Abstract
Legume grains have an important socio-economical role, being highly utilized in human and animal nutrition. Although iron (Fe) is abundant in the earths crust, its limited solubility makes it poorly bioavailable for plants, contributing to iron deficiency chlorosis (IDC). In this work the physiological and molecular mechanisms associated with IDC were studied, namely, the mechanisms involved on Fe deficiency response, as well as a new Fe metabolism related gene in two important legume crops, Glycine max and Medicago truncatula. Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels. Fe shoot content decreased six- and 11-fold for G. max and M truncatula in Fe-deficiency. Whilst in G. max roots no significant differences were detected, in M. truncatula roots Fe decreased nine-fold in Fe-deficiency. Genes involved in Fe uptake (FRO2-like and IRT1-like), were over-expressed in roots of Fe-sufficient G. max and in Fe-deficient M. truncatula. VIT1-like, YSL1-like and ferritin presented higher expression levels in Fe-sufficient shoots and roots, whereas NRAMP3-like and GCN2-like showed higher expression values in Fe-deficiency.
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Claims 16
Claim · model-written summary
Fe-deficient G. max plants showed decreased root and shoot length.
- Taxon
- Glycine max
Glycine maxe1 - Treatment
- Fe deficiente0
- Outcome
- root and shoot lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
Fe-deficient G. max plants showed an increased number of secondary roots.
- Taxon
- Glycine maxGlycine maxe1
- Treatment
- Fe deficiente0
- Outcome
- number of secondary rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
Fe-deficient G. max plants showed lower chlorophyll levels.
- Taxon
- Glycine maxGlycine maxe1
- Treatment
- Fe deficiente0
- Outcome
- chlorophyll levelse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
In G. max, shoot Fe content decreased six-fold under Fe deficiency.
- Taxon
- G. maxGlycine maxe2
- Organ / stage
- shoote2
- Treatment
- Fe-deficiencye2
- Outcome
- Fe shoot contente2
- Direction
- decreasede2
- Value
- six-e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Fe shoot content decreased six- and 11-fold for G. max and M truncatula in Fe-deficiency”
Claim · model-written summary
In G. max roots, Fe showed no significant difference under Fe deficiency.
- Taxon
- G. maxGlycine maxe3
- Organ / stage
- rootse3
- Treatment
- Fe-deficiencye3
- Outcome
- Fee3
- Direction
- no significant differencese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Whilst in G. max roots no significant differences were detected, in M. truncatula roots Fe decreased nine-fold in Fe-deficiency”
Claim · model-written summary
In G. max roots of Fe-sufficient plants, FRO2-like and IRT1-like were over-expressed.
- Taxon
- G. maxGlycine maxe4
- Organ / stage
- rootse4
- Treatment
- Fe-sufficiente4
- Gene
- FRO2-like and IRT1-likee4
- Outcome
- Genes involved in Fe uptakee4
- Direction
- over-expressede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Genes involved in Fe uptake (FRO2-like and IRT1-like), were over-expressed in roots of Fe-sufficient G. max and in Fe-deficient M. truncatula”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
In G. max, VIT1-like, YSL1-like and ferritin had higher expression in Fe-sufficient shoots and roots.
- Taxon
- Glycine maxGlycine maxe1
- Organ / stage
- shoots and rootse5
- Treatment
- Fe-sufficiente5
- Gene
- VIT1-like, YSL1-like and ferritine5
- Outcome
- expression levelse5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“VIT1-like, YSL1-like and ferritin presented higher expression levels in Fe-sufficient shoots and roots, whereas NRAMP3-like and GCN2-like showed higher expression values in Fe-deficiency”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
In G. max, NRAMP3-like and GCN2-like had higher expression under Fe deficiency.
- Taxon
- Glycine maxGlycine maxe1
- Treatment
- Fe-deficiencye5
- Gene
- NRAMP3-like and GCN2-likee5
- Outcome
- expression valuese5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“VIT1-like, YSL1-like and ferritin presented higher expression levels in Fe-sufficient shoots and roots, whereas NRAMP3-like and GCN2-like showed higher expression values in Fe-deficiency”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
Fe-deficient M. truncatula plants showed decreased root and shoot length.
- Taxon
- Medicago truncatula
Medicago truncatulae1 - Treatment
- Fe deficiente0
- Outcome
- root and shoot lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
Fe-deficient M. truncatula plants showed an increased number of secondary roots.
- Taxon
- Medicago truncatulaMedicago truncatulae1
- Treatment
- Fe deficiente0
- Outcome
- number of secondary rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
Fe-deficient M. truncatula plants showed lower chlorophyll levels.
- Taxon
- Medicago truncatulaMedicago truncatulae1
- Treatment
- Fe deficiente0
- Outcome
- chlorophyll levelse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe deficient plants developed: decreased root and shoot length, increased number of secondary roots and lower chlorophyll levels”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
In M. truncatula, shoot Fe content decreased 11-fold under Fe deficiency.
- Taxon
- M truncatulaMedicago truncatulae2
- Organ / stage
- shoote2
- Treatment
- Fe-deficiencye2
- Outcome
- Fe shoot contente2
- Direction
- decreasede2
- Value
- 11-folde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Fe shoot content decreased six- and 11-fold for G. max and M truncatula in Fe-deficiency”
Claim · model-written summary
In M. truncatula roots, Fe decreased nine-fold under Fe deficiency.
- Taxon
- M. truncatulaMedicago truncatulae3
- Organ / stage
- rootse3
- Treatment
- Fe-deficiencye3
- Outcome
- Fee3
- Direction
- decreasede3
- Value
- nine-folde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Whilst in G. max roots no significant differences were detected, in M. truncatula roots Fe decreased nine-fold in Fe-deficiency”
Claim · model-written summary
In Fe-deficient M. truncatula roots, FRO2-like and IRT1-like were over-expressed.
- Taxon
- M. truncatulaMedicago truncatulae4
- Organ / stage
- rootse4
- Treatment
- Fe-deficiente4
- Gene
- FRO2-like and IRT1-likee4
- Outcome
- Genes involved in Fe uptakee4
- Direction
- over-expressede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Genes involved in Fe uptake (FRO2-like and IRT1-like), were over-expressed in roots of Fe-sufficient G. max and in Fe-deficient M. truncatula”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
In M. truncatula, VIT1-like, YSL1-like and ferritin had higher expression in Fe-sufficient shoots and roots.
- Taxon
- Medicago truncatulaMedicago truncatulae1
- Organ / stage
- shoots and rootse5
- Treatment
- Fe-sufficiente5
- Gene
- VIT1-like, YSL1-like and ferritine5
- Outcome
- expression levelse5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“VIT1-like, YSL1-like and ferritin presented higher expression levels in Fe-sufficient shoots and roots, whereas NRAMP3-like and GCN2-like showed higher expression values in Fe-deficiency”
e1“in two important legume crops, Glycine max and Medicago truncatula”
Claim · model-written summary
In M. truncatula, NRAMP3-like and GCN2-like had higher expression under Fe deficiency.
- Taxon
- Medicago truncatulaMedicago truncatulae1
- Treatment
- Fe-deficiencye5
- Gene
- NRAMP3-like and GCN2-likee5
- Outcome
- expression valuese5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“VIT1-like, YSL1-like and ferritin presented higher expression levels in Fe-sufficient shoots and roots, whereas NRAMP3-like and GCN2-like showed higher expression values in Fe-deficiency”
e1“in two important legume crops, Glycine max and Medicago truncatula”
The same questions in other papers
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This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- no effect
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This paper is about lacking the nutrient, so it counts the other way round here.
- positive
iron atom · physiology: pigments · Medicago truncatula (barrel medic)Results agree
1 paper in the same direction as this paper
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
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.