Abstract
Arbuscular mycorrhizal fungi (AMF) help in promoting plant growth and mediating key belowground processes, however, AMF responses to the continuous increase in the atmospheric carbon dioxide (CO2) is yet elusive. This has led to considerable interest in the impacts elevated CO2 on AMF and belowground processes in recent years. The present study investigated the effect of elevated CO2 on AMF sporulation and root colonization and soil microbial properties in the rhizosphere of soybean. The pot experiment consisted of two levels of CO2 (ambient; 350 ppm and elevated; 550 ppm) and three soybean cultivars (TGx 1440-1E, TGx 1448-2F and TGx 1480-2F) conducted in open top chambers, laid out in randomized complete block design, replicated thrice. The results showed that elevated CO2 increased the AMF spore density and root colonization of the soybean cultivars. Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2 . These could have resulted in increased plant biomass, pod number, 100-seed weight and seed yield under elevated CO2 . From the results of this study, increased atmospheric CO2 regulates AMF activities, microbial properties and improve soybean performance. Thus, this study may help to a better understanding of the responses of AMF and belowground process with increasing atmospheric CO2.
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
Elevated CO2 increased AMF spore density and root colonization of soybean cultivars compared with ambient CO2.
- Taxon
- soybean
Glycine maxe1 - Treatment
- elevated CO2e1
- Interactor
- AMFe1symbiont
- Outcome
- AMF spore density and root colonizatione1
- Direction
- increasede1
- Comparator
- ambient CO2e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The results showed that elevated CO2 increased the AMF spore density and root colonization of the soybean cultivars”
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
Claim · model-written summary
Elevated CO2 increased rhizosphere microbial biomass carbon of soybean by 34.2–45.4%.
- Taxon
- soybeanGlycine maxe2
- Treatment
- Elevated CO2e2
- Outcome
- microbial biomass carbone2
- Direction
- increasede2
- Value
- 34.2–45.4%e2
- Comparator
- ambient CO2e2
- Setting
- rhizospheree2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
Claim · model-written summary
Elevated CO2 increased rhizosphere microbial biomass nitrogen of soybean by 44.6–54.9%.
- Taxon
- soybeanGlycine maxe2
- Treatment
- Elevated CO2e2
- Outcome
- microbial biomass nitrogene2
- Direction
- increasede2
- Value
- 44.6–54.9%e2
- Comparator
- ambient CO2e2
- Setting
- rhizospheree2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
Claim · model-written summary
Elevated CO2 increased soil nitrogen in the soybean rhizosphere by 30.3–50.6%.
- Taxon
- soybeanGlycine maxe2
- Treatment
- Elevated CO2e2
- Outcome
- soil nitrogene2
- Direction
- increasede2
- Value
- 30.3–50.6%e2
- Comparator
- ambient CO2e2
- Setting
- rhizospheree2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
Claim · model-written summary
Elevated CO2 increased available phosphorus in the soybean rhizosphere by 20.8–45.7%.
- Taxon
- soybeanGlycine maxe2
- Treatment
- Elevated CO2e2
- Outcome
- available phosphoruse2
- Direction
- increasede2
- Value
- 20.8–45.7%e2
- Comparator
- ambient CO2e2
- Setting
- rhizospheree2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
Claim · model-written summary
Elevated CO2 may increase soybean plant biomass, pod number and 100-seed weight.
- Taxon
- soybeanGlycine maxe2
- Treatment
- elevated CO2e5
- Outcome
- plant biomass, pod number, 100-seed weighte5
- Direction
- increasede5
- Comparator
- ambient CO2e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
e5“These could have resulted in increased plant biomass, pod number, 100-seed weight and seed yield under elevated CO2”
Claim · model-written summary
Elevated CO2 may increase soybean seed yield.
- Taxon
- soybeanGlycine maxe2
- Treatment
- elevated CO2e5
- Outcome
- seed yielde5
- Direction
- increasede5
- Comparator
- ambient CO2e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Elevated CO2 increased the microbial biomass carbon (34.2–45.4%), microbial biomass nitrogen (44.6–54.9%), soil nitrogen (30.3–50.6%), available phosphorus (20.8–45.7%) in the rhizosphere of the soybean cultivars compared to the ambient CO2”
e5“These could have resulted in increased plant biomass, pod number, 100-seed weight and seed yield under elevated CO2”
The same questions in other papers
co2 · soil: chemistry · Glycine max (soybean)Positive and negative results
1 in the opposite direction
- negative
co2 · disease · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
6 papers more in this group
See all 10 papers →co2 · yield · Glycine max (soybean)Positive and negative results
85 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- negative
- no effect
92 papers more in this group
See all 96 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.