Abstract
Elevating CO 2 (eCO 2 ) levels will change behavior and the effect of soil fertilizers and nutrients. Selenium NPs (SeNPs) have arisen as an alternative to conventional Se fertilizers to enrich crops. However, it remains unclear whether eCO 2 will change the biological effects of soil SeNPs on plant growth and metabolism. The current study aimed to shed new light on the interactive impacts of eCO 2 and SeNPs on wheat plants. Accordingly, the attempts were to reveal whether the application of SeNPs can modulate the eCO 2 effects on wheat ( Triticum aestivum L.) physiological and biochemical traits. With this goal, a pot experiment was carried out where the seeds were primed with SeNPs and plants were grown under two levels of CO 2 concentrations (ambient CO 2 (aCO 2 , 410 μmol CO 2 mol −1 ; and eCO 2 (710 μmol CO 2 mol −1 )) during six weeks after sowing. Although SeNPs+eCO 2 treatment resulted in the highest accumulation of photosynthetic pigment content in leaves (+49-118% higher than control), strong evidence of the positive impacts on Rubisco activity (~+23%), and stomatal conductance (~+37%) was observed only under eCO 2 , which resulted in an improvement in photosynthesis capacity (+42%). When photosynthesis parameters were stimulated with eCO 2 , a significant improvement in dry matter production was detected, in particular under SeNPs+eCO 2 which was 1.8 times higher than control under aCO 2 . The highest content of antioxidant enzymes, molecules, and metabolites was also recorded in SeNPs+eCO 2 , which might be associated with the nearly 50% increase in sodium content in shoots at the same treatment. Taken together, this is the first research documenting the effective synergistic impacts of eCO 2 and SeNPs on the mentioned metabolites, antioxidants, and some photosynthetic parameters, an advantageous consequence that was not recorded in the individual application of these treatments, at least not as broadly as with the combined treatment.
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 7
Claim · model-written summary
Combined SeNP and elevated CO2 treatment gave the highest leaf pigment accumulation, 49–118% above control.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- SeNPs+eCO 2 treatmente0
- Outcome
- photosynthetic pigment content in leavese0
- Direction
- highere0
- Value
- +49-118%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SeNPs+eCO 2 treatment resulted in the highest accumulation of photosynthetic pigment content in leaves (+49-118% higher than control)”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Elevated CO2 raised Rubisco activity by about 23%.
- Taxon
- wheatTriticum aestivume1
- Treatment
- eCO 2e0
- Outcome
- Rubisco activitye0
- Value
- ~+23%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“positive impacts on Rubisco activity (~+23%), and stomatal conductance (~+37%) was observed only under eCO 2”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Elevated CO2 raised stomatal conductance by about 37%.
- Taxon
- wheatTriticum aestivume1
- Treatment
- eCO 2e0
- Outcome
- stomatal conductancee0
- Value
- ~+37%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal conductance (~+37%) was observed only under eCO 2”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Elevated CO2 improved photosynthesis capacity by 42%.
- Taxon
- wheatTriticum aestivume1
- Treatment
- eCO 2e0
- Outcome
- photosynthesis capacitye0
- Direction
- improvemente0
- Value
- +42%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only under eCO 2 , which resulted in an improvement in photosynthesis capacity (+42%)”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Combined treatment increased dry matter to 1.8 times ambient CO2 control.
- Taxon
- wheatTriticum aestivume1
- Treatment
- SeNPs+eCO 2e0
- Outcome
- dry matter productione0
- Direction
- highere0
- Value
- 1.8 timese0
- Comparator
- control under aCO 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant improvement in dry matter production was detected, in particular under SeNPs+eCO 2 which was 1.8 times higher than control under aCO 2”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Combined treatment gave the highest antioxidant enzyme, molecule and metabolite content.
- Taxon
- wheatTriticum aestivume1
- Treatment
- SeNPs+eCO 2e0
- Outcome
- content of antioxidant enzymes, molecules, and metabolitese0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest content of antioxidant enzymes, molecules, and metabolites was also recorded in SeNPs+eCO 2”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Shoot sodium content increased nearly 50% with combined treatment.
- Taxon
- wheatTriticum aestivume2
- Treatment
- SeNPs+eCO 2e1
- Outcome
- sodium content in shootse0
- Direction
- increasee0
- Value
- nearly 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nearly 50% increase in sodium content in shoots at the same treatment”
e1“recorded in SeNPs+eCO 2”
e2“wheat ( Triticum aestivum L.)”
The same questions in other papers
selenium atom · physiology: photosynthesis · Triticum aestivum (wheat)Results differ
13 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
11 papers more in this group
See all 15 papers →selenium atom · yield · Triticum aestivum (wheat)Results differ
24 papers in the same direction as this paper · 12 in the opposite direction
- positive
- no effect
- no effect
33 papers more in this group
See all 37 papers →selenium atom · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results
11 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
9 papers more in this group
See all 13 papers →co2 · physiology: antioxidant enzymes · Triticum aestivum (wheat)Results differ
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →co2 · physiology: gas exchange · Triticum aestivum (wheat)Positive and negative results
13 papers in the same direction as this paper · 14 in the opposite direction
- no effect
- negative
- no effect
24 papers more in this group
See all 28 papers →nanoparticle · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results
30 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
28 papers more in this group
See all 32 papers →nanoparticle · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results
35 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- negative
38 papers more in this group
See all 42 papers →co2 · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results
68 papers in the same direction as this paper · 28 in the opposite direction
- positive
- negative
- negative
93 papers more in this group
See all 97 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.