Abstract
In plants grown without Fe or with Fe tartrate, 0.50 ppm Cu reduced Fe concentration only in the roots. When FeEDTA was used, Fe concentrations were higher in the roots at 0.04 and 0.50 ppm Cu than other treatments. Concentrations of Cu in the roots increased with the increase in Cu in the nutrient solution; in the shoots there was little difference. With FeEDTA, the Cu concentration in the roots and shoots at both levels of Cu was considerably less than with Fe tartrate or without Fe. Microprobe analysis showed accumulations of Fe in wall areas of some xylem elements in the midrib of leaves of plants grown with Fe tartrate-0.50 ppm Cu only. Iron did not accumulate in comparable tissues with Fe tartrate-0.04 ppm Cu and with FeEDTA-0.40 and 0.50 ppm Cu. Copper was distributed uniformly throughout the tissues but P accumulated only in wall areas of the cells. The localization of Fe and P in the same cell suggested that high Cu induced chlorosis by precipitation of Fe and Fe phosphate. 18 references, 4 figures, 2 tables.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
At 0.50 ppm Cu, root Fe concentration declined without Fe or with Fe tartrate.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarist0 - Organ / stage
- rootse0
- Treatment
- 0.50 ppm Cue0
- Outcome
- Fe concentratione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“In plants grown without Fe or with Fe tartrate, 0.50 ppm Cu reduced Fe concentration only in the roots.”
Claim · model-written summary
With FeEDTA, root Fe concentrations at 0.04 and 0.50 ppm Cu were higher than with other treatments.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Organ / stage
- rootse0
- Treatment
- FeEDTAe0
- Outcome
- Fe concentrationse0
- Direction
- highere0
- Qualifier
- 0.04 and 0.50 ppm Cue0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“When FeEDTA was used, Fe concentrations were higher in the roots at 0.04 and 0.50 ppm Cu than other treatments.”
Claim · model-written summary
Root Cu concentrations increased with Cu in the nutrient solution.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- Cu in the nutrient solutione0
- Outcome
- Concentrations of Cu in the rootse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Concentrations of Cu in the roots increased with the increase in Cu in the nutrient solution”
Claim · model-written summary
Shoot Cu concentrations differed little as nutrient-solution Cu increased.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- Cu in the nutrient solutione1
- Outcome
- in the shootse1
- Direction
- little differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“in the shoots there was little difference.”
e1“Concentrations of Cu in the roots increased with the increase in Cu in the nutrient solution; in the shoots there was little difference.”
Claim · model-written summary
FeEDTA yielded considerably less root and shoot Cu than Fe tartrate or no Fe at both Cu levels.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- FeEDTAe0
- Outcome
- Cu concentration in the roots and shootse0
- Direction
- considerably lesse0
- Qualifier
- at both levels of Cue0
- Comparator
- Fe tartrate or without Fee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“With FeEDTA, the Cu concentration in the roots and shoots at both levels of Cu was considerably less than with Fe tartrate or without Fe.”
Claim · model-written summary
Fe accumulated in xylem walls of leaf midribs only under Fe tartrate and 0.50 ppm Cu.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Organ / stage
- midrib of leavese0
- Treatment
- Fe tartrate-0.50 ppm Cue0
- Outcome
- accumulations of Fe in wall areas of some xylem elementse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Microprobe analysis showed accumulations of Fe in wall areas of some xylem elements in the midrib of leaves of plants grown with Fe tartrate-0.50 ppm Cu only.”
Claim · model-written summary
Fe did not accumulate in comparable tissues with Fe tartrate and 0.04 ppm Cu or FeEDTA at 0.40 and 0.50 ppm Cu.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- Fe tartrate-0.04 ppm Cu and with FeEDTA-0.40 and 0.50 ppm Cue0
- Outcome
- Iron did not accumulate in comparable tissuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Iron did not accumulate in comparable tissues with Fe tartrate-0.04 ppm Cu and with FeEDTA-0.40 and 0.50 ppm Cu.”
Claim · model-written summary
Copper was distributed uniformly through tissues.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Outcome
- Copper was distributed uniformly throughout the tissuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Copper was distributed uniformly throughout the tissues”
Claim · model-written summary
Phosphorus accumulated only in cell wall areas.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Outcome
- P accumulated only in wall areas of the cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“P accumulated only in wall areas of the cells”
Claim · model-written summary
The authors suggest high Cu causes chlorosis through precipitation of Fe and Fe phosphate.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- high Cue0
- Outcome
- chlorosise0
- Qualifier
- precipitation of Fe and Fe phosphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“The localization of Fe and P in the same cell suggested that high Cu induced chlorosis by precipitation of Fe and Fe phosphate.”
The same questions in other papers
copper atom · nutrient: content · Phaseolus vulgaris (common bean)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
See all 6 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.