Abstract
Soybean, the worldwide main source of oil and high protein feeds for the livestock sector has a high cadmium (Cd) accumulation capacity. With this background, the hydroponic culture experiments were conducted to investigate the effects of different concentrations of Cd (0-100 µM) on growth, water relations, photosynthetic variables, oxidative stress, and antioxidant response in two soybean genotypes P-218 and P-898. Ten days old seedlings were subjected to (0-100 µM CdCl2) for 15 days. The results indicated that the growth of genotype P-218 was not affected significantly upto 75 µM CdCl2 treatment growth of P-828 was reduced significantly beyond 25 µM CdCl2 treatments. Cd toxicity caused severe impairments in photosynthetic variables like photosynthetic rate, chlorophyll fluorescence and chlorophyll content, in P-898 than in P-218. The activities of antioxidant enzymes (superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase) were higher in P-218 than in P-828 at various levels of Cd treatments. Chlorophyll fluorescence measurements revealed that non-photochemical quenching increased in P-218 and decreased in P-828 whereas the electron transport rate increased under Cd stress in P-828 and decreased in P-218. It is concluded that tolerance capacity of P-218 against Cd can be associated with the capability of this genotype in keeping an active photosynthetic system and strong antioxidant defense system.
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Claims 9
Claim · model-written summary
P-218 growth was not significantly affected up to 75 µM CdCl2.
- Taxon
- Soybean
Glycine maxt0 - Material
- P-218e0
- Treatment
- 75 µM CdCl2e0
- Outcome
- growthe0
- Direction
- not affectede0
- Value
- 75 µMe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth of genotype P-218 was not affected significantly upto 75 µM CdCl2 treatment”
t0“soybean”
Claim · model-written summary
P-828 growth declined significantly beyond 25 µM CdCl2.
- Taxon
- soybeanGlycine maxt0
- Material
- P-828e0
- Treatment
- 25 µM CdCl2e0
- Outcome
- growthe0
- Direction
- reducede0
- Qualifier
- beyond 25 µM CdCl2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth of P-828 was reduced significantly beyond 25 µM CdCl2 treatments”
t0“soybean”
Claim · model-written summary
Cadmium impaired photosynthetic rate, chlorophyll fluorescence and chlorophyll content more in P-898 than P-218.
- Taxon
- soybeanGlycine maxt0
- Material
- P-898e0
- Treatment
- Cd toxicitye0
- Outcome
- photosynthetic rate, chlorophyll fluorescence and chlorophyll contente0
- Direction
- severe impairmentse0
- Comparator
- P-218e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd toxicity caused severe impairments in photosynthetic variables like photosynthetic rate, chlorophyll fluorescence and chlorophyll content, in P-898 than in P-218”
t0“soybean”
Claim · model-written summary
Antioxidant enzyme activities were higher in P-218 than P-828 under cadmium treatments.
- Taxon
- soybeanGlycine maxt0
- Material
- P-218e0
- Treatment
- Cd treatmentse0
- Outcome
- activities of antioxidant enzymese0
- Direction
- highere0
- Comparator
- P-828e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of antioxidant enzymes (superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase) were higher in P-218 than in P-828 at various levels of Cd treatments”
t0“soybean”
Claim · model-written summary
Non-photochemical quenching increased in P-218 under cadmium stress.
- Taxon
- soybeanGlycine maxt0
- Material
- P-218e0
- Treatment
- Cd stresse1
- Outcome
- non-photochemical quenchinge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“non-photochemical quenching increased in P-218 and decreased in P-828”
t0“soybean”
e1“the electron transport rate increased under Cd stress in P-828 and decreased in P-218”
Claim · model-written summary
Non-photochemical quenching decreased in P-828 under cadmium stress.
- Taxon
- soybeanGlycine maxt0
- Material
- P-828e0
- Treatment
- Cd stresse1
- Outcome
- non-photochemical quenchinge0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“non-photochemical quenching increased in P-218 and decreased in P-828”
t0“soybean”
e1“the electron transport rate increased under Cd stress in P-828 and decreased in P-218”
Claim · model-written summary
Electron transport rate increased in P-828 under cadmium stress.
- Taxon
- soybeanGlycine maxt0
- Material
- P-828e0
- Treatment
- Cd stresse0
- Outcome
- electron transport ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the electron transport rate increased under Cd stress in P-828 and decreased in P-218”
t0“soybean”
Claim · model-written summary
Electron transport rate decreased in P-218 under cadmium stress.
- Taxon
- soybeanGlycine maxt0
- Material
- P-218e0
- Treatment
- Cd stresse0
- Outcome
- electron transport ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the electron transport rate increased under Cd stress in P-828 and decreased in P-218”
t0“soybean”
Claim · model-written summary
The authors associate P-218 cadmium tolerance with active photosynthesis and antioxidant defense.
- Taxon
- soybeanGlycine maxt0
- Material
- P-218e0
- Outcome
- tolerance capacitye0
- Qualifier
- active photosynthetic system and strong antioxidant defense systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tolerance capacity of P-218 against Cd can be associated with the capability of this genotype in keeping an active photosynthetic system and strong antioxidant defense system”
t0“soybean”
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See all 7 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.