Abstract
Abstract An experiment was conducted to study the effect of nickel (Ni) on the nutrition of tomato plants (Lycopersicon esculentum M. cv. Marmande). Dry matter weights of roots, shoots, and fruit were also studied. Plants, receiving 5, 15, and 30 mg Ni L‐1, were grown in nutrient solution, and roots, stems plus branches, leaves, and fruit were analyzed at different developmental stages for essential nutrients. The presence of Ni in nutrient medium affected plant growth, decreasing dramatically dry matter yield compared to control plants. This plant reduction was likely due to the disturbances and imbalances of the different essential mineral elements. The general effect was a decrease in the absorption and accumulation of these nutrients. The nitrogen (N) content in the plant increased significantly with increasing Ni treatments, showing a synergetic effect between Ni and N. A positive interaction between Ni and potassium (K) was also found. In this way, high levels of Ni in solution caused an increase in K uptake and, however, a decrease in sodium (Na) absorption (antagonism Na/K). Since Ni is taken up as Ni2+, its absorption in high concentrations decreased significantly the uptake of other divalent cations, such as Mg2+, Fe2+, Mn2+, Cu2+, and Zn2+, with manganese (Mn) being the nutrient showing the highest restriction in the whole plant (roots and shoots).
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Claims 8
Claim · model-written summary
Nickel in nutrient medium dramatically decreased tomato dry matter yield relative to control plants.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Ni in nutrient mediume0
- Outcome
- dry matter yielde0
- Direction
- decreasinge0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The presence of Ni in nutrient medium affected plant growth, decreasing dramatically dry matter yield compared to control plants”
Claim · model-written summary
Nickel generally decreased tomato absorption and accumulation of essential nutrients.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ni in nutrient mediume1
- Outcome
- absorption and accumulation of these nutrientse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The general effect was a decrease in the absorption and accumulation of these nutrients”
e1“The presence of Ni in nutrient medium”
Claim · model-written summary
Tomato nitrogen content increased significantly with increasing nickel treatments.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ni treatmentse0
- Outcome
- nitrogen (N) contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The nitrogen (N) content in the plant increased significantly with increasing Ni treatments”
Claim · model-written summary
Higher nickel exposure increased potassium uptake in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- high levels of Ni in solutione0
- Outcome
- K uptakee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“high levels of Ni in solution caused an increase in K uptake”
Claim · model-written summary
Higher nickel exposure decreased sodium absorption in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- high levels of Ni in solutione0
- Outcome
- sodium (Na) absorptione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“high levels of Ni in solution caused an increase in K uptake and, however, a decrease in sodium (Na) absorption”
Claim · model-written summary
High nickel uptake significantly decreased tomato uptake of Mg2+, Fe2+, and Mn2+.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- high concentrationse0
- Outcome
- uptake of other divalent cations, such as Mg2+, Fe2+, Mn2+e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“its absorption in high concentrations decreased significantly the uptake of other divalent cations, such as Mg2+, Fe2+, Mn2+, Cu2+, and Zn2+”
Claim · model-written summary
High nickel uptake significantly decreased tomato uptake of Cu2+ and Zn2+.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- high concentrationse0
- Outcome
- Cu2+, and Zn2+e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“its absorption in high concentrations decreased significantly the uptake of other divalent cations, such as Mg2+, Fe2+, Mn2+, Cu2+, and Zn2+”
Claim · model-written summary
Manganese showed the greatest uptake restriction in tomato roots and shoots under high nickel exposure.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- roots and shootse0
- Outcome
- manganese (Mn) being the nutrient showing the highest restrictione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“with manganese (Mn) being the nutrient showing the highest restriction in the whole plant (roots and shoots)”
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