Abstract
The seeds of diploid and tetraploid rice were implanted by nitrogen ion beam.The cytological effects of the root tip cells were studied.The results showed that ion beam implantation could inhibit the survival rate and lots of types of chromosome aberration were observed in the mitosis of root tip cells of M0 generation,such as chromosome bridge,chromosome fragment,univalent and polyvalent.Chromosome aberration rate was not proportional to N+ ion treatment dosages.But as a whole,the more of the dose,the higher of the chromosome aberration rate.The results proved that ion beam could cause abnormity of chromosomes,which might be the cytological reason that leading to the heritable mutations.
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Claims 5
Claim · model-written summary
Nitrogen ion beam implantation inhibited the survival rate of diploid and tetraploid rice.
- Taxon
- rice
Oryza sativat0 - Material
- diploid and tetraploide0
- Treatment
- nitrogen ion beame0
- Outcome
- survival ratee1
- Direction
- inhibite1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cytological Effects of Rice”
e0“The seeds of diploid and tetraploid rice were implanted by nitrogen ion beam”
e1“ion beam implantation could inhibit the survival rate”
Claim · model-written summary
Chromosome aberrations such as bridges, fragments, univalents and polyvalents were observed in root tip cells of M0 rice after ion beam implantation.
- Taxon
- riceOryza sativat0
- Organ / stage
- root tip cellse2
- Treatment
- ion beam implantatione1
- Outcome
- chromosome aberratione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cytological Effects of Rice”
e1“ion beam implantation could inhibit the survival rate”
e2“lots of types of chromosome aberration were observed in the mitosis of root tip cells of M0 generation”
Claim · model-written summary
Chromosome aberration rate was not proportional to the N+ ion treatment dose.
- Taxon
- riceOryza sativat0
- Treatment
- N+ ion treatment dosagese3
- Outcome
- Chromosome aberration ratee3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cytological Effects of Rice”
e3“Chromosome aberration rate was not proportional to N+ ion treatment dosages”
Claim · model-written summary
As a whole, chromosome aberration rate rose with increasing ion beam dose.
- Taxon
- riceOryza sativat0
- Treatment
- dosee4
- Outcome
- chromosome aberration ratee4
- Direction
- highere4
- Qualifier
- as a wholee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cytological Effects of Rice”
e4“But as a whole,the more of the dose,the higher of the chromosome aberration rate”
Claim · model-written summary
Ion beam may cause chromosome abnormity, which might be the cytological reason for heritable mutations.
- Taxon
- riceOryza sativat0
- Treatment
- ion beame5
- Outcome
- heritable mutationse5
- Qualifier
- abnormity of chromosomese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cytological Effects of Rice”
e5“ion beam could cause abnormity of chromosomes,which might be the cytological reason that leading to the heritable mutations”
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