Abstract
The present study was carried out to examine the metal accumulation and tolerance abilities of three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress (0.25 and 0.5 mM CdCl 2 for three days). Of the Brassica species studied, B. juncea accumulated the highest amount of Cd in a dose-dependent manner, and in every case, the Cd content was higher in the roots than the shoots. Cadmium stress reduced seedlings biomass, leaf relative water content (RWC), and chlorophyll (chl) content, whereas proline (Pro), MDA, and H 2 O 2 content and lipoxygenase (LOX) activity increased in all species. Under Cd stress, ascorbate (AsA) content reduction was lower and glutathione (GSH) content increase was higher in B. juncea compared with other species. Monodehydroascorbate reductase (MDHAR), glutathione reductase (GR), and superoxide dismutase (SOD) activities increased significantly in B. juncea under Cd stress compared with the other species. Catalase (CAT) activity did not decrease in B. juncea due to Cd stress, compared with the other species. Dehydroascorbate reductase (DHAR) activity decreased with both levels of Cd stress in all species except for B. juncea under 0.25 mM CdCl 2 stress. Glyoxalase system components performed better in B. juncea than the other species under Cd stress. Methylglyoxal (MG) increased substantially under both levels of Cd stress, but MG content was lower in B. juncea compared with the others. Considering the antioxidant defense and glyoxalase systems performance B. juncea is relatively tolerant species to Cd toxicity though it accumulated highest Cd.
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Claims 14
Claim · model-written summary
B. juncea accumulated the highest amount of Cd, in a dose-dependent manner.
- Taxon
- B. juncea
Brassica junceae1 - Outcome
- highest amount of Cde1
- Qualifier
- in a dose-dependent mannere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“B. juncea accumulated the highest amount of Cd in a dose-dependent manner”
Claim · model-written summary
Cd content was higher in the roots than in the shoots.
BrassicaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress”
e2“in every case, the Cd content was higher in the roots than the shoots”
Claim · model-written summary
Cadmium stress reduced seedling biomass, leaf relative water content and chlorophyll content.
- Treatment
- Cadmium stresse3
- Outcome
- seedlings biomass, leaf relative water content (RWC), and chlorophyll (chl) contente3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress”
e3“Cadmium stress reduced seedlings biomass, leaf relative water content (RWC), and chlorophyll (chl) content”
Claim · model-written summary
Cadmium stress increased proline, MDA and H 2 O 2 content in all species.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress”
e3“Cadmium stress reduced seedlings biomass, leaf relative water content (RWC), and chlorophyll (chl) content”
e4“whereas proline (Pro), MDA, and H 2 O 2 content and lipoxygenase (LOX) activity increased in all species”
Claim · model-written summary
Cadmium stress increased lipoxygenase activity in all species.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress”
e3“Cadmium stress reduced seedlings biomass, leaf relative water content (RWC), and chlorophyll (chl) content”
e4“whereas proline (Pro), MDA, and H 2 O 2 content and lipoxygenase (LOX) activity increased in all species”
Claim · model-written summary
Under Cd stress, ascorbate content reduction was lower in B. juncea than in other species.
- Taxon
- B. junceaBrassica junceae5
- Treatment
- Cd stresse5
- Outcome
- ascorbate (AsA) content reductione5
- Direction
- lowere5
- Comparator
- other speciese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Under Cd stress, ascorbate (AsA) content reduction was lower and glutathione (GSH) content increase was higher in B. juncea compared with other species”
Claim · model-written summary
Under Cd stress, glutathione content increase was higher in B. juncea than in other species.
- Taxon
- B. junceaBrassica junceae5
- Treatment
- Cd stresse5
- Outcome
- glutathione (GSH) content increasee5
- Direction
- highere5
- Comparator
- other speciese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Under Cd stress, ascorbate (AsA) content reduction was lower and glutathione (GSH) content increase was higher in B. juncea compared with other species”
Claim · model-written summary
Under Cd stress, MDHAR, GR and SOD activities increased significantly in B. juncea compared with the other species.
- Taxon
- B. junceaBrassica junceae6
- Treatment
- Cd stresse6
- Outcome
- Monodehydroascorbate reductase (MDHAR), glutathione reductase (GR), and superoxide dismutase (SOD) activitiese6
- Direction
- increasede6
- Comparator
- the other speciese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Monodehydroascorbate reductase (MDHAR), glutathione reductase (GR), and superoxide dismutase (SOD) activities increased significantly in B. juncea under Cd stress compared with the other species”
Claim · model-written summary
Catalase activity did not decrease in B. juncea under Cd stress compared with the other species.
- Taxon
- B. junceaBrassica junceae7
- Treatment
- Cd stresse7
- Outcome
- Catalase (CAT) activitye7
- Direction
- did not decreasee7
- Comparator
- the other speciese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Catalase (CAT) activity did not decrease in B. juncea due to Cd stress, compared with the other species”
Claim · model-written summary
Dehydroascorbate reductase activity decreased under both Cd levels in all species except B. juncea at 0.25 mM CdCl 2.
- Treatment
- both levels of Cd stresse2
- Outcome
- Dehydroascorbate reductase (DHAR) activitye2
- Direction
- decreasede2
- Qualifier
- except for B. juncea under 0.25 mM CdCl 2 stresse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress”
e2“Dehydroascorbate reductase (DHAR) activity decreased with both levels of Cd stress in all species except for B. juncea under 0.25 mM CdCl 2 stress”
Claim · model-written summary
Glyoxalase system components performed better in B. juncea than in the other species under Cd stress.
- Taxon
- B. junceaBrassica junceae1
- Treatment
- Cd stresse1
- Outcome
- Glyoxalase system componentse1
- Direction
- performed bettere1
- Comparator
- the other speciese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Glyoxalase system components performed better in B. juncea than the other species under Cd stress”
Claim · model-written summary
Methylglyoxal increased substantially under both levels of Cd stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three Brassica species (B. napus, B. campestris, and B. juncea) seedlings exposed to two levels of cadmium (Cd) stress”
e1“Methylglyoxal (MG) increased substantially under both levels of Cd stress”
Claim · model-written summary
Methylglyoxal content was lower in B. juncea than in the other species under Cd stress.
- Taxon
- B. junceaBrassica junceae2
- Treatment
- both levels of Cd stresse1
- Outcome
- MG contente2
- Direction
- lowere2
- Comparator
- the otherse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Methylglyoxal (MG) increased substantially under both levels of Cd stress”
e2“but MG content was lower in B. juncea compared with the others”
Claim · model-written summary
B. juncea is relatively tolerant to Cd toxicity although it accumulated the highest Cd.
- Taxon
- B. junceaBrassica junceae1
- Outcome
- relatively tolerant species to Cd toxicitye1
- Qualifier
- though it accumulated highest Cde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Considering the antioxidant defense and glyoxalase systems performance B. juncea is relatively tolerant species to Cd toxicity though it accumulated highest Cd”
The same questions in other papers
cadmium atom · molecular: metabolites · Brassica juncea (Indian mustard)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →heavy metal · molecular: metabolites · Brassica juncea (Indian mustard)Positive and negative results
2 in the opposite direction
- negative
- negative
heavy metal · molecular: metabolites · BrassicaResults agree
1 paper in the same direction as this paper
- 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.