Abstract
The mitosis in root tip cells of maize which treated with extract from Rhus typhina leaves at different concentrations(0.5‰,1‰,2‰,5‰,1%,3%,5%,7%and 10%)was studied.The results indicated that extraction from Rhus typhina leaves induced toxic effects to the root tip cells except the low concentration(2‰).The mitotic index decreased with the increasing of concentrations of extract and treatment durations.It also induced micronucleus,multinucleus and chromosomal aberrations.The types of chromosomal aberrations included chromosomal fragment,chromosomal logging,chromosomal bridge,chromosome stickiness and chromosome multipolar division.There was a significantly positive correlation between the frequency of chromosomal aberrations and concentrations of extraction and treatment durations.
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Claims 4
Claim · model-written summary
Rhus leaf extract was toxic to maize root tip cells except at 2‰.
- Treatment
- extraction from Rhus typhina leavese0
- Interactor
- Rhus typhina
Rhus typhinae0other - Outcome
- toxic effects to the root tip cellse0
- Qualifier
- except the low concentration(2‰)e0
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“extraction from Rhus typhina leaves induced toxic effects to the root tip cells except the low concentration(2‰).”
Claim · model-written summary
Mitotic index fell with increasing extract concentration and duration.
- Treatment
- extracte0
- Outcome
- mitotic indexe0
- Direction
- decreasede0
- Qualifier
- increasing of concentrations of extract and treatment durationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“The mitotic index decreased with the increasing of concentrations of extract and treatment durations.”
Claim · model-written summary
The extract induced micronuclei, multinuclei and chromosomal aberrations.
- Treatment
- Extract from Rhus typhina L.Leavest1
- Outcome
- micronucleus,multinucleus and chromosomal aberrationse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“It also induced micronucleus,multinucleus and chromosomal aberrations.”
t1“Extract from Rhus typhina L.Leaves”
Claim · model-written summary
Chromosomal aberration frequency correlated positively with extract concentration and duration.
- Treatment
- extractione0
- Outcome
- frequency of chromosomal aberrationse0
- Direction
- positive correlatione0
- Qualifier
- treatment durationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“There was a significantly positive correlation between the frequency of chromosomal aberrations and concentrations of extraction and treatment durations.”
The same questions in other papers
botanical · cytology · Zea mays (maize)Results agree
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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.