Abstract
Zinc(Zn)has been demonstrated to inhibit plant growth at excessive amount. The present study was focused on the accumulation in germ and radicle and the depletion in endosperm of maize(Zea mays L.)Zhengdan 958 of nitrogen, phosphorus and potassium under 0~1600 mg·L-1Zn SO4·7H2O during germination and early seedling growth. Material transformation in all parts of the maize seedlings was strongly inhibited by concentrations of Zn SO4·7H2O above 800 mg·L-1. Potassium in the seeds showed the highest transfer rate, followed by phosphorus. Zinc accumulation in germ, radicle and endosperm increased linearly with Zn concentrations, and was in order of endospermradicalgerm. Radicle was more sensitive to zinc pollution than germ. In the endosperm, nitrogen residues were positively related to zinc accumulation(P0.05). Toxic effect of Zn on maize germination was probably due to reduced nitrogen mobilization caused by high zinc accumulation in the endosperm.
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Claims 7
Claim · model-written summary
Zinc sulfate above 800 mg·L-1 inhibited material transformation in all maize seedling parts.
- Treatment
- concentrations of Zn SO4·7H2O above 800 mg·L-1e0
- Outcome
- Material transformation in all parts of the maize seedlingse0
- Direction
- inhibitede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Material transformation in all parts of the maize seedlings was strongly inhibited by concentrations of Zn SO4·7H2O above 800 mg·L-1”
t0“Maize(Zea mays L.)”
Claim · model-written summary
Potassium transferred fastest from maize seeds, followed by phosphorus.
- Outcome
- Potassium in the seeds showed the highest transfer ratee0
- Direction
- higheste0
- Comparator
- phosphoruse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium in the seeds showed the highest transfer rate, followed by phosphorus”
t0“Maize(Zea mays L.)”
Claim · model-written summary
Zinc accumulation in maize germ, radicle and endosperm increased linearly with zinc concentration.
- Treatment
- Zn concentrationse0
- Outcome
- Zinc accumulation in germ, radicle and endosperme0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc accumulation in germ, radicle and endosperm increased linearly with Zn concentrations”
t0“Maize(Zea mays L.)”
Claim · model-written summary
Zinc accumulation ranked endosperm, radicle, then germ.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was in order of endospermradicalgerm”
e1“Zinc accumulation in germ, radicle and endosperm increased linearly with Zn concentrations”
t0“Maize(Zea mays L.)”
Claim · model-written summary
Maize radicles were more sensitive to zinc pollution than germs.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Radicle was more sensitive to zinc pollution than germ”
t0“Maize(Zea mays L.)”
Claim · model-written summary
Endosperm nitrogen residues were positively related to zinc accumulation.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the endosperm, nitrogen residues were positively related to zinc accumulation(P0.05)”
t0“Maize(Zea mays L.)”
Claim · model-written summary
The authors propose that high endosperm zinc reduces nitrogen mobilization and causes toxic effects on germination.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Toxic effect of Zn on maize germination was probably due to reduced nitrogen mobilization caused by high zinc accumulation in the endosperm”
The same questions in other papers
zinc atom · organism · Zea mays (maize)Positive and negative results
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See all 17 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.