Abstract
Number four jinyan seeds were chosen to study the poison effect of 0.5,1.5,2.5,4.0 mmol/L Pb(NO3)2 and 0.5,1.0,1.5,2.0 mmol/L CdCl2 on cucumber seeds during the course of germination.The results showed compared to the CK,the inhibition on growth of radicle and germ significantly increased with increasing concentration of Pb and Cd.The growth of the radicle was more significantly inhibited by Pb and Cd stress.After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.The result observed through transmission electron microscope showed ultrastructural changes of root tip cells of seedling were unusually apparent after four days of stress,which were characterized by cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.The poisoning effect caused by Cd was more serious than that caused by Pb under the same experimental conditions.
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Claims 18
Claim · model-written summary
Pb increasingly inhibited radicle and germ growth with rising concentration.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- Pbe0
- Outcome
- inhibition on growth of radicle and germe0
- Direction
- increasede0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“compared to the CK,the inhibition on growth of radicle and germ significantly increased with increasing concentration of Pb and Cd”
Claim · model-written summary
Cd increasingly inhibited radicle and germ growth with rising concentration.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- inhibition on growth of radicle and germe0
- Direction
- increasede0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“compared to the CK,the inhibition on growth of radicle and germ significantly increased with increasing concentration of Pb and Cd”
Claim · model-written summary
Pb more strongly inhibited radicle growth.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Pbe0
- Outcome
- growth of the radiclee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“The growth of the radicle was more significantly inhibited by Pb and Cd stress”
Claim · model-written summary
Cd more strongly inhibited radicle growth.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- growth of the radiclee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“The growth of the radicle was more significantly inhibited by Pb and Cd stress”
Claim · model-written summary
average length decreased as Pb concentration rose after seven days.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Pbe0
- Outcome
- average lengthe0
- Direction
- decreasede0
- Qualifier
- After seven days of stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.”
Claim · model-written summary
fresh weight decreased as Pb concentration rose after seven days.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Pbe0
- Outcome
- fresh weighte0
- Direction
- decreasede0
- Qualifier
- After seven days of stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.”
Claim · model-written summary
chlorophyll content of cotyledons decreased as Pb concentration rose after seven days.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Pbe0
- Outcome
- chlorophyll content of cotyledonse0
- Direction
- decreasede0
- Qualifier
- After seven days of stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.”
Claim · model-written summary
average length decreased as Cd concentration rose after seven days.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- average lengthe0
- Direction
- decreasede0
- Qualifier
- After seven days of stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.”
Claim · model-written summary
fresh weight decreased as Cd concentration rose after seven days.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- fresh weighte0
- Direction
- decreasede0
- Qualifier
- After seven days of stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.”
Claim · model-written summary
chlorophyll content of cotyledons decreased as Cd concentration rose after seven days.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- chlorophyll content of cotyledonse0
- Direction
- decreasede0
- Qualifier
- After seven days of stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“After seven days of stress,the average length,fresh weight of seedling and the chlorophyll content of cotyledons obviously decreased with the increase of the concentration of Pb and Cd.”
Claim · model-written summary
Stress caused apparent ultrastructural changes in seedling root tip cells after four days.
- Taxon
- cucumberCucumis sativust0
- Outcome
- ultrastructural changes of root tip cellse0
- Qualifier
- after four days of stresse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“ultrastructural changes of root tip cells of seedling were unusually apparent after four days of stress”
Claim · model-written summary
Stressed cucumber root cells showed cell gap increasing.
- Taxon
- cucumberCucumis sativust0
- Outcome
- cell gap increasinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.”
Claim · model-written summary
Stressed cucumber root cells showed chromatin spilling.
- Taxon
- cucumberCucumis sativust0
- Outcome
- chromatin spillinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.”
Claim · model-written summary
Stressed cucumber root cells showed reducing and eventually disappearing of the mitochondria and crest.
- Taxon
- cucumberCucumis sativust0
- Outcome
- reducing and eventually disappearing of the mitochondria and creste0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.”
Claim · model-written summary
Stressed cucumber root cells showed membrane structure of each organelle was severely damaged until disintegrated and disappeared.
- Taxon
- cucumberCucumis sativust0
- Outcome
- membrane structure of each organelle was severely damaged until disintegrated and disappearede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.”
Claim · model-written summary
Stressed cucumber root cells showed cell wall was partly fractured.
- Taxon
- cucumberCucumis sativust0
- Outcome
- cell wall was partly fracturede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.”
Claim · model-written summary
Stressed cucumber root cells showed cell structure was collapsed.
- Taxon
- cucumberCucumis sativust0
- Outcome
- cell structure was collapsede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“cell gap increasing,chromatin spilling,reducing and eventually disappearing of the mitochondria and crest.Inside the cells,the membrane structure of each organelle was severely damaged until disintegrated and disappeared.The cell wall was partly fractured and the cell structure was collapsed.”
Claim · model-written summary
Cd caused more severe toxicity than Pb under the same conditions.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Cde0
- Outcome
- poisoning effecte0
- Direction
- more seriouse0
- Comparator
- Pbe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cucumber”
e0“The poisoning effect caused by Cd was more serious than that caused by Pb under the same experimental conditions”
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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.