Abstract
Due to the widespread and frequent use of Roundup Ultra 360 SL in crops production, the active substance glyphosate is often present (in the soil or in post-harvest remnants) and may be toxic to plants, including the non-target species. The aim of the current study was to determine the sensitivity of young soybean seedlings to glyphosate in concentrations ranging from 0 to 10 μM. It was demonstrated that the seedlings take small quantities of soil glyphosate up. More of the active substance was found in the shoots than in the roots. From the doses applied, the plant absorbs up to 4% of soil glyphosate, while over 96% remains in the soil. This suggests that only 4% of glyphosate taken up from the soil affects plant seedling development and water management. It modifies the contents of the biogenic amines cadaverine and putrescine as well as the activity of enzymes involved in their biosynthesis, i.e. ornithine decarboxylase and lysine decarboxylase. The free radical content of the roots increased with increasing herbicide doses and time of exposure. The main enzyme involved in the rapid removal of free radicals was superoxide peroxidase, activated by the herbicide treatment, while catalase was not significantly stimulated.
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Claims 10
Claim · model-written summary
Soybean seedlings took up small quantities of soil glyphosate.
- Taxon
- soybean
Glycine maxt0 - Organ / stage
- seedlingst0
- Outcome
- small quantities of soil glyphosatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“the seedlings take small quantities of soil glyphosate up”
Claim · model-written summary
More glyphosate was present in shoots than roots.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- shootse0
- Outcome
- active substancee0
- Direction
- Moree0
- Comparator
- rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“More of the active substance was found in the shoots than in the roots”
e1“the active substance glyphosate”
Claim · model-written summary
Seedlings absorbed up to 4% of soil glyphosate.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seedlingst0
- Outcome
- soil glyphosatee0
- Value
- 4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“the plant absorbs up to 4% of soil glyphosate”
Claim · model-written summary
Over 96% of glyphosate remained in soil.
- Taxon
- soybeanGlycine maxt0
- Outcome
- 96% remains in the soile0
- Value
- 96%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“over 96% remains in the soil”
e1“the plant absorbs up to 4% of soil glyphosate”
Claim · model-written summary
The authors infer glyphosate uptake affects seedling development and water management.
- Taxon
- soybeanGlycine maxt0
- Treatment
- glyphosate taken up from the soile0
- Outcome
- plant seedling development and water managemente0
- Value
- 4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“This suggests that only 4% of glyphosate taken up from the soil affects plant seedling development and water management”
Claim · model-written summary
Glyphosate modified cadaverine and putrescine contents.
- Taxon
- soybeanGlycine maxt0
- Treatment
- roundup ultra 360 SLt1
- Outcome
- contents of the biogenic amines cadaverine and putrescinee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
t1“roundup ultra 360 SL in soybean seedlings”
e0“It modifies the contents of the biogenic amines cadaverine and putrescine”
Claim · model-written summary
Glyphosate modified ornithine decarboxylase and lysine decarboxylase activity.
- Taxon
- soybeanGlycine maxt0
- Treatment
- roundup ultra 360 SLt0
- Gene
- ornithine decarboxylase and lysine decarboxylasee0
- Outcome
- activity of enzymese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“roundup ultra 360 SL in soybean seedlings”
e0“the activity of enzymes involved in their biosynthesis, i.e. ornithine decarboxylase and lysine decarboxylase”
e1“It modifies the contents of the biogenic amines cadaverine and putrescine as well as the activity of enzymes involved in their biosynthesis”
Claim · model-written summary
Root free radicals rose with herbicide dose and exposure time.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- rootse0
- Treatment
- herbicide dosese0
- Outcome
- free radical content of the rootse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“The free radical content of the roots increased with increasing herbicide doses and time of exposure”
Claim · model-written summary
Herbicide treatment activated superoxide peroxidase.
- Taxon
- soybeanGlycine maxt0
- Treatment
- herbicide treatmente0
- Gene
- superoxide peroxidasee0
- Outcome
- superoxide peroxidasee0
- Direction
- activatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“superoxide peroxidase, activated by the herbicide treatment”
Claim · model-written summary
Herbicide treatment did not significantly stimulate catalase.
- Taxon
- soybeanGlycine maxt0
- Treatment
- herbicide treatmente1
- Gene
- catalasee0
- Outcome
- catalasee0
- Direction
- not significantly stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e0“catalase was not significantly stimulated”
e1“activated by the herbicide treatment”
The same questions in other papers
herbicide · physiology: oxidative · Glycine max (soybean)Positive and negative results
4 in the opposite direction
- negative
- negative
- no effect
1 paper more in this group
See all 5 papers →herbicide · physiology: antioxidant enzymes · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.