Paper · 1998 · Biologia Plantarum

Responses to chilling stress in French bean seedlings: antioxidant compounds

H. M. El-Saht

7
claims
14
verbatim quotes
21
citations
1
research areas
✓
Open access

Abstract

French bean (Phaseolus vulgaris L. cv. Contender) plants at five developmental stages (4, 8, 12, 16 and 20 d after sowing) were exposed to one of three treatments: 1 - 25 °C (control), 2 - exposure to chilling at 10 °C only for 2 d prior to sampling, and 3 - long-term exposure to chilling at 10 °C. Short- and long-term chilling decreased plant growth. Higher concentrations of ascorbate and glutathione were found in the chilling-treated plants throughout the different period of growth in comparison with those in the control plants. The activities of superoxide dismutase, ascorbate peroxidase, and glutathione reductase increased in the chilling-treated seedlings while activities of catalase and peroxidase and of β-carotene content decreased in young chilling-treated plants and slightly increased in older ones.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 7

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Short- and long-term chilling decreased French bean growth.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
Short- and long-term chillinge1
Outcome
plant growthe1
Direction
decreasede1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“Short- and long-term chilling decreased plant growth.”

✓ located verbatim in the source · abstract, characters 300–353 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chilling raised ascorbate and glutathione concentrations throughout growth.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
chilling-treated plantse1
Outcome
concentrations of ascorbate and glutathionee1
Direction
Highere1
Qualifier
throughout the different period of growthe1
Comparator
control plantse1

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“Higher concentrations of ascorbate and glutathione were found in the chilling-treated plants throughout the different period of growth in comparison with those in the control plants.”

✓ located verbatim in the source · abstract, characters 354–536 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chilling increased superoxide dismutase, ascorbate peroxidase, and glutathione reductase activities.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
chilling-treated seedlingse1
Outcome
activities of superoxide dismutase, ascorbate peroxidase, and glutathione reductasee1
Direction
increasede1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“The activities of superoxide dismutase, ascorbate peroxidase, and glutathione reductase increased in the chilling-treated seedlings”

✓ located verbatim in the source · abstract, characters 537–668 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Catalase and peroxidase activities fell in young chilled plants.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
chilling-treated plantse1
Outcome
activities of catalase and peroxidasee1
Direction
decreasede1
Qualifier
younge1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“activities of catalase and peroxidase and of β-carotene content decreased in young chilling-treated plants”

✓ located verbatim in the source · abstract, characters 675–781 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

β-carotene content fell in young chilled plants.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
chilling-treated plantse1
Outcome
β-carotene contente1
Direction
decreasede1
Qualifier
younge1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“β-carotene content decreased in young chilling-treated plants”

✓ located verbatim in the source · abstract, characters 720–781 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Catalase and peroxidase activities rose slightly in older chilled plants.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
chilling-treated plantse1
Outcome
activities of catalase and peroxidasee1
Direction
increasede1
Qualifier
older onese1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“activities of catalase and peroxidase and of β-carotene content decreased in young chilling-treated plants and slightly increased in older ones.”

✓ located verbatim in the source · abstract, characters 675–819 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

β-carotene content rose slightly in older chilled plants.

Taxon
French beanPhaseolus vulgarise0
Material
Contendere0
Treatment
chilling-treated plantse1
Outcome
β-carotene contente1
Direction
increasede1
Qualifier
older onese1

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“French bean (Phaseolus vulgaris L. cv. Contender) plants”

✓ located verbatim in the source · abstract, characters 0–56 · show in text ↑
e1

“β-carotene content decreased in young chilling-treated plants and slightly increased in older ones.”

✓ located verbatim in the source · abstract, characters 720–819 · show in text ↑

cold · physiology: antioxidant enzymes · Phaseolus vulgaris (common bean)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. negative
  2. positive
See all 3 papers →

cold · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results

7 papers: 4 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

3 papers more in this group

See all 7 papers →

cold · growth · Phaseolus vulgaris (common bean)Results agree

10 papers: 0 positive, 10 negative or no effect

9 papers in the same direction as this paper

  1. negative
  2. no effect
  3. negative

6 papers more in this group

See all 10 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.