Paper · 2013 · Notulae Botanicae Horti Agrobotanici Cluj-Napoca

Alleviation of Cadmium Toxicity in Pisum sativum L. Seedlings by Calcium Chloride

Hossam S. EL-BELTAGI; Heba I. MOHAMED

6
claims
12
verbatim quotes
65
citations
1
research areas
✓
Open access · cc-by

Abstract

The present investigation was carried out to study the role of calcium chloride in enhancing tolerance and reducing cadmium toxicity in pea seedlings. Some treatment with 1 and 5 mM CaCl2 mitigated cadmium stress by increasing antioxidant enzyme activities: catalase (CAT), peroxidase (POD) and polyphenol oxidase (PPO), as well as by elevating contents of ascorbic acid (ASA), tocopherol and carotenoids. On the other hand, total carbohydrate and total soluble proteins decreased with increasing cadmium concentrations in comparison with control plants. However, total phenol, total free amino acids, proline and lipid peroxidation increased with increasing concentrations of cadmium acetate. Electrophoretic studies of protein revealed that cadmium treatments alone or in combination with calcium chloride were associated with the disappearance of some bands or appearance of new bands in pea seedlings. Electrophoretic studies of α-esterase, β-esterase and acid phosphatase isozymes showed wide variations in their intensities and densities.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium chloride under cadmium stress increased catalase, peroxidase, and polyphenol oxidase activities.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
1 and 5 mM CaCl2e0
Outcome
antioxidant enzyme activities: catalase (CAT), peroxidase (POD) and polyphenol oxidase (PPO)e0
Direction
increasinge0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“1 and 5 mM CaCl2 mitigated cadmium stress by increasing antioxidant enzyme activities: catalase (CAT), peroxidase (POD) and polyphenol oxidase (PPO)”

✓ located verbatim in the source · abstract, characters 171–319 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 35–51 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium chloride under cadmium stress elevated ascorbic acid, tocopherol, and carotenoid contents.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Outcome
contents of ascorbic acid (ASA), tocopherol and carotenoidse0
Direction
elevatinge0

Not reportedTreatmentComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“as well as by elevating contents of ascorbic acid (ASA), tocopherol and carotenoids”

✓ located verbatim in the source · abstract, characters 321–404 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 35–51 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing cadmium decreased total carbohydrate and soluble protein relative to control plants.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
increasing cadmium concentrationse0
Outcome
total carbohydrate and total soluble proteinse0
Direction
decreasede0
Comparator
control plantse0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“total carbohydrate and total soluble proteins decreased with increasing cadmium concentrations in comparison with control plants”

✓ located verbatim in the source · abstract, characters 425–553 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 35–51 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing cadmium acetate increased total phenol, free amino acids, proline, and lipid peroxidation.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
increasing concentrations of cadmium acetatee0
Outcome
total phenol, total free amino acids, proline and lipid peroxidatione0
Direction
increasede0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“total phenol, total free amino acids, proline and lipid peroxidation increased with increasing concentrations of cadmium acetate”

✓ located verbatim in the source · abstract, characters 564–692 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 35–51 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cadmium alone or with calcium chloride changed seedling protein band patterns.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Treatment
cadmium treatments alone or in combination with calcium chloridee0
Outcome
disappearance of some bands or appearance of new bands in pea seedlingse0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“cadmium treatments alone or in combination with calcium chloride were associated with the disappearance of some bands or appearance of new bands in pea seedlings”

✓ located verbatim in the source · abstract, characters 743–904 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 35–51 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Alpha- and beta-esterase and acid phosphatase isozymes varied in intensity and density.

Taxon
Pisum sativum L.Lathyrus oleraceust0
Gene
α-esterase, β-esterase and acid phosphatase isozymese0
Outcome
wide variations in their intensities and densitiese0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“α-esterase, β-esterase and acid phosphatase isozymes showed wide variations in their intensities and densities”

✓ located verbatim in the source · abstract, characters 933–1043 · show in text ↑
t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 35–51 · show in text ↑

cadmium atom · physiology: osmolytes · Lathyrus oleraceus (pea)Results differ

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative
See all 4 papers →

cadmium atom · physiology: oxidative · Lathyrus oleraceus (pea)Positive and negative results

13 papers: 1 positive, 12 negative or no effect

11 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. negative

9 papers more in this group

See all 13 papers →

calcium chloride dihydrate · physiology: antioxidant enzymes · Lathyrus oleraceus (pea)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 →

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.