Abstract
Abstract Effects of graded concentrations of nickel on maize (Zea mays L.) growth and certain metabolic parameters were studied. Under nickel (Ni) stress conditions, leaves become chlorotic at low concentrations and necrotic at, relatively, high ones. Concerning its effect on plant growth, nickel reduces dry matter production, more significantly in root system which accumulates large amounts of Ni. In leaves, chlorophyll content was severely decreased. Furthermore, this metal induces leaf accumulation of soluble phenolics, starch and reducing sugars. The accumulation of carbohydrates in shoots might be, at least in part, the cause of root growth inhibition.
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Claims 7
Claim · model-written summary
Low nickel concentrations caused leaf chlorosis.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaves become chlorotic at low concentrations”
t0“maize”
Claim · model-written summary
Relatively high nickel concentrations caused leaf necrosis.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“necrotic at, relatively, high ones”
t0“maize”
Claim · model-written summary
Nickel reduced dry matter production, especially in roots.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nickel reduces dry matter production, more significantly in root system which accumulates large amounts of Ni”
t0“maize”
Claim · model-written summary
Roots accumulated large amounts of Ni.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root system which accumulates large amounts of Ni”
t0“maize”
Claim · model-written summary
Nickel severely decreased leaf chlorophyll content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In leaves, chlorophyll content was severely decreased”
t0“maize”
e1“Concerning its effect on plant growth, nickel reduces dry matter production”
Claim · model-written summary
Nickel caused leaf accumulation of soluble phenolics, starch and reducing sugars.
- Treatment
- this metale0
- Outcome
- leaf accumulation of soluble phenolics, starch and reducing sugarse0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this metal induces leaf accumulation of soluble phenolics, starch and reducing sugars”
t0“maize”
Claim · model-written summary
Shoot carbohydrate accumulation may contribute to root growth inhibition.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of carbohydrates in shoots might be, at least in part, the cause of root growth inhibition”
t0“maize”
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See all 9 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.