Abstract
Cadmium is considered a highly toxic metallic element that does not have any beneficial biological functions for humans or plants. It has been reported that the antagonism of selenium to heavy metal stress has been observed in a variety of plants, and appropriate selenium could alleviate heavy-metal-induced oxidative damage and reduce the accumulation of heavy metals in plants. Changes in physiological characteristics, root tip cells, cadmium concentration, and accumulation of rape under cadmium stress were investigated in this study through pot experiment. Results showed that selenium could alleviate the inhibitory effect of cadmium on the growth of rape seedlings. The concentration and accumulation of cadmium were decreased after the selenium application in rape seeds, ranging from 19.93 to 22.97% and 27.96 to 43.88%, respectively, and the decrease in photosynthetic pigment content induced by cadmium was significantly improved. The results of transmission electron microscopy showed that exogenous selenium and cadmium had metal complexation reaction and formed black precipitation, which may be related to the detoxification effect of selenium on cadmium. More critically, with the addition of selenium, the plasma membrane damage and free radical accumulation in root tips induced by cadmium stress were gradually alleviated in the histochemical staining experiment of rape root tips. These results may provide evidence for exploring effective measures to reduce cadmium accumulation in rape under cadmium-contaminated areas.
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Claims 7
Claim · model-written summary
Selenium alleviated cadmium inhibition of rape seedling growth.
- Taxon
- rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Treatment
- seleniume0
- Outcome
- growth of rape seedlingse0
- Direction
- alleviatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“selenium could alleviate the inhibitory effect of cadmium on the growth of rape seedlings”
Claim · model-written summary
Selenium decreased cadmium concentration in rape seeds by 19.93 to 22.97%.
- Taxon
- rapeBrassica napuse0
- Organ / stage
- seedse0
- Treatment
- selenium applicatione0
- Outcome
- concentratione0
- Direction
- decreasede0
- Value
- 19.93 to 22.97%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration and accumulation of cadmium were decreased after the selenium application in rape seeds, ranging from 19.93 to 22.97% and 27.96 to 43.88%, respectively”
Claim · model-written summary
Selenium decreased cadmium accumulation in rape seeds by 27.96 to 43.88%.
- Taxon
- rapeBrassica napuse0
- Organ / stage
- seedse0
- Treatment
- selenium applicatione0
- Outcome
- accumulation of cadmiume0
- Direction
- decreasede0
- Value
- 27.96 to 43.88%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration and accumulation of cadmium were decreased after the selenium application in rape seeds, ranging from 19.93 to 22.97% and 27.96 to 43.88%, respectively”
Claim · model-written summary
Selenium significantly improved the cadmium-induced decline in photosynthetic pigments.
- Taxon
- rapeBrassica napuse1
- Treatment
- selenium applicatione1
- Outcome
- photosynthetic pigment contente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decrease in photosynthetic pigment content induced by cadmium was significantly improved”
e1“selenium application in rape seeds”
Claim · model-written summary
Exogenous selenium and cadmium formed black precipitate through metal complexation.
- Taxon
- rapeBrassica napuse1
- Outcome
- metal complexation reaction and formed black precipitatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous selenium and cadmium had metal complexation reaction and formed black precipitation”
e1“rape root tips”
Claim · model-written summary
Selenium alleviated cadmium-induced plasma membrane damage in rape root tips.
- Taxon
- rapeBrassica napuse1
- Organ / stage
- root tipse0
- Treatment
- addition of seleniume0
- Outcome
- plasma membrane damagee0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the addition of selenium, the plasma membrane damage and free radical accumulation in root tips induced by cadmium stress were gradually alleviated”
e1“rape root tips”
Claim · model-written summary
Selenium alleviated cadmium-induced free radical accumulation in rape root tips.
- Taxon
- rapeBrassica napuse1
- Organ / stage
- root tipse0
- Treatment
- addition of seleniume0
- Outcome
- free radical accumulatione0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the addition of selenium, the plasma membrane damage and free radical accumulation in root tips induced by cadmium stress were gradually alleviated”
e1“rape root tips”
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See all 6 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.