Abstract
A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat with the varied supply of phosphorus (0, 0.12, 0.6 and 3.0 mmol L-1 ) and zinc (0.1 and 2.0 μmol L-1 ) under controlled environmental conditions. The results showed the highest dry matter production of both corn and wheat under the moderate combination of phosphorus (0.6 mmol L-1 ) and zinc (2.0 μmol L-1 ) as compared with other imbalance applications of phosphorus and zinc. Excessive P supply significantly inhibited the translocation of Zn from roots of corn to the aboveground part, thus decreasing the content of Zn in the shoots. Application of 3.0 mmol L-1 P could also reduce the water-soluble Zn in plant tissues, leading to an increase in the cell plasma membrane permeability, a decrease in the dehydrogenase activity in roots and the activity of nitrate reductase in leaves, and a decline in the uptake of nitrate by plants. A similar decrease occurred in superoxide dismutase (SOD) and plasma membrane adenosine triphosphatase (ATPase) activity in Zn-deficient plants.But, with increasing P supply, the activity of ATPase in both corn and wheat increased and reached the maximum at the p-supplying level of 3.0 mmol L-1. Similar to the effect of high P supply, no or low P (0.12 mmol L-1 ) supply could be detrimental to dry matter production and physiological functioning of the plants. Corn plants showed a more significant response to the imbalance supply of P and Zn than wheat plants. The possible physiological and biochemical mechanism of phosphorus-zinc antagonistic interaction in corn and wheat might be attributed to decrease in physiological availability and activation of Zn.
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Claims 14
Claim · model-written summary
Dry matter production of corn was highest under the moderate P and Zn combination compared with other imbalanced P and Zn applications.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- moderate combination of phosphorus (0.6 mmol L-1 ) and zinc (2.0 μmol L-1 )e1
- Outcome
- dry matter productione1
- Direction
- higheste1
- Comparator
- other imbalance applications of phosphorus and zince1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed the highest dry matter production of both corn and wheat under the moderate combination of phosphorus (0.6 mmol L-1 ) and zinc (2.0 μmol L-1 ) as compared with other imbalance applications of phosphorus and zinc”
Claim · model-written summary
Dry matter production of wheat was highest under the moderate P and Zn combination compared with other imbalanced P and Zn applications.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- moderate combination of phosphorus (0.6 mmol L-1 ) and zinc (2.0 μmol L-1 )e1
- Outcome
- dry matter productione1
- Direction
- higheste1
- Comparator
- other imbalance applications of phosphorus and zince1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed the highest dry matter production of both corn and wheat under the moderate combination of phosphorus (0.6 mmol L-1 ) and zinc (2.0 μmol L-1 ) as compared with other imbalance applications of phosphorus and zinc”
Claim · model-written summary
Excessive P supply significantly inhibited translocation of Zn from the roots of corn to the aboveground part.
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- Excessive P supplye2
- Outcome
- translocation of Zn from rootse2
- Direction
- inhibitede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Excessive P supply significantly inhibited the translocation of Zn from roots of corn to the aboveground part, thus decreasing the content of Zn in the shoots”
Claim · model-written summary
Excessive P supply decreased the Zn content in the shoots of corn.
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- Excessive P supplye2
- Outcome
- content of Zn in the shootse2
- Direction
- decreasinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Excessive P supply significantly inhibited the translocation of Zn from roots of corn to the aboveground part, thus decreasing the content of Zn in the shoots”
Claim · model-written summary
Application of 3.0 mmol L-1 P reduced water-soluble Zn in corn and wheat plant tissues.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Treatment
- Application of 3.0 mmol L-1 Pe3
- Outcome
- water-soluble Zne3
- Direction
- reducee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e3“Application of 3.0 mmol L-1 P could also reduce the water-soluble Zn in plant tissues, leading to an increase in the cell plasma membrane permeability, a decrease in the dehydrogenase activity in roots and the activity of nitrate reductase in leaves, and a decline in the uptake of nitrate by plants”
Claim · model-written summary
Application of 3.0 mmol L-1 P increased cell plasma membrane permeability in corn and wheat.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Treatment
- Application of 3.0 mmol L-1 Pe3
- Outcome
- cell plasma membrane permeabilitye3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e3“Application of 3.0 mmol L-1 P could also reduce the water-soluble Zn in plant tissues, leading to an increase in the cell plasma membrane permeability, a decrease in the dehydrogenase activity in roots and the activity of nitrate reductase in leaves, and a decline in the uptake of nitrate by plants”
Claim · model-written summary
Application of 3.0 mmol L-1 P decreased dehydrogenase activity in the roots of corn and wheat.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Organ / stage
- rootse3
- Treatment
- Application of 3.0 mmol L-1 Pe3
- Outcome
- dehydrogenase activitye3
- Direction
- decreasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e3“Application of 3.0 mmol L-1 P could also reduce the water-soluble Zn in plant tissues, leading to an increase in the cell plasma membrane permeability, a decrease in the dehydrogenase activity in roots and the activity of nitrate reductase in leaves, and a decline in the uptake of nitrate by plants”
Claim · model-written summary
Application of 3.0 mmol L-1 P decreased nitrate reductase activity in the leaves of corn and wheat.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Organ / stage
- leavese3
- Treatment
- Application of 3.0 mmol L-1 Pe3
- Outcome
- activity of nitrate reductasee3
- Direction
- decreaseinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e3“Application of 3.0 mmol L-1 P could also reduce the water-soluble Zn in plant tissues, leading to an increase in the cell plasma membrane permeability, a decrease in the dehydrogenase activity in roots and the activity of nitrate reductase in leaves, and a decline in the uptake of nitrate by plants”
Claim · model-written summary
Application of 3.0 mmol L-1 P declined the uptake of nitrate by corn and wheat.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Treatment
- Application of 3.0 mmol L-1 Pe3
- Outcome
- uptake of nitratee3
- Direction
- declinee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e3“Application of 3.0 mmol L-1 P could also reduce the water-soluble Zn in plant tissues, leading to an increase in the cell plasma membrane permeability, a decrease in the dehydrogenase activity in roots and the activity of nitrate reductase in leaves, and a decline in the uptake of nitrate by plants”
Claim · model-written summary
Zn-deficient corn and wheat plants showed decreased superoxide dismutase and plasma membrane ATPase activity.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Treatment
- Zn-deficiente4
- Outcome
- superoxide dismutase (SOD) and plasma membrane adenosine triphosphatase (ATPase) activitye4
- Direction
- decreasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e4“A similar decrease occurred in superoxide dismutase (SOD) and plasma membrane adenosine triphosphatase (ATPase) activity in Zn-deficient plants”
Claim · model-written summary
With increasing P supply, ATPase activity in corn and wheat increased and reached its maximum at 3.0 mmol L-1 P.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse5
- Treatment
- increasing P supplye5
- Outcome
- activity of ATPasee5
- Direction
- increasede5
- Qualifier
- reached the maximum at the p-supplying level of 3.0 mmol L-1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“But, with increasing P supply, the activity of ATPase in both corn and wheat increased and reached the maximum at the p-supplying level of 3.0 mmol L-1”
Claim · model-written summary
No or low P (0.12 mmol L-1) supply was detrimental to dry matter production and physiological functioning of corn and wheat.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse0
- Treatment
- no or low P (0.12 mmol L-1 ) supplye6
- Outcome
- dry matter production and physiological functioninge6
- Direction
- detrimentale6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A solution culture experiment was conducted to investigate the growth, the accumulation and translocation of Zn, and the metabolic changes of 24 days old plants of corn and wheat”
e6“Similar to the effect of high P supply, no or low P (0.12 mmol L-1 ) supply could be detrimental to dry matter production and physiological functioning of the plants”
Claim · model-written summary
Corn showed a more significant response than wheat to the imbalanced P and Zn supply.
- Taxon
- CornZea mays subsp. mayse7
- Outcome
- response to the imbalance supply of P and Zne7
- Direction
- more significante7
- Comparator
- wheate7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Corn plants showed a more significant response to the imbalance supply of P and Zn than wheat plants”
Claim · model-written summary
The phosphorus-zinc antagonistic interaction in corn and wheat might be due to decreased physiological availability and activation of Zn.
- Taxon
- corn and wheatTriticum aestivumZea mays subsp. mayse7
- Outcome
- phosphorus-zinc antagonistic interactione7
- Qualifier
- decrease in physiological availability and activation of Zne7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The possible physiological and biochemical mechanism of phosphorus-zinc antagonistic interaction in corn and wheat might be attributed to decrease in physiological availability and activation of Zn”
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See all 15 papers →8 of 13 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.