Abstract
[Objective]The propose was to provided the reference for taking Brassica napus as the remediation plant in soil polluted by heavy metals.[Method]B.napus seedlings stressed in Pb solution at 500 mg/L were treated with sodium selenite solution at 0(CK),5,10,15,20,25 and 30 mg/L to study the effects of Se on enzyme activity and chlorophyll content of B.napus under Pb stress. [Result] When Se was below 15 mg/L,the root-shoot ratio of B.napus was increased.When Se was over15 mg/L,the root-shoot ratio was decreased along with the increment of Se concn.Se in some concn.range(below 10 mg/L) could increase relative activity of SOD,POD and CAT and the change of SOD activity was most obvious.Se at over 10 mg/L could reduce the enzyme activity.Se at below 10 mg/L could increase the chlorophyll content and Se at over 15 mg/L could aggravate the decrease of chlorophyll content.[Conclusion] When Se was below 10 mg/L,Se and Pb showed the antagonism;when Se was over10 mg/L,Se and Pb showed the cooperation action.
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Claims 8
Claim · model-written summary
Se was below 15 mg/L changed root-shoot ratio.
- Taxon
- Brassica napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- Se was below 15 mg/Le0
- Outcome
- root-shoot ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“When Se was below 15 mg/L,the root-shoot ratio of B.napus was increased.”
t0“Brassica napus”
Claim · model-written summary
Se was over15 mg/L changed root-shoot ratio.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se was over15 mg/Le0
- Outcome
- root-shoot ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Se was over15 mg/L,the root-shoot ratio was decreased along with the increment of Se concn.”
t0“Brassica napus”
Claim · model-written summary
Se in some concn.range(below 10 mg/L) changed relative activity of SOD,POD and CAT.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se in some concn.range(below 10 mg/L)e0
- Outcome
- relative activity of SOD,POD and CATe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se in some concn.range(below 10 mg/L) could increase relative activity of SOD,POD and CAT and the change of SOD activity was most obvious.”
t0“Brassica napus”
Claim · model-written summary
Se at over 10 mg/L changed enzyme activity.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se at over 10 mg/Le0
- Outcome
- enzyme activitye0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se at over 10 mg/L could reduce the enzyme activity.”
t0“Brassica napus”
Claim · model-written summary
Se at below 10 mg/L changed chlorophyll content.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se at below 10 mg/Le0
- Outcome
- chlorophyll contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se at below 10 mg/L could increase the chlorophyll content and Se at over 15 mg/L could aggravate the decrease of chlorophyll content.”
t0“Brassica napus”
Claim · model-written summary
Se at over 15 mg/L changed chlorophyll content.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se at over 15 mg/Le0
- Outcome
- chlorophyll contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Se at below 10 mg/L could increase the chlorophyll content and Se at over 15 mg/L could aggravate the decrease of chlorophyll content.”
t0“Brassica napus”
Claim · model-written summary
Se and Pb showed antagonism under Se was below 10 mg/L.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se was below 10 mg/Le0
- Outcome
- antagonisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“[Conclusion] When Se was below 10 mg/L,Se and Pb showed the antagonism;when Se was over10 mg/L,Se and Pb showed the cooperation action.”
t0“Brassica napus”
Claim · model-written summary
Se and Pb showed cooperation action under Se was over10 mg/L.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Se was over10 mg/Le0
- Outcome
- cooperation actione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“[Conclusion] When Se was below 10 mg/L,Se and Pb showed the antagonism;when Se was over10 mg/L,Se and Pb showed the cooperation action.”
t0“Brassica napus”
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