Abstract
Elevated atmospheric CO2 (eCO2) and iron (Fe) availability are important factors affecting plant growth that may impact the proteomic profile of crop plants. In this study, soybean plants treated under Fe-limited (0.5 mM) and Fe-sufficient (20 mM) conditions were grown at ambient (400 μmol mol−1) and eCO2 (800 μmol mol−1) in hydroponic solutions. Elevated CO2 increased biomass from 2.14 to 3.14 g plant−1 and from 1.18 to 2.91 g plant−1 under Fe-sufficient and Fe-limited conditions, respectively, but did not affect leaf photosynthesis. Sugar concentration increased from 10.92 to 26.17 μmol g FW−1 in roots of Fe-sufficient plants and from 8.75 to 19.89 μmol g FW−1 of Fe-limited plants after exposure to eCO2. In leaves, sugar concentration increased from 33.62 to 52.22 μmol g FW−1 and from 34.80 to 46.70 μmol g FW−1 in Fe-sufficient and Fe-limited conditions, respectively, under eCO2. However, Fe-limitation decreases photosynthesis and biomass. Pathway enrichment analysis showed that cell wall organization, glutathione metabolism, photosynthesis, stress-related proteins, and biosynthesis of secondary compounds changed in root tissues to cope with Fe-stress. Moreover, under eCO2, at sufficient or limited Fe supply, it was shown an increase in the abundance of proteins involved in glycolysis, starch and sucrose metabolism, biosynthesis of plant hormones gibberellins, and decreased levels of protein biosynthesis. Our results revealed that proteins and metabolic pathways related to Fe-limitation changed the effects of eCO2 and negatively impacted soybean production.
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Claims 14
Claim · model-written summary
Elevated CO2 increased soybean biomass from 2.14 to 3.14 g plant−1 with sufficient Fe.
- Taxon
- soybean
Glycine maxe1 - Treatment
- Elevated CO2e0
- Outcome
- biomasse0
- Direction
- increasede0
- Value
- 3.14 g plant−1e0
- Qualifier
- Fe-sufficiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated CO2 increased biomass from 2.14 to 3.14 g plant−1 and from 1.18 to 2.91 g plant−1 under Fe-sufficient and Fe-limited conditions, respectively”
e1“soybean plants”
Claim · model-written summary
Elevated CO2 increased soybean biomass from 1.18 to 2.91 g plant−1 with limited Fe.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Elevated CO2e0
- Outcome
- biomasse0
- Direction
- increasede0
- Value
- 2.91 g plant−1e0
- Qualifier
- Fe-limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated CO2 increased biomass from 2.14 to 3.14 g plant−1 and from 1.18 to 2.91 g plant−1 under Fe-sufficient and Fe-limited conditions, respectively”
e1“soybean plants”
Claim · model-written summary
Elevated CO2 did not affect soybean leaf photosynthesis.
- Taxon
- soybeanGlycine maxe2
- Treatment
- Elevated CO2e1
- Outcome
- leaf photosynthesise0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but did not affect leaf photosynthesis”
e1“Elevated CO2 increased biomass”
e2“soybean plants”
Claim · model-written summary
Elevated CO2 increased root sugar concentration to 26.17 μmol g FW−1 under sufficient Fe.
- Taxon
- soybeanGlycine maxe2
- Organ / stage
- rootse0
- Treatment
- eCO2e1
- Outcome
- Sugar concentratione0
- Direction
- increasede0
- Value
- 26.17 μmol g FW−1e0
- Qualifier
- Fe-sufficiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar concentration increased from 10.92 to 26.17 μmol g FW−1 in roots of Fe-sufficient plants”
e1“exposure to eCO2”
e2“soybean plants”
Claim · model-written summary
Elevated CO2 increased root sugar concentration to 19.89 μmol g FW−1 under limited Fe.
- Taxon
- soybeanGlycine maxe3
- Organ / stage
- rootse2
- Treatment
- eCO2e0
- Outcome
- Sugar concentratione1
- Direction
- increasede1
- Value
- 19.89 μmol g FW−1e0
- Qualifier
- Fe-limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from 8.75 to 19.89 μmol g FW−1 of Fe-limited plants after exposure to eCO2”
e1“Sugar concentration increased”
e2“in roots of Fe-sufficient plants”
e3“soybean plants”
Claim · model-written summary
Elevated CO2 increased leaf sugar concentration to 52.22 μmol g FW−1 under sufficient Fe.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- leavese0
- Treatment
- eCO2e0
- Outcome
- sugar concentratione0
- Direction
- increasede0
- Value
- 52.22 μmol g FW−1e0
- Qualifier
- Fe-sufficiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In leaves, sugar concentration increased from 33.62 to 52.22 μmol g FW−1 and from 34.80 to 46.70 μmol g FW−1 in Fe-sufficient and Fe-limited conditions, respectively, under eCO2”
e1“soybean plants”
Claim · model-written summary
Elevated CO2 increased leaf sugar concentration to 46.70 μmol g FW−1 under limited Fe.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- leavese0
- Treatment
- eCO2e0
- Outcome
- sugar concentratione0
- Direction
- increasede0
- Value
- 46.70 μmol g FW−1e0
- Qualifier
- Fe-limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In leaves, sugar concentration increased from 33.62 to 52.22 μmol g FW−1 and from 34.80 to 46.70 μmol g FW−1 in Fe-sufficient and Fe-limited conditions, respectively, under eCO2”
e1“soybean plants”
Claim · model-written summary
Fe limitation decreased soybean photosynthesis.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Fe-limitatione0
- Outcome
- photosynthesise0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe-limitation decreases photosynthesis and biomass”
e1“soybean plants”
Claim · model-written summary
Fe limitation decreased soybean biomass.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Fe-limitatione0
- Outcome
- biomasse0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe-limitation decreases photosynthesis and biomass”
e1“soybean plants”
Claim · model-written summary
Fe stress changed root pathways involving cell wall organization, glutathione metabolism and photosynthesis.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- root tissuese0
- Treatment
- Fe-stresse0
- Outcome
- cell wall organization, glutathione metabolism, photosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cell wall organization, glutathione metabolism, photosynthesis, stress-related proteins, and biosynthesis of secondary compounds changed in root tissues to cope with Fe-stress”
e1“soybean plants”
Claim · model-written summary
Fe stress changed root stress-related proteins and secondary-compound biosynthesis.
- Taxon
- soybeanGlycine maxe1
- Organ / stage
- root tissuese0
- Treatment
- Fe-stresse0
- Outcome
- stress-related proteins, and biosynthesis of secondary compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress-related proteins, and biosynthesis of secondary compounds changed in root tissues to cope with Fe-stress”
e1“soybean plants”
Claim · model-written summary
Elevated CO2 increased proteins involved in glycolysis and starch and sucrose metabolism at both Fe levels.
- Taxon
- soybeanGlycine maxe1
- Treatment
- eCO2e0
- Outcome
- abundance of proteins involved in glycolysis, starch and sucrose metabolisme0
- Direction
- increasee0
- Qualifier
- at sufficient or limited Fe supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under eCO2, at sufficient or limited Fe supply, it was shown an increase in the abundance of proteins involved in glycolysis, starch and sucrose metabolism, biosynthesis of plant hormones gibberellins, and decreased levels of protein biosynthesis”
e1“soybean plants”
Claim · model-written summary
Elevated CO2 increased proteins involved in gibberellin biosynthesis at both Fe levels.
- Taxon
- soybeanGlycine maxe1
- Treatment
- eCO2e0
- Outcome
- biosynthesis of plant hormones gibberellinse0
- Direction
- increasee0
- Qualifier
- at sufficient or limited Fe supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under eCO2, at sufficient or limited Fe supply, it was shown an increase in the abundance of proteins involved in glycolysis, starch and sucrose metabolism, biosynthesis of plant hormones gibberellins”
e1“soybean plants”
Claim · model-written summary
Elevated CO2 decreased protein biosynthesis levels at both Fe levels.
- Taxon
- soybeanGlycine maxe1
- Treatment
- eCO2e0
- Outcome
- levels of protein biosynthesise0
- Direction
- decreasede0
- Qualifier
- at sufficient or limited Fe supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under eCO2, at sufficient or limited Fe supply, it was shown an increase in the abundance of proteins involved in glycolysis, starch and sucrose metabolism, biosynthesis of plant hormones gibberellins, and decreased levels of protein biosynthesis”
e1“soybean plants”
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