Abstract
Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat. Effects of changes in copper supply on the amounts of phenolic compounds released followed closely its effect on copper concentration in the plant parts. More ferulic and less p-coumaric acid was released from the walls of young leaves of copper-deficient plants than from those of copper-adequate ones; these differences were less marked in older than in younger leaves. Copper deficiency decreased the lignin, hemicellulose and acetyl contents of cell walls only in severely deficient plants.
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Claims 7
Claim · model-written summary
Copper deficiency affected the amounts of phenolic compounds released from cell walls of young wheat leaves before yield decreased significantly.
- Taxon
- wheat
Triticum aestivume1 - Organ / stage
- young leavese1
- Treatment
- copper deficiencye1
- Outcome
- amounts of phenolic compounds releasede1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
Claim · model-written summary
Copper deficiency decreased yield significantly.
- Taxon
- wheatTriticum aestivume1
- Treatment
- copper deficiencye1
- Outcome
- yielde1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
Claim · model-written summary
Changes in copper supply were associated with the amounts of phenolic compounds released, which followed closely the copper concentration in plant parts.
- Taxon
- wheatTriticum aestivume1
- Treatment
- changes in copper supplye2
- Outcome
- amounts of phenolic compounds releasede2
- Qualifier
- followed closely its effect on copper concentration in the plant partse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
e2“Effects of changes in copper supply on the amounts of phenolic compounds released followed closely its effect on copper concentration in the plant parts”
Claim · model-written summary
Copper-deficient wheat young leaves released more ferulic acid from cell walls than copper-adequate ones.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- young leavese3
- Treatment
- copper-deficient plantse3
- Outcome
- ferulice3
- Direction
- Moree3
- Comparator
- copper-adequate onese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
e3“More ferulic and less p-coumaric acid was released from the walls of young leaves of copper-deficient plants than from those of copper-adequate ones”
Claim · model-written summary
Copper-deficient wheat young leaves released less p-coumaric acid from cell walls than copper-adequate ones.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- young leavese3
- Treatment
- copper-deficient plantse3
- Outcome
- p-coumaric acide3
- Direction
- lesse3
- Comparator
- copper-adequate onese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
e3“More ferulic and less p-coumaric acid was released from the walls of young leaves of copper-deficient plants than from those of copper-adequate ones”
Claim · model-written summary
The differences in phenolic release between copper-deficient and copper-adequate plants were less marked in older leaves than in younger leaves.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- oldere4
- Outcome
- differencese4
- Direction
- less markede4
- Comparator
- younger leavese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
e4“these differences were less marked in older than in younger leaves”
Claim · model-written summary
Copper deficiency decreased the lignin, hemicellulose and acetyl contents of cell walls only in severely deficient plants.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Copper deficiencye5
- Outcome
- lignin, hemicellulose and acetyl contents of cell wallse5
- Direction
- decreasede5
- Qualifier
- only in severely deficient plantse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Before decreasing yield significantly, copper deficiency affected the amounts of phenolic compounds released (by treatment with sodium hydroxide) from the cell walls separated from young leaves of wheat”
e5“Copper deficiency decreased the lignin, hemicellulose and acetyl contents of cell walls only in severely deficient plants”
The same questions in other papers
copper atom · yield · Triticum aestivum (wheat)Results differ
62 papers in the same direction as this paper · 12 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
71 papers more in this group
See all 75 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.