Abstract
Faba bean (Vicia faba L.) seeds were treated with H2O [nonprimed (NP)] or 2% CaCl2 [primed (P)] before germination for 6 h. After seven days, seedlings were exposed to 0 or 50 µM CdCl2 concentrations for three weeks. Under Cd treatment, P plants showed an improvement of gas-exchange characteristics, chlorophyll (Chl) and carotenoids contents as compared to NP plants subjected to Cd stress. Additionally, the values of Chl fluorescence were relatively similar to those of control, implying that no photodamage occurred. Moreover, under 50 µM Cd, the P plants exhibited lesser accumulation of hydrogen peroxide and superoxide radicals in leaves as compared to NP plants. Likewise, results showed that CaCl2-seed pretreatment alleviated adverse effects of Cd on electrolyte leakage. In conclusion, CaCl2 improved photosynthesis attributes of faba bean plants subjected to Cd stress by mitigating the adverse effects of Cd toxicity through a reduced generation of reactive oxygen species.
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Claims 7
Claim · model-written summary
Under cadmium, primed faba bean had improved gas-exchange characteristics versus nonprimed plants.
- Taxon
- faba bean
Vicia fabat0 - Treatment
- 2% CaCl2e1
- Outcome
- gas-exchange characteristicse0
- Direction
- improvemente0
- Qualifier
- Cd treatmente0
- Comparator
- NP plants subjected to Cd stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Cd treatment, P plants showed an improvement of gas-exchange characteristics, chlorophyll (Chl) and carotenoids contents as compared to NP plants subjected to Cd stress.”
e1“2% CaCl2 [primed (P)]”
t0“faba bean”
Claim · model-written summary
Under cadmium, primed faba bean had improved chlorophyll and carotenoid contents versus nonprimed plants.
- Taxon
- faba beanVicia fabat0
- Treatment
- 2% CaCl2e1
- Outcome
- chlorophyll (Chl) and carotenoids contentse0
- Direction
- improvemente0
- Comparator
- NP plants subjected to Cd stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Cd treatment, P plants showed an improvement of gas-exchange characteristics, chlorophyll (Chl) and carotenoids contents as compared to NP plants subjected to Cd stress.”
e1“2% CaCl2 [primed (P)]”
t0“faba bean”
Claim · model-written summary
Primed plants under cadmium had chlorophyll fluorescence values relatively similar to control, implying no photodamage.
- Taxon
- faba beanVicia fabat0
- Outcome
- values of Chl fluorescencee0
- Direction
- relatively similare0
- Qualifier
- no photodamage occurrede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the values of Chl fluorescence were relatively similar to those of control, implying that no photodamage occurred.”
t0“faba bean”
Claim · model-written summary
Under 50 µM Cd, primed leaves accumulated less hydrogen peroxide than nonprimed leaves.
- Taxon
- faba beanVicia fabat0
- Organ / stage
- leavese0
- Treatment
- 2% CaCl2e1
- Outcome
- accumulation of hydrogen peroxidee0
- Direction
- lessere0
- Qualifier
- 50 µM Cde0
- Comparator
- NP plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 50 µM Cd, the P plants exhibited lesser accumulation of hydrogen peroxide and superoxide radicals in leaves as compared to NP plants.”
e1“2% CaCl2 [primed (P)]”
t0“faba bean”
Claim · model-written summary
Under 50 µM Cd, primed leaves accumulated less superoxide radicals than nonprimed leaves.
- Taxon
- faba beanVicia fabat0
- Organ / stage
- leavese0
- Treatment
- 2% CaCl2e1
- Outcome
- superoxide radicals in leavese0
- Direction
- lessere0
- Comparator
- NP plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 50 µM Cd, the P plants exhibited lesser accumulation of hydrogen peroxide and superoxide radicals in leaves as compared to NP plants.”
e1“2% CaCl2 [primed (P)]”
t0“faba bean”
Claim · model-written summary
Calcium chloride seed pretreatment alleviated cadmium effects on electrolyte leakage.
- Taxon
- faba beanVicia fabat0
- Treatment
- CaCl2-seed pretreatmente0
- Outcome
- electrolyte leakagee0
- Direction
- alleviatede0
- Comparator
- nonprimed (NP)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CaCl2-seed pretreatment alleviated adverse effects of Cd on electrolyte leakage.”
e1“nonprimed (NP)”
t0“faba bean”
Claim · model-written summary
The authors attribute improved photosynthesis under cadmium to reduced reactive oxygen species generation after CaCl2 priming.
- Taxon
- faba beanVicia fabae0
- Treatment
- CaCl2e0
- Outcome
- photosynthesis attributese0
- Qualifier
- reduced generation of reactive oxygen speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CaCl2 improved photosynthesis attributes of faba bean plants subjected to Cd stress by mitigating the adverse effects of Cd toxicity through a reduced generation of reactive oxygen species.”
The same questions in other papers
calcium chloride dihydrate · physiology: oxidative · Vicia faba (faba bean)Positive and negative results
1 in the opposite direction
- no effect
calcium chloride dihydrate · physiology: gas exchange · Vicia faba (faba bean)Positive and negative results
1 in the opposite direction
- negative
calcium chloride dihydrate · physiology: pigments · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- positive
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.