorbic acid”

✓ located verbatim in the source · abstract, characters 243–293 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑
t1

“Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 146–241 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium increased ascorbic acid content in apple fruit.

Treatment
Ca 2+t1
Outcome
ascorbic acide0
Direction
increasee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“increase contents of glutathione and ascorbic acid”

✓ located verbatim in the source · abstract, characters 243–293 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑
t1

“Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 146–241 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium decreased hydrogen peroxide content in apple fruit.

Treatment
Ca 2+t1
Outcome
H 2O 2 contente0
Direction
decreasee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“decrease H 2O 2 content and relative electroconductance rate at different levels.”

✓ located verbatim in the source · abstract, characters 299–380 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑
t1

“Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 146–241 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium decreased relative electroconductance rate in apple fruit.

Treatment
Ca 2+t1
Outcome
relative electroconductance ratee0
Direction
decreasee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“decrease H 2O 2 content and relative electroconductance rate at different levels.”

✓ located verbatim in the source · abstract, characters 299–380 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑
t1

“Ca 2+ at different concentrations could enhance activities of superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 146–241 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors suggest that calcium induced increases in protective enzymes and substances favor cell membrane protection.

Outcome
protect cell membrane structuree0
Qualifier
increase in protective enzyme activity and protective substance contente0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“the increase in protective enzyme activity and protective substance content of fruit by Ca 2+ would favour to protect cell membrane structure.”

✓ located verbatim in the source · abstract, characters 402–544 · show in text ↑
t0

“APPLE”

✓ located verbatim in the source · title, characters 129–134 · show in text ↑

calcium(2+) · molecular: metabolites · Malus domestica (apple)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

calcium(2+) · physiology: oxidative · Malus domestica (apple)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

calcium dichloride · molecular: metabolites · Malus domestica (apple)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  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.