Abstract
The effects of cadmium on physiological and ultrastructural characteristics were evaluated in 6-d-old seedlings of two Brassica napus L. cultivars Zheda 619 and ZS 758. Results show that Cd at lower concentration (100 μM) stimulated the seedling growth but at higher concentration (500 μM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species. Cd content in different parts of seedlings was higher in ZS 758 than in Zheda 619. Electron micrographs illustrated that 500 μM Cd severely damaged the leaf and root tip cells of both cultivars. Under Cd stress, the size and number of starch grains, plastoglobuli, and lipid bodies in the chloroplasts increased. In the root tip cells, enlarged vacuoles, diffused cell walls, and undeveloped mitochondria were detected.
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Claims 9
Claim · model-written summary
100 μM Cd stimulated seedling growth in both cultivars.
- Taxon
- Brassica napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Material
- both cultivarse0
- Treatment
- Cd at lower concentration (100 μM)e0
- Outcome
- seedling growthe0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Results show that Cd at lower concentration (100 μM) stimulated the seedling growth but at higher concentration (500 μM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species.”
t0“Brassica napus”
Claim · model-written summary
500 μM Cd inhibited seedling growth in both cultivars.
- Taxon
- Brassica napusBrassica napust0
- Material
- both cultivarse0
- Treatment
- higher concentration (500 μM)e0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results show that Cd at lower concentration (100 μM) stimulated the seedling growth but at higher concentration (500 μM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species.”
t0“Brassica napus”
Claim · model-written summary
500 μM Cd decreased photosynthetic pigment content.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- higher concentration (500 μM)e0
- Outcome
- content of photosynthetic pigmentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results show that Cd at lower concentration (100 μM) stimulated the seedling growth but at higher concentration (500 μM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species.”
t0“Brassica napus”
Claim · model-written summary
500 μM Cd decreased antioxidant enzyme activity.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- higher concentration (500 μM)e0
- Outcome
- activities of antioxidant enzymese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results show that Cd at lower concentration (100 μM) stimulated the seedling growth but at higher concentration (500 μM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species.”
t0“Brassica napus”
Claim · model-written summary
500 μM Cd increased malondialdehyde and reactive oxygen species content.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- higher concentration (500 μM)e0
- Outcome
- content of malondialdehyde and reactive oxygen speciese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results show that Cd at lower concentration (100 μM) stimulated the seedling growth but at higher concentration (500 μM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species.”
t0“Brassica napus”
Claim · model-written summary
Seedling cadmium content was higher in ZS 758 than Zheda 619.
- Taxon
- Brassica napusBrassica napust0
- Material
- ZS 758e0
- Outcome
- Cd content in different parts of seedlingse0
- Direction
- highere0
- Comparator
- Zheda 619e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd content in different parts of seedlings was higher in ZS 758 than in Zheda 619.”
t0“Brassica napus”
Claim · model-written summary
500 μM Cd severely damaged leaf and root tip cells of both cultivars.
- Taxon
- Brassica napusBrassica napust0
- Material
- both cultivarse0
- Treatment
- 500 μM Cde0
- Outcome
- leaf and root tip cellse0
- Direction
- severely damagede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Electron micrographs illustrated that 500 μM Cd severely damaged the leaf and root tip cells of both cultivars.”
t0“Brassica napus”
Claim · model-written summary
Cadmium stress increased starch grain, plastoglobule and lipid body size and number in chloroplasts.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Cd stresse0
- Outcome
- size and number of starch grains, plastoglobuli, and lipid bodies in the chloroplastse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Cd stress, the size and number of starch grains, plastoglobuli, and lipid bodies in the chloroplasts increased.”
t0“Brassica napus”
Claim · model-written summary
Cadmium stressed root tips showed enlarged vacuoles, diffused cell walls and undeveloped mitochondria.
- Taxon
- Brassica napusBrassica napust0
- Organ / stage
- root tip cellse0
- Outcome
- enlarged vacuoles, diffused cell walls, and undeveloped mitochondriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the root tip cells, enlarged vacuoles, diffused cell walls, and undeveloped mitochondria were detected.”
t0“Brassica napus”
The same questions in other papers
cadmium atom · growth · Brassica napus (oilseed rape)Results differ
2 papers in the same direction as this paper · 19 in the opposite direction
- negative
- positive
- negative
18 papers more in this group
See all 22 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.