Abstract
Experiments were conducted to study the effects of arsenic on various biochemical parameters, such as chlorophyll, carbohydrate content, free amino acids and molecules concerned with peroxidation (H2O2, MDA), proline, antioxidative enzymes (SOD, CAT, APX) and invertase. Seeds were pre-hardened (HS) by presoaking in KNO3 for 6-8 h, dried at 25 °C. Seeds (NHS and HS) were sown in petri dish lined with filter paper and incubated in BOD incubator. They were periodically treated with the solution of sodium arsenate of two concentrations (0.5 and 1 mM). The seeds germinated in water alone are treated as control. The results showed that there was a considerable decrease in the chlorophyll, carbohydrate content, free amino acids and invertase, while H2O2, MDA, proline and antioxidative enzymes (SOD, CAT and APX) increased under the heavy metal treatment. Proline also enhanced markedly in HS treated with heavy metal. The data are discussed with the available literature.
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Claims 5
Claim · model-written summary
Heavy metal (sodium arsenate) treatment decreased chlorophyll, carbohydrate content and free amino acids in Brassica juncea compared with the control.
- Taxon
- Brassica Juncea
Brassica junceat0 - Material
- Salt-Resistant Varietyt0
- Treatment
- sodium arsenatee0
- Outcome
- chlorophyll, carbohydrate content, free amino acidse1
- Direction
- decreasee1
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salt-Resistant Variety of Brassica Juncea L. Czern and Cross”
e0“They were periodically treated with the solution of sodium arsenate of two concentrations (0.5 and 1 mM)”
e1“there was a considerable decrease in the chlorophyll, carbohydrate content, free amino acids and invertase”
e4“The seeds germinated in water alone are treated as control”
Claim · model-written summary
Heavy metal (sodium arsenate) treatment decreased invertase activity in Brassica juncea compared with the control.
- Taxon
- Brassica JunceaBrassica junceat0
- Material
- Salt-Resistant Varietyt0
- Treatment
- sodium arsenatee0
- Outcome
- invertasee1
- Direction
- decreasee1
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salt-Resistant Variety of Brassica Juncea L. Czern and Cross”
e0“They were periodically treated with the solution of sodium arsenate of two concentrations (0.5 and 1 mM)”
e1“there was a considerable decrease in the chlorophyll, carbohydrate content, free amino acids and invertase”
e4“The seeds germinated in water alone are treated as control”
Claim · model-written summary
Heavy metal treatment increased H2O2, MDA and proline in Brassica juncea compared with the control.
- Taxon
- Brassica JunceaBrassica junceat0
- Treatment
- sodium arsenatee0
- Outcome
- H2O2, MDA, prolinee2
- Direction
- increasede2
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salt-Resistant Variety of Brassica Juncea L. Czern and Cross”
e0“They were periodically treated with the solution of sodium arsenate of two concentrations (0.5 and 1 mM)”
e2“while H2O2, MDA, proline and antioxidative enzymes (SOD, CAT and APX) increased under the heavy metal treatment”
e4“The seeds germinated in water alone are treated as control”
Claim · model-written summary
Heavy metal treatment increased antioxidative enzymes (SOD, CAT and APX) in Brassica juncea compared with the control.
- Taxon
- Brassica JunceaBrassica junceat0
- Treatment
- sodium arsenatee0
- Outcome
- antioxidative enzymes (SOD, CAT and APX)e2
- Direction
- increasede2
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salt-Resistant Variety of Brassica Juncea L. Czern and Cross”
e0“They were periodically treated with the solution of sodium arsenate of two concentrations (0.5 and 1 mM)”
e2“while H2O2, MDA, proline and antioxidative enzymes (SOD, CAT and APX) increased under the heavy metal treatment”
e4“The seeds germinated in water alone are treated as control”
Claim · model-written summary
Heavy metal treatment markedly enhanced proline in pre-hardened (HS) Brassica juncea seeds.
- Taxon
- Brassica JunceaBrassica junceat0
- Material
- HSe3
- Treatment
- heavy metale3
- Outcome
- Prolinee3
- Direction
- enhanced markedlye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salt-Resistant Variety of Brassica Juncea L. Czern and Cross”
e3“Proline also enhanced markedly in HS treated with heavy metal”
The same questions in other papers
heavy metal · physiology: osmolytes · Brassica juncea (Indian mustard)Positive and negative results
1 in the opposite direction
- positive
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.