Abstract
Effects of glyphosate in Allium cepa var. cepa L. (onion) using Anaphase-Telophase Chromosome Aberration Assay were studied at the Rajamangkala Institute Nakornsrithammarat Campus, Department of General Education, Thung Song district Nakhon Si Thammarat Province. There were 2 experiments, the exploratory testing using glyphosate concentrations at 0.3 and 0.6 ppm and the full scale test using glyphosate concentrations at 0.1 and 0.2 ppm. Onions were treated for 72 hours, after which the mitotic index and chromosome aberrations were examined in the root tips. The resulted showed that glyphosate compound did not affect the chromosome aberration in exploratory test but it did show an effect in the full scale test. Chromosome structure aberrations (chromosome bridge, micronucleus and broken spindle fiber) were induced at 0.1 ppm. The mitotic index was changed and a different control was used for both experiments. This study indicated that glyphosate were more affected in mitotic index than the chromosome aberration. Therefore, conclusion was made from the experiment that glyphosate should be used carefully and the plant should not directly touch.
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Claims 6
Claim · model-written summary
Glyphosate did not affect chromosome aberrations in the exploratory test.
- Taxon
- Allium cepa var. cepa L.
Allium cepat0 - Treatment
- glyphosatee0
- Outcome
- chromosome aberratione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate compound did not affect the chromosome aberration in exploratory test”
t0“Allium cepa var. cepa L.”
Claim · model-written summary
Glyphosate affected chromosome aberrations in the full scale test.
- Taxon
- Allium cepa var. cepa L.Allium cepat0
- Treatment
- glyphosatee1
- Outcome
- chromosome aberratione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it did show an effect in the full scale test”
e1“glyphosate compound did not affect the chromosome aberration in exploratory test”
t0“Allium cepa var. cepa L.”
Claim · model-written summary
At 0.1 ppm glyphosate induced chromosome bridge, micronucleus and broken spindle fiber.
- Taxon
- Allium cepa var. cepa L.Allium cepat0
- Treatment
- glyphosate concentrations at 0.1e1
- Outcome
- chromosome bridge, micronucleus and broken spindle fibere0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chromosome structure aberrations (chromosome bridge, micronucleus and broken spindle fiber) were induced at 0.1 ppm.”
e1“using glyphosate concentrations at 0.1 and 0.2 ppm”
t0“Allium cepa var. cepa L.”
Claim · model-written summary
Glyphosate changed the mitotic index.
- Taxon
- Allium cepa var. cepa L.Allium cepat0
- Treatment
- glyphosatee1
- Outcome
- mitotic indexe0
- Direction
- changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mitotic index was changed”
e1“glyphosate compound did not affect the chromosome aberration in exploratory test”
t0“Allium cepa var. cepa L.”
Claim · model-written summary
Glyphosate affected mitotic index more than chromosome aberration.
- Taxon
- Allium cepa var. cepa L.Allium cepat0
- Outcome
- mitotic indexe0
- Direction
- more affectede0
- Comparator
- chromosome aberratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate were more affected in mitotic index than the chromosome aberration”
t0“Allium cepa var. cepa L.”
Claim · model-written summary
The authors advised careful glyphosate use and avoiding direct plant contact.
- Taxon
- Allium cepa var. cepa L.Allium cepat0
- Outcome
- glyphosate should be used carefully and the plant should not directly touche0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate should be used carefully and the plant should not directly touch”
t0“Allium cepa var. cepa L.”
The same questions in other papers
glyphosate · cytology · Allium cepa (onion)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
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.