Abstract
In order to investigate the mechanism of plant detoxification against heavy metal,this study was made on the effects of CdCl2,Cd(NO3)2 and CdCl2+NH4HCO3 stresses on growth and photosynthetic characteristic of poplar plants by selecting the cutting poplar plants 107 as the experimental materials and using CdCl2 and Cd(NO3)2 to stress the poplar plants.The results showed that application of Cd(NO3)2 or CdCl2 by adding NH4HCO3 to the poplar culture soil could relieve the toxicity of cadmium to plants,and the growth of poplar plants,the content of chlorophyll a(Chl a) and chlorophyll b(Chl b),as well as photosynthesis,were significantly higher than those of the control.However,the addition of CdCl2 to the soil inhibited the growth of poplar plants and led to a decrease in photosynthetic pigment content and photosynthesis.It can be concluded that nitrogen plays an important physiological role in detoxifying plants from heavy metals,that addition of nitrogen can alleviate the toxicity of cadmium to plants,increase the content of chlorophyll and photosynthesis,and stimulate the growth of poplar plants.
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Claims 6
Claim · model-written summary
Adding NH4HCO3 with Cd salts increased poplar growth relative to the control.
- Treatment
- application of Cd(NO3)2 or CdCl2 by adding NH4HCO3e0
- Outcome
- growth of poplar plantse1
- Direction
- highere1
- Comparator
- the controle1
PopulusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Cd(NO3)2 or CdCl2 by adding NH4HCO3 to the poplar culture soil could relieve the toxicity of cadmium to plants”
e1“the growth of poplar plants, the content of chlorophyll a(Chl a) and chlorophyll b(Chl b),as well as photosynthesis, were significantly higher than those of the control”
Claim · model-written summary
Adding NH4HCO3 with Cd salts increased chlorophyll a and b content relative to the control.
- Treatment
- application of Cd(NO3)2 or CdCl2 by adding NH4HCO3e0
- Outcome
- chlorophyll a(Chl a) and chlorophyll b(Chl b)e1
- Direction
- highere1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Cd(NO3)2 or CdCl2 by adding NH4HCO3 to the poplar culture soil could relieve the toxicity of cadmium to plants”
e1“the growth of poplar plants, the content of chlorophyll a(Chl a) and chlorophyll b(Chl b),as well as photosynthesis, were significantly higher than those of the control”
Claim · model-written summary
Adding NH4HCO3 with Cd salts increased photosynthesis relative to the control.
- Treatment
- application of Cd(NO3)2 or CdCl2 by adding NH4HCO3e0
- Outcome
- photosynthesise1
- Direction
- highere1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Cd(NO3)2 or CdCl2 by adding NH4HCO3 to the poplar culture soil could relieve the toxicity of cadmium to plants”
e1“the growth of poplar plants, the content of chlorophyll a(Chl a) and chlorophyll b(Chl b),as well as photosynthesis, were significantly higher than those of the control”
Claim · model-written summary
CdCl2 added to the soil inhibited poplar growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the addition of CdCl2 to the soil inhibited the growth of poplar plants and led to a decrease in photosynthetic pigment content and photosynthesis”
Claim · model-written summary
CdCl2 added to the soil decreased photosynthetic pigment content and photosynthesis.
- Treatment
- the addition of CdCl2 to the soile2
- Outcome
- photosynthetic pigment content and photosynthesise2
- Direction
- decreasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the addition of CdCl2 to the soil inhibited the growth of poplar plants and led to a decrease in photosynthetic pigment content and photosynthesis”
Claim · model-written summary
Nitrogen plays an important physiological role in detoxifying poplar plants from heavy metals.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the growth of poplar plants, the content of chlorophyll a(Chl a) and chlorophyll b(Chl b),as well as photosynthesis, were significantly higher than those of the control”
e3“nitrogen plays an important physiological role in detoxifying plants from heavy metals”
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See all 5 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.