Abstract
Arbuscular mycorrhizal (AM) fungi can form symbiotic association with the roots of plants that acquire carbon (C) exclusively from the host plants and supply nitrogen (N) to the plants. In this study, our objective was to investigate the effects of the AM fungus on plant growth, C and N partitioning and accumulation of Glycine max L. grown under water stress in pot experiment. Soybean seedlings were inoculated or not inoculated with the AM fungus, and were exposed to three irrigation treatments including full irrigation, deficit irrigation and partial root-zone drying irrigation (PRD). The 15N isotope labeling was used to trace soybean N accumulation. Results showed that water stress significantly decreased plant dry weight. Compared with non-AM fungus, AM fungus increased root N and 15N concentration, and decreased stem, leaf and pod N and 15N concentrations under PRD. AM colonization decreased C and N partitioning into stem and leaf, and increased C and N partitioning into root under PRD. AM plants had greater C accumulation and N use efficiency than non-AM plants. It was concluded that AM symbiosis plays an important role in C and N dynamics of soybean grown under water stress.
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Claims 7
Claim · model-written summary
Water stress significantly decreased soybean plant dry weight.
- Taxon
- Glycine max L.
Glycine maxe0 - Treatment
- water stresse0
- Outcome
- plant dry weighte1
- Direction
- decreasede1
- Setting
- pot experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e1“Results showed that water stress significantly decreased plant dry weight”
Claim · model-written summary
Compared with non-AM fungus, AM fungus increased root N and 15N concentration under PRD.
- Taxon
- Glycine max L.Glycine maxe0
- Treatment
- AM funguse1
- Interactor
- AM funguse1symbiont
- Outcome
- root N and 15N concentratione1
- Direction
- increasede1
- Qualifier
- under PRDe1
- Comparator
- non-AM funguse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e1“Compared with non-AM fungus, AM fungus increased root N and 15N concentration, and decreased stem, leaf and pod N and 15N concentrations under PRD”
Claim · model-written summary
Compared with non-AM fungus, AM fungus decreased stem, leaf and pod N and 15N concentrations under PRD.
- Taxon
- Glycine max L.Glycine maxe0
- Treatment
- AM funguse1
- Interactor
- AM funguse1symbiont
- Outcome
- stem, leaf and pod N and 15N concentrationse1
- Direction
- decreasede1
- Qualifier
- under PRDe1
- Comparator
- non-AM funguse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e1“Compared with non-AM fungus, AM fungus increased root N and 15N concentration, and decreased stem, leaf and pod N and 15N concentrations under PRD”
Claim · model-written summary
AM colonization decreased C and N partitioning into stem and leaf under PRD.
- Taxon
- Glycine max L.Glycine maxe0
- Treatment
- AM colonizatione2
- Interactor
- Arbuscular mycorrhizal (AM) fungie3symbiont
- Outcome
- C and N partitioning into stem and leafe2
- Direction
- decreasede2
- Qualifier
- under PRDe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e2“AM colonization decreased C and N partitioning into stem and leaf, and increased C and N partitioning into root under PRD”
e3“Arbuscular mycorrhizal (AM) fungi can form symbiotic association with the roots of plants”
Claim · model-written summary
AM colonization increased C and N partitioning into root under PRD.
- Taxon
- Glycine max L.Glycine maxe0
- Treatment
- AM colonizatione2
- Interactor
- Arbuscular mycorrhizal (AM) fungie3symbiont
- Outcome
- C and N partitioning into roote2
- Direction
- increasede2
- Qualifier
- under PRDe2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e2“AM colonization decreased C and N partitioning into stem and leaf, and increased C and N partitioning into root under PRD”
e3“Arbuscular mycorrhizal (AM) fungi can form symbiotic association with the roots of plants”
Claim · model-written summary
AM plants had greater C accumulation and N use efficiency than non-AM plants.
- Taxon
- Glycine max L.Glycine maxe0
- Treatment
- AM plantse4
- Outcome
- C accumulation and N use efficiencye4
- Direction
- greatere4
- Comparator
- non-AM plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e4“AM plants had greater C accumulation and N use efficiency than non-AM plants”
Claim · model-written summary
AM symbiosis plays an important role in C and N dynamics of soybean grown under water stress.
- Taxon
- soybeanGlycine maxe5
- Outcome
- C and N dynamicse5
- Qualifier
- under water stresse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glycine max L. grown under water stress in pot experiment”
e5“AM symbiosis plays an important role in C and N dynamics of soybean grown under water stress”
The same questions in other papers
drought · growth · Glycine max (soybean)Positive and negative results
169 papers in the same direction as this paper · 41 in the opposite direction
- positive
- positive
- positive
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See all 211 papers →mycorrhiza · nutrient: efficiency · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- 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.