Abstract
The synthesis of commercial EDDHA produces o,o-EDDHA as the main reaction product, together with a mixture of regioisomers (o,p-EDDHA and p,p-EDDHA) and other unknown byproducts also able to complex Fe3+. These compounds have been obtained by direct synthesis, and their structures have been determined by ESI-MS analysis as oligomeric EDDHA-like products, formed by polysubstitution in the phenolic rings. Short-term experiments show that the iron complexes of samples enriched in these oligomeric byproducts have adequate stability in solution, but a significant amount of them is lost after interaction with soils and soil materials. Mildly chlorotic cucumber plants are able to reduce iron better from o,p-EDDHA/Fe3+ than from the iron complexes of the oligomeric byproducts. In hydroponics, the chlorotic soybean susceptible plants have a lower potential for Fe absorption from these byproducts than from o,o-EDDHA/Fe3+ and from o,p-EDDHA/Fe3+. In the studied conditions, the iron chelates of EDDHA byproducts do not have the long-lasting effect shown by o,o-EDDHA/Fe3+ and present a less efficient fast-action effect than the o,p-EDDHA/Fe3+.
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Claims 5
Claim · model-written summary
Chlorotic cucumber reduced iron better from o,p-EDDHA/Fe3+ than from oligomeric byproducts.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- o,p-EDDHA/Fe3+e0
- Outcome
- reduce irone0
- Direction
- bettere0
- Comparator
- iron complexes of the oligomeric byproductse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mildly chlorotic cucumber plants are able to reduce iron better from o,p-EDDHA/Fe3+ than from the iron complexes of the oligomeric byproducts.”
Claim · model-written summary
Chlorotic soybean had lower Fe absorption potential from byproducts than from o,o-EDDHA/Fe3+.
- Taxon
- soybean
Glycine maxe0 - Treatment
- these byproductse0
- Outcome
- potential for Fe absorptione0
- Direction
- lowere0
- Comparator
- o,o-EDDHA/Fe3+e0
- Setting
- hydroponicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In hydroponics, the chlorotic soybean susceptible plants have a lower potential for Fe absorption from these byproducts than from o,o-EDDHA/Fe3+ and from o,p-EDDHA/Fe3+.”
Claim · model-written summary
Chlorotic soybean had lower Fe absorption potential from byproducts than from o,p-EDDHA/Fe3+.
- Taxon
- soybeanGlycine maxe0
- Treatment
- these byproductse0
- Outcome
- potential for Fe absorptione0
- Direction
- lowere0
- Comparator
- o,p-EDDHA/Fe3+e0
- Setting
- hydroponicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In hydroponics, the chlorotic soybean susceptible plants have a lower potential for Fe absorption from these byproducts than from o,o-EDDHA/Fe3+ and from o,p-EDDHA/Fe3+.”
Claim · model-written summary
Byproduct chelates lacked the long lasting effect of o,o-EDDHA/Fe3+.
- Taxon
- soybeanGlycine maxe1
- Treatment
- iron chelates of EDDHA byproductse0
- Outcome
- long-lasting effecte0
- Direction
- do not havee0
- Comparator
- o,o-EDDHA/Fe3+e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the iron chelates of EDDHA byproducts do not have the long-lasting effect shown by o,o-EDDHA/Fe3+ and present a less efficient fast-action effect than the o,p-EDDHA/Fe3+.”
e1“the chlorotic soybean susceptible plants”
Claim · model-written summary
Byproduct chelates had a less efficient fast action effect than o,p-EDDHA/Fe3+.
- Taxon
- soybeanGlycine maxe1
- Treatment
- iron chelates of EDDHA byproductse0
- Outcome
- fast-action effecte0
- Direction
- less efficiente0
- Comparator
- o,p-EDDHA/Fe3+e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the iron chelates of EDDHA byproducts do not have the long-lasting effect shown by o,o-EDDHA/Fe3+ and present a less efficient fast-action effect than the o,p-EDDHA/Fe3+.”
e1“the chlorotic soybean susceptible plants”
The same questions in other papers
iron(3+) · nutrient: content · Cucumis sativus (cucumber)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
See all 5 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.