Paper · 2017 · American Journal of Climate Change

Impact of Elevated CO2 on Wheat Growth and Yield under Free Air CO2 Enrichment

Vivek Pandey; Marisha Sharma; Farah Deeba; et al.

18
claims
36
verbatim quotes
25
citations
3
research areas
✓
Open access · cc-by

Abstract

Impact of elevated CO2 (free air CO2 enrichment) was studied on wheat (Triticum aestivum L. var Kundan) growth, yield and proteome. Elevated CO2 significantly impacted both underground (+24%) and aboveground (+15%) biomass. Grain weight/plant and harvest index were increased by 35% and 11.4%, respectively under high CO2. On the other hand, seed protein content was decreased by 19% under CO2 enrichment while seed starch and soluble sugar contents were increased by 8% and 23%, respectively. Wheat leaf proteomics revealed that 50 proteins were showing differential expression. Twenty proteins were more abundant while 30 were less abundant. Thirty two proteins were identified by MALDI TOF TOF. More abundant proteins were related to defense, photosynthesis, energy metabolism etc. While less abundant proteins were related to glycolysis and gluconeogenesis. Wheat grain proteomics revealed that out of 49 differentially abundant proteins, 24 were more in abundance and 25 were less in abundance in wheat grains under eCO2 condition. Thirty three proteins were identified and functionally characterized. They were found to be involved mainly in carbon metabolism, storage, defence and proteolysis. Gluten proteins are the major component of wheat storage proteins. Our results showed that both high and low molecular weight glutenins were more in eCO2 wheat seeds while there was no change in gliadin evels. This might alter wheat dough strength. Concentration of grain Cr and As was increased at eCO2 while that of Fe, Cu, Zn and Se were found to be decreased. Dynamics of carbon utilization and metabolic abilities of soil microbes under eCO2 were significantly altered. Our study showed that altered wheat seed composition is cause for concern vis-à-vis nutrition and health and for industries which may have implications for agriculturally dominated country like India.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 18

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Elevated CO2 increased underground biomass by 24%.

Treatment
Elevated CO2e0
Outcome
undergrounde0
Value
+24%e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Elevated CO2 significantly impacted both underground (+24%) and aboveground (+15%) biomass.”

✓ located verbatim in the source · abstract, characters 132–223 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Elevated CO2 increased aboveground biomass by 15%.

Treatment
Elevated CO2e0
Outcome
abovegrounde0
Value
+15%e0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Elevated CO2 significantly impacted both underground (+24%) and aboveground (+15%) biomass.”

✓ located verbatim in the source · abstract, characters 132–223 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain weight per plant increased by 35% under high CO2.

Treatment
high CO2e0
Outcome
Grain weight/plante0
Direction
increasede0
Value
35%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain weight/plant and harvest index were increased by 35% and 11.4%, respectively under high CO2.”

✓ located verbatim in the source · abstract, characters 224–322 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Harvest index increased by 11.4% under high CO2.

Treatment
high CO2e0
Outcome
harvest indexe0
Direction
increasede0
Value
11.4%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain weight/plant and harvest index were increased by 35% and 11.4%, respectively under high CO2.”

✓ located verbatim in the source · abstract, characters 224–322 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

seed protein content changed by 19% under CO2 enrichment.

Treatment
CO2 enrichmente0
Outcome
seed protein contente0
Direction
decreasede0
Value
19%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“On the other hand, seed protein content was decreased by 19% under CO2 enrichment while seed starch and soluble sugar contents were increased by 8% and 23%, respectively.”

✓ located verbatim in the source · abstract, characters 323–493 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

seed starch changed by 8% under CO2 enrichment.

Treatment
CO2 enrichmente0
Outcome
seed starche0
Direction
increasede0
Value
8%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“On the other hand, seed protein content was decreased by 19% under CO2 enrichment while seed starch and soluble sugar contents were increased by 8% and 23%, respectively.”

✓ located verbatim in the source · abstract, characters 323–493 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

soluble sugar contents changed by 23% under CO2 enrichment.

Treatment
CO2 enrichmente0
Outcome
soluble sugar contentse0
Direction
increasede0
Value
23%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“On the other hand, seed protein content was decreased by 19% under CO2 enrichment while seed starch and soluble sugar contents were increased by 8% and 23%, respectively.”

✓ located verbatim in the source · abstract, characters 323–493 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fifty wheat leaf proteins were differentially expressed.

Organ / stage
leafe0
Outcome
proteins were showing differential expressione0
Value
50 proteinse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat leaf proteomics revealed that 50 proteins were showing differential expression.”

✓ located verbatim in the source · abstract, characters 494–579 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Twenty wheat leaf proteins were more abundant.

Outcome
proteins were more abundante0
Direction
more abundante0
Value
Twenty proteinse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Twenty proteins were more abundant while 30 were less abundant.”

✓ located verbatim in the source · abstract, characters 580–643 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Thirty wheat leaf proteins were less abundant.

Outcome
30 were less abundante0
Direction
less abundante0
Value
30e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Twenty proteins were more abundant while 30 were less abundant.”

✓ located verbatim in the source · abstract, characters 580–643 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Thirty two wheat leaf proteins were identified by MALDI TOF TOF.

Outcome
proteins were identifiede0
Value
Thirty two proteinse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Thirty two proteins were identified by MALDI TOF TOF.”

✓ located verbatim in the source · abstract, characters 644–697 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Wheat grain contained 49 differentially abundant proteins, 24 more abundant and 25 less abundant under elevated CO2.

Organ / stage
graine0
Outcome
differentially abundant proteinse0
Value
49 differentially abundant proteinse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat grain proteomics revealed that out of 49 differentially abundant proteins, 24 were more in abundance and 25 were less in abundance in wheat grains under eCO2 condition.”

✓ located verbatim in the source · abstract, characters 862–1036 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Thirty three wheat grain proteins were identified and functionally characterized.

Outcome
proteins were identified and functionally characterizede0
Value
Thirty three proteinse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Thirty three proteins were identified and functionally characterized.”

✓ located verbatim in the source · abstract, characters 1037–1106 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

High and low molecular weight glutenins were more abundant in elevated CO2 wheat seeds.

Treatment
eCO2e0
Outcome
high and low molecular weight gluteninse0
Direction
moree0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“both high and low molecular weight glutenins were more in eCO2 wheat seeds while there was no change in gliadin evels.”

✓ located verbatim in the source · abstract, characters 1292–1410 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Gliadin levels did not change in elevated CO2 wheat seeds.

Treatment
eCO2e0
Outcome
gliadin evelse0
Direction
no changee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“both high and low molecular weight glutenins were more in eCO2 wheat seeds while there was no change in gliadin evels.”

✓ located verbatim in the source · abstract, characters 1292–1410 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain Cr and As concentrations rose under elevated CO2.

Treatment
eCO2e0
Outcome
Concentration of grain Cr and Ase0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Concentration of grain Cr and As was increased at eCO2 while that of Fe, Cu, Zn and Se were found to be decreased.”

✓ located verbatim in the source · abstract, characters 1450–1564 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain Fe, Cu, Zn and Se concentrations declined under elevated CO2.

Treatment
eCO2e0
Outcome
Fe, Cu, Zn and See0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Concentration of grain Cr and As was increased at eCO2 while that of Fe, Cu, Zn and Se were found to be decreased.”

✓ located verbatim in the source · abstract, characters 1450–1564 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Soil microbial carbon utilization dynamics and metabolic abilities changed significantly under elevated CO2.

Treatment
eCO2e0
Outcome
carbon utilization and metabolic abilities of soil microbese0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Dynamics of carbon utilization and metabolic abilities of soil microbes under eCO2 were significantly altered.”

✓ located verbatim in the source · abstract, characters 1565–1675 · show in text ↑
t0

“Wheat Growth and Yield”

✓ located verbatim in the source · title, characters 37–59 · show in text ↑

co2 · quality: protein · Triticum aestivum (wheat)Results differ

32 papers: 3 positive, 29 negative or no effect

28 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

28 papers more in this group

See all 32 papers →

co2 · nutrient: content · Triticum aestivum (wheat)Results differ

63 papers: 23 positive, 40 negative or no effect

39 papers in the same direction as this paper · 23 in the opposite direction

  1. negative
  2. positive
  3. positive

59 papers more in this group

See all 63 papers →

co2 · physiology: osmolytes · Triticum aestivum (wheat)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive
See all 4 papers →

co2 · quality: sugar starch · Triticum aestivum (wheat)Positive and negative results

13 papers: 9 positive, 4 negative or no effect

8 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. negative
  3. negative

9 papers more in this group

See all 13 papers →

co2 · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results

40 papers: 23 positive, 17 negative or no effect

16 papers in the same direction as this paper · 23 in the opposite direction

  1. negative
  2. negative
  3. negative

36 papers more in this group

See all 40 papers →

co2 · yield · Triticum aestivum (wheat)Positive and negative results

203 papers: 174 positive, 29 negative or no effect

173 papers in the same direction as this paper · 29 in the opposite direction

  1. no effect
  2. no effect
  3. positive

199 papers more in this group

See all 203 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.