Abstract
Solution culture studies have demonstrated that apoplasmic iron (Fe) deposited in the roots of dicotyledonous and graminaceous plants can be mobilized to improve plant iron status in conditions of limited Fe supply. The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants in a pot experiment. The pots had three compartments such that plants could take up Fe and other nutrients from two calcareous soils treated with different Fe forms without their roots touching with soil directly. In this way overestimating Fe accumulation in root apoplasm was avoided. The results showed that while the root d.wt of wheat did not vary when soils were supplied with different Fe resources, the root d. wt of soybean and cucumber supplied with FeEDTA decreased compared with the control (without Fe treatment). Supplying FeEDTA in the side compartment increased shoot d. wt and Fe concentration in shoots of all species. However, supplying Fe(OH) 3 had no effect on shoot d. wt or Fe concentration in the shoots of any species. Soybean and cucumber accumulated little or no Fe in the root apoplasm in controls or in Fe(OH) 3 treatments. By contrast, a large amount of Fe was deposited in the root apoplasm of wheat grown in similar conditions. Remarkably, when FeEDTA was supplied in the soils, large apoplasmic iron pools were formed in the roots of all three species. Therefore, in dicotyledonous plants grown on calcareous soils, little or no apoplasmic iron pool forms, because there is not enough available Fe in the soil solution and the plants have little ability to mobilize Fe 3+ in the soil. By contrast, a larger apoplasmic iron pool could form in graminaceous plants at lower concentrations of available soil‐Fe possibly by enhancing the release of phytosiderophores which could mobilize Fe 3+ in the soil and then transfer the Fe 3+ ‐complexes to the root apoplasm.
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 15
Claim · model-written summary
Wheat root dry weight did not vary across Fe resources.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- roote0
- Treatment
- different Fe resourcese0
- Outcome
- root d.wte0
- Direction
- did not varye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that while the root d.wt of wheat did not vary when soils were supplied with different Fe resources, the root d. wt of soybean and cucumber supplied with FeEDTA decreased compared with the control (without Fe treatment).”
Claim · model-written summary
soybean root dry weight decreased with FeEDTA.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- roote0
- Treatment
- FeEDTAe0
- Outcome
- root d. wte0
- Direction
- decreasede0
- Comparator
- control (without Fe treatment)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that while the root d.wt of wheat did not vary when soils were supplied with different Fe resources, the root d. wt of soybean and cucumber supplied with FeEDTA decreased compared with the control (without Fe treatment).”
Claim · model-written summary
cucumber root dry weight decreased with FeEDTA.
- Taxon
- cucumber
Cucumis sativuse0 - Organ / stage
- roote0
- Treatment
- FeEDTAe0
- Outcome
- root d. wte0
- Direction
- decreasede0
- Comparator
- control (without Fe treatment)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that while the root d.wt of wheat did not vary when soils were supplied with different Fe resources, the root d. wt of soybean and cucumber supplied with FeEDTA decreased compared with the control (without Fe treatment).”
Claim · model-written summary
soybean shoot dry weight and Fe concentration increased with FeEDTA.
- Taxon
- soybeanGlycine maxe1
- Treatment
- FeEDTAe0
- Outcome
- shoot d. wt and Fe concentration in shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplying FeEDTA in the side compartment increased shoot d. wt and Fe concentration in shoots of all species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
cucumber shoot dry weight and Fe concentration increased with FeEDTA.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- FeEDTAe0
- Outcome
- shoot d. wt and Fe concentration in shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplying FeEDTA in the side compartment increased shoot d. wt and Fe concentration in shoots of all species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
wheat shoot dry weight and Fe concentration increased with FeEDTA.
- Taxon
- wheatTriticum aestivume2
- Treatment
- FeEDTAe0
- Outcome
- shoot d. wt and Fe concentration in shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplying FeEDTA in the side compartment increased shoot d. wt and Fe concentration in shoots of all species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
soybean shoot dry weight and Fe concentration did not respond to Fe(OH) 3.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Fe(OH) 3e0
- Outcome
- shoot d. wt or Fe concentration in the shootse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, supplying Fe(OH) 3 had no effect on shoot d. wt or Fe concentration in the shoots of any species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
cucumber shoot dry weight and Fe concentration did not respond to Fe(OH) 3.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- Fe(OH) 3e0
- Outcome
- shoot d. wt or Fe concentration in the shootse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, supplying Fe(OH) 3 had no effect on shoot d. wt or Fe concentration in the shoots of any species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
wheat shoot dry weight and Fe concentration did not respond to Fe(OH) 3.
- Taxon
- wheatTriticum aestivume2
- Treatment
- Fe(OH) 3e0
- Outcome
- shoot d. wt or Fe concentration in the shootse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, supplying Fe(OH) 3 had no effect on shoot d. wt or Fe concentration in the shoots of any species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
Soybean had little or no root apoplasmic Fe in controls or Fe(OH)3 treatments.
- Taxon
- SoybeanGlycine maxe0
- Organ / stage
- root apoplasme0
- Treatment
- Fe(OH) 3 treatmentse0
- Outcome
- little or no Fee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean and cucumber accumulated little or no Fe in the root apoplasm in controls or in Fe(OH) 3 treatments.”
Claim · model-written summary
cucumber had little or no root apoplasmic Fe in controls or Fe(OH)3 treatments.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- root apoplasme0
- Treatment
- Fe(OH) 3 treatmentse0
- Outcome
- little or no Fee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean and cucumber accumulated little or no Fe in the root apoplasm in controls or in Fe(OH) 3 treatments.”
Claim · model-written summary
Wheat accumulated a large root apoplasmic Fe pool under comparable conditions.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- root apoplasme0
- Outcome
- a large amount of Fee0
- Direction
- largee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By contrast, a large amount of Fe was deposited in the root apoplasm of wheat grown in similar conditions.”
Claim · model-written summary
soybean formed a large root apoplasmic iron pool with soil FeEDTA.
- Taxon
- soybeanGlycine maxe1
- Treatment
- FeEDTAe0
- Outcome
- apoplasmic iron poolse0
- Direction
- largee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Remarkably, when FeEDTA was supplied in the soils, large apoplasmic iron pools were formed in the roots of all three species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
cucumber formed a large root apoplasmic iron pool with soil FeEDTA.
- Taxon
- cucumberCucumis sativuse1
- Treatment
- FeEDTAe0
- Outcome
- apoplasmic iron poolse0
- Direction
- largee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Remarkably, when FeEDTA was supplied in the soils, large apoplasmic iron pools were formed in the roots of all three species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
Claim · model-written summary
wheat formed a large root apoplasmic iron pool with soil FeEDTA.
- Taxon
- wheatTriticum aestivume2
- Treatment
- FeEDTAe0
- Outcome
- apoplasmic iron poolse0
- Direction
- largee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Remarkably, when FeEDTA was supplied in the soils, large apoplasmic iron pools were formed in the roots of all three species.”
e1“dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
e2“The present study investigated the formation of the apoplasmic Fe pool in dicotyledonous (soybean and cucumber) and graminaceous (wheat) plants”
The same questions in other papers
iron atom · nutrient: content · Triticum aestivum (wheat)Results differ
12 papers in the same direction as this paper · 61 in the opposite direction
- positive
- positive
- positive
70 papers more in this group
See all 74 papers →iron atom · nutrient: content · Cucumis sativus (cucumber)Positive and negative results
3 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →iron atom · nutrient: content · Glycine max (soybean)Positive and negative results
12 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
34 papers more in this group
See all 38 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.