Abstract
Soybean plants deprived of nickel accumulated toxic concentrations of urea (2.5 percent) in necrotic lesions on their leaflet tips. This occurred regardless of whether the plants were supplied with inorganic nitrogen or were dependent on nitrogen fixation. Nickel deprivation resulted in delayed nodulation and in a reduction of early growth. Addition of nickel (1 microgram per liter) to the nutrient media prevented urea accumulation, necrosis, and growth reductions. This evidence suggests that nickel is essential for soybeans and possibly for higher plants in general.
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Claims 5
Claim · model-written summary
Nickel-deprived soybean accumulated toxic urea in necrotic leaflet-tip lesions.
- Taxon
- Soybean
Glycine maxe0 - Organ / stage
- leaflet tipse0
- Treatment
- deprived of nickele0
- Outcome
- toxic concentrations of ureae0
- Value
- 2.5 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean plants deprived of nickel accumulated toxic concentrations of urea (2.5 percent) in necrotic lesions on their leaflet tips.”
Claim · model-written summary
Nickel deprivation delayed soybean nodulation.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Nickel deprivatione0
- Outcome
- nodulatione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nickel deprivation resulted in delayed nodulation and in a reduction of early growth.”
t0“Soybean plants deprived of nickel accumulated toxic concentrations of urea”
Claim · model-written summary
Nickel deprivation reduced early soybean growth.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Nickel deprivatione0
- Outcome
- early growthe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nickel deprivation resulted in delayed nodulation and in a reduction of early growth.”
t0“Soybean plants deprived of nickel accumulated toxic concentrations of urea”
Claim · model-written summary
Adding nickel to the nutrient medium prevented soybean urea accumulation, necrosis and growth reductions.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- nickel (1 microgram per liter)e0
- Outcome
- urea accumulation, necrosis, and growth reductionse0
- Direction
- preventede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of nickel (1 microgram per liter) to the nutrient media prevented urea accumulation, necrosis, and growth reductions.”
t0“Soybean plants deprived of nickel accumulated toxic concentrations of urea”
Claim · model-written summary
The authors infer that nickel is essential for soybean and possibly other higher plants.
- Taxon
- soybeansGlycine maxe0
- Outcome
- nickel is essentiale0
- Qualifier
- possibly for higher plants in generale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This evidence suggests that nickel is essential for soybeans and possibly for higher plants in general.”
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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.