Abstract
In order to compare the uptake, utilization and distribution of iron (Fe) as nano and bulk Fe complex (Fe(III)-EDTA), an experiment was conducted using hydroponically-grown Fe-deficient tobacco (Nicotiana rustica L.) plants.Plants were treated with Fe either through roots (root application, RA) or leaves (foliar application, FA).Leaf chlorophyll concentration and plants biomass responded to the Fe re-supply; this response was quicker for the nano Fe complex than the bulk Fe complex, in particular, in the RA plants.Plants re-supplied with the nano Fe complex had lower Fe content but higher Fe use efficiency than plants re-supplied with the bulk Fe complex.Analysis of different plant fractions at two subsequent weeks revealed that the nano Fe complex had higher mobility than the bulk Fe complex, both in the xylem and the phloem.Comparison of RA and FA revealed that the re-supply of Fe through roots was more efficient in retrieving the whole plant growth than the foliar Fe spray.RA, in contrast to FA plants, profited from an enhanced Fe uptake capacity induced under Fe starvation in the roots.Alternatively, FA was effective in extending the green leaf area duration.Our data suggested that nano Fe complex is advantageous as both leaf spray and a long-term feeding of plant through roots.
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Claims 10
Claim · model-written summary
Leaf chlorophyll responded more quickly to nano Fe than bulk Fe, particularly with root application.
- Taxon
- tobacco plants
Nicotiana tabacumt0 - Treatment
- nano Fe complexe0
- Outcome
- Leaf chlorophyll concentratione0
- Direction
- quickere0
- Qualifier
- in the RA plantse0
- Comparator
- bulk Fe complexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf chlorophyll concentration and plants biomass responded to the Fe re-supply; this response was quicker for the nano Fe complex than the bulk Fe complex, in particular, in the RA plants.”
t0“tobacco plants”
Claim · model-written summary
Plant biomass responded more quickly to nano Fe than bulk Fe, particularly with root application.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- nano Fe complexe0
- Outcome
- plants biomasse0
- Direction
- quickere0
- Comparator
- bulk Fe complexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf chlorophyll concentration and plants biomass responded to the Fe re-supply; this response was quicker for the nano Fe complex than the bulk Fe complex, in particular, in the RA plants.”
t0“tobacco plants”
Claim · model-written summary
Nano Fe resupply gave lower Fe content than bulk Fe.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- nano Fe complexe0
- Outcome
- Fe contente0
- Direction
- lowere0
- Comparator
- bulk Fe complexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants re-supplied with the nano Fe complex had lower Fe content but higher Fe use efficiency than plants re-supplied with the bulk Fe complex.”
t0“tobacco plants”
Claim · model-written summary
Nano Fe resupply gave higher Fe use efficiency than bulk Fe.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- nano Fe complexe0
- Outcome
- Fe use efficiencye0
- Direction
- highere0
- Comparator
- bulk Fe complexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants re-supplied with the nano Fe complex had lower Fe content but higher Fe use efficiency than plants re-supplied with the bulk Fe complex.”
t0“tobacco plants”
Claim · model-written summary
Nano Fe had higher xylem mobility than bulk Fe.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Organ / stage
- xyleme0
- Treatment
- nano Fe complexe0
- Outcome
- mobilitye0
- Direction
- highere0
- Comparator
- bulk Fe complexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nano Fe complex had higher mobility than the bulk Fe complex, both in the xylem and the phloem.”
t0“tobacco plants”
Claim · model-written summary
Nano Fe had higher phloem mobility than bulk Fe.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Organ / stage
- phloeme0
- Treatment
- nano Fe complexe0
- Outcome
- mobilitye0
- Direction
- highere0
- Comparator
- bulk Fe complexe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nano Fe complex had higher mobility than the bulk Fe complex, both in the xylem and the phloem.”
t0“tobacco plants”
Claim · model-written summary
Root Fe resupply restored whole-plant growth more efficiently than foliar spray.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- re-supply of Fe through rootse0
- Outcome
- whole plant growthe0
- Direction
- more efficiente0
- Comparator
- foliar Fe spraye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the re-supply of Fe through roots was more efficient in retrieving the whole plant growth than the foliar Fe spray.”
t0“tobacco plants”
Claim · model-written summary
Root-applied plants benefited from enhanced Fe uptake capacity induced by Fe starvation.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- RAe0
- Outcome
- Fe uptake capacitye0
- Direction
- enhancede0
- Qualifier
- under Fe starvation in the rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RA, in contrast to FA plants, profited from an enhanced Fe uptake capacity induced under Fe starvation in the roots.”
t0“tobacco plants”
Claim · model-written summary
Foliar application extended green leaf area duration.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- FAe0
- Outcome
- green leaf area duratione0
- Direction
- extendinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FA was effective in extending the green leaf area duration.”
t0“tobacco plants”
Claim · model-written summary
The authors suggest nano Fe complex for leaf spray and long-term root feeding.
- Taxon
- tobacco plantsNicotiana tabacumt0
- Treatment
- nano Fe complexe0
- Outcome
- leaf spray and a long-term feeding of plant through rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nano Fe complex is advantageous as both leaf spray and a long-term feeding of plant through roots.”
t0“tobacco plants”
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