Abstract
Proline plays a significant role in the plant response to stress conditions. However, its role in alleviating metal-induced stresses remains elusive. We conducted an experiment to evaluate the ameliorative role of exogenous proline on cadmium-induced inhibitory effects in pigeon pea subjected to different Cd treatments (4 and 8 mg/mL). Cadmium treatments reduced photosynthetic attributes, decreased chlorophyll contents, disturbed nutrient uptake, and affected growth traits. The elevated activity of antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase), in association with relatively high contents of hydrogen peroxide, thiobarbituric acid reactive substances, electrolyte leakage, and endogenous proline, was measured. Exogenous proline application (3 and 6 mM) alleviated cadmium-induced oxidative damage. Exogenous proline increased antioxidant enzyme activities and improved photosynthetic attributes, nutrient uptake (Mg2+, Ca2+, K+), and growth parameters in cadmium-stressed pigeon pea plants. Our results reveal that proline supplementation can comprehensively alleviate the harmful effects of cadmium on pigeon pea plants.
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Claims 10
Claim · model-written summary
Cadmium reduced photosynthetic attributes and chlorophyll contents.
- Taxon
- pigeon pea
Cajanus cajant0 - Treatment
- Cadmium treatmentse0
- Outcome
- photosynthetic attributes, decreased chlorophyll contentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium treatments reduced photosynthetic attributes, decreased chlorophyll contents, disturbed nutrient uptake, and affected growth traits”
t0“Pigeon Pea (Cajanus cajan L.)”
Claim · model-written summary
Cadmium disturbed nutrient uptake.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- Cadmium treatmentse0
- Outcome
- nutrient uptakee0
- Direction
- disturbede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium treatments reduced photosynthetic attributes, decreased chlorophyll contents, disturbed nutrient uptake, and affected growth traits”
t0“Pigeon Pea (Cajanus cajan L.)”
Claim · model-written summary
Cadmium affected growth traits.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- Cadmium treatmentse0
- Outcome
- growth traitse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium treatments reduced photosynthetic attributes, decreased chlorophyll contents, disturbed nutrient uptake, and affected growth traits”
t0“Pigeon Pea (Cajanus cajan L.)”
Claim · model-written summary
Cadmium stress elevated antioxidant enzyme activities.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- activity of antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase)e0
- Direction
- elevatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The elevated activity of antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase)”
t0“Pigeon Pea (Cajanus cajan L.)”
Claim · model-written summary
Cadmium stress was associated with high hydrogen peroxide, TBARS, electrolyte leakage, and endogenous proline.
- Taxon
- pigeon peaCajanus cajant0
- Outcome
- contents of hydrogen peroxide, thiobarbituric acid reactive substances, electrolyte leakage, and endogenous prolinee0
- Direction
- relatively highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relatively high contents of hydrogen peroxide, thiobarbituric acid reactive substances, electrolyte leakage, and endogenous proline”
t0“Pigeon Pea (Cajanus cajan L.)”
Claim · model-written summary
Exogenous proline alleviated cadmium-induced oxidative damage.
- Taxon
- pigeon peaCajanus cajant0
- Treatment
- Exogenous proline application (3 and 6 mM)e0
- Outcome
- cadmium-induced oxidative damagee0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous proline application (3 and 6 mM) alleviated cadmium-induced oxidative damage”
t0“Pigeon Pea (Cajanus cajan L.)”
Claim · model-written summary
Exogenous proline increased antioxidant enzyme activities.
- Taxon
- pigeon peaCajanus cajane0
- Treatment
- Exogenous prolinee0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous proline increased antioxidant enzyme activities and improved photosynthetic attributes, nutrient uptake (Mg2+, Ca2+, K+), and growth parameters in cadmium-stressed pigeon pea plants”
Claim · model-written summary
Exogenous proline improved photosynthetic attributes.
- Taxon
- pigeon peaCajanus cajane0
- Treatment
- Exogenous prolinee0
- Outcome
- photosynthetic attributese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous proline increased antioxidant enzyme activities and improved photosynthetic attributes, nutrient uptake (Mg2+, Ca2+, K+), and growth parameters in cadmium-stressed pigeon pea plants”
Claim · model-written summary
Exogenous proline improved nutrient uptake of Mg2+, Ca2+, and K+.
- Taxon
- pigeon peaCajanus cajane0
- Treatment
- Exogenous prolinee0
- Outcome
- nutrient uptake (Mg2+, Ca2+, K+)e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous proline increased antioxidant enzyme activities and improved photosynthetic attributes, nutrient uptake (Mg2+, Ca2+, K+), and growth parameters in cadmium-stressed pigeon pea plants”
Claim · model-written summary
Exogenous proline improved growth parameters.
- Taxon
- pigeon peaCajanus cajane0
- Treatment
- Exogenous prolinee0
- Outcome
- growth parameterse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous proline increased antioxidant enzyme activities and improved photosynthetic attributes, nutrient uptake (Mg2+, Ca2+, K+), and growth parameters in cadmium-stressed pigeon pea plants”
The same questions in other papers
cadmium atom · growth · Cajanus cajan (pigeon pea)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
2 papers more in this group
See all 6 papers →proline · growth · Cajanus cajan (pigeon pea)Results agree
1 paper in the same direction as this paper
- positive
cadmium atom · physiology: photosynthesis · Cajanus cajan (pigeon pea)Results agree
2 papers in the same direction as this paper
- negative
- negative
cadmium atom · nutrient: content · Cajanus cajan (pigeon pea)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.