Paper · 2018 · Archives of Agronomy and Soil Science

Arbuscular mycorrhiza improves nitrogen use efficiency in soybean grown under partial root-zone drying irrigation

Hang Liu; Fengbin Song; Shengqun Liu; et al.

7
claims
16
verbatim quotes
25
citations
2
research areas
—
Not open access

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

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
e1

“Results showed that water stress significantly decreased plant dry weight”

✓ located verbatim in the source · abstract, characters 660–733 · show in text ↑
Intervention effectobservedoriginal resultmeasured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 735–881 · show in text ↑
Intervention effectobservedoriginal resultmeasured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 735–881 · show in text ↑
Intervention effectobservedoriginal resultmeasured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
e2

“AM colonization decreased C and N partitioning into stem and leaf, and increased C and N partitioning into root under PRD”

✓ located verbatim in the source · abstract, characters 883–1004 · show in text ↑
e3

“Arbuscular mycorrhizal (AM) fungi can form symbiotic association with the roots of plants”

✓ located verbatim in the source · abstract, characters 0–89 · show in text ↑
Intervention effectobservedoriginal resultmeasured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
e2

“AM colonization decreased C and N partitioning into stem and leaf, and increased C and N partitioning into root under PRD”

✓ located verbatim in the source · abstract, characters 883–1004 · show in text ↑
e3

“Arbuscular mycorrhizal (AM) fungi can form symbiotic association with the roots of plants”

✓ located verbatim in the source · abstract, characters 0–89 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
e4

“AM plants had greater C accumulation and N use efficiency than non-AM plants”

✓ located verbatim in the source · abstract, characters 1006–1082 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Glycine max L. grown under water stress in pot experiment”

✓ located verbatim in the source · abstract, characters 321–378 · show in text ↑
e5

“AM symbiosis plays an important role in C and N dynamics of soybean grown under water stress”

✓ located verbatim in the source · abstract, characters 1106–1198 · show in text ↑

drought · growth · Glycine max (soybean)Positive and negative results

211 papers: 41 positive, 170 negative or no effect

169 papers in the same direction as this paper · 41 in the opposite direction

  1. positive
  2. positive
  3. positive

207 papers more in this group

See all 211 papers →

mycorrhiza · nutrient: efficiency · Glycine max (soybean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.