Paper · 2016 · Journal of Plant Nutrition

AM fungi and rhizobium regulate nodule growth, phosphorous (P) uptake, and soluble sugar concentration of soybeans experiencing P deficiency

Xiaodong Ding; Shirong Zhang; Rongping Wang; et al.

10
claims
20
verbatim quotes
16
citations
2
research areas
—
Not open access

Abstract

To understand the mechanisms behind the beneficial combinations of the existence and formation processes of tripartite symbiosis of arbuscular mycorrhizal fungi (AMF) and nitrogen (N)-fixing rhizobia in phosphorus (P) deficiency. The effects of different inoculations of Bradyrhizobium japonicum (BJ) and Glomus mosseae (GM) on plant growth, P uptake, and soluble sugar concentration of soybeans in a P-deficient environment were investigated utilizing split-root systems supplemented with either KH2PO4 (0.01 mM, I-P) or Phytin (200 mg P kg−1, O-P) for 56 days. Six treatments were applied: (1) mono-inoculation of BJ in organic P compartment, O-BJ; (2) mono-inoculation of BJ in inorganic P compartment, I-BJ; (3) mono-inoculation of BJ in organic P compartment and mono-inoculation of GM in inorganic P compartment, O-BJ/I-GM; (4) mono-inoculation of BJ in inorganic P compartment and mono-inoculation of GM in organic P compartment, O-GM/I-BJ; (5) dual inoculation of BJ and GM in organic P compartment, O-BJ/GM; and (6) dual inoculation of BJ and GM in inorganic P compartment, I-BJ/GM. Compared with sole inoculation of BJ, dual inoculation increased the plant and nodule biomass, which were higher in I-BJ/GM and O-BJ/I-GM treatments compared to O-GM/I-BJ and O-BJ/GM treatments. Roots inoculated with GM in I-P grew better regardless of whether BJ was inoculated or not. GM inoculation in I-P also increased the number of leaves and the rate of photosynthesis. Nodule P concentration following dual inoculation in I-P was increased 2.1-fold compared to that in sole inoculation with BJ. Shoot soluble sugar concentration with dual inoculation in O-P was less than that in the other three treatments. Inoculated with GM in I-P increased the root soluble sugar concentration compared with the non-GM plants or GM inoculation in O-P. The present findings may explain a regulatory system for the nutrition of beneficial microbial interactions by the nodule or by AM fungal hyphae at selecting the best performing tripartite symbiotic partners in P deficiency.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dual inoculation increased soybean plant biomass relative to sole BJ inoculation.

Taxon
soybeansGlycine maxt0
Treatment
dual inoculatione0
Outcome
plant and nodule biomasse0
Direction
increasede0
Comparator
sole inoculation of BJe0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Compared with sole inoculation of BJ, dual inoculation increased the plant and nodule biomass”

✓ located verbatim in the source · abstract, characters 1092–1185 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dual inoculation increased soybean nodule biomass relative to sole BJ inoculation.

Taxon
soybeansGlycine maxt0
Treatment
dual inoculatione0
Outcome
nodule biomasse0
Direction
increasede0
Comparator
sole inoculation of BJe0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Compared with sole inoculation of BJ, dual inoculation increased the plant and nodule biomass”

✓ located verbatim in the source · abstract, characters 1092–1185 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biomass was higher under I-BJ/GM than O-GM/I-BJ and O-BJ/GM.

Taxon
soybeansGlycine maxt0
Treatment
I-BJ/GMe0
Outcome
plant and nodule biomasse0
Direction
highere0
Comparator
O-GM/I-BJ and O-BJ/GM treatmentse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Compared with sole inoculation of BJ, dual inoculation increased the plant and nodule biomass, which were higher in I-BJ/GM and O-BJ/I-GM treatments compared to O-GM/I-BJ and O-BJ/GM treatments”

✓ located verbatim in the source · abstract, characters 1092–1285 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biomass was higher under O-BJ/I-GM than O-GM/I-BJ and O-BJ/GM.

Taxon
soybeansGlycine maxt0
Treatment
O-BJ/I-GMe0
Outcome
plant and nodule biomasse0
Direction
highere0
Comparator
O-GM/I-BJ and O-BJ/GM treatmentse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Compared with sole inoculation of BJ, dual inoculation increased the plant and nodule biomass, which were higher in I-BJ/GM and O-BJ/I-GM treatments compared to O-GM/I-BJ and O-BJ/GM treatments”

✓ located verbatim in the source · abstract, characters 1092–1285 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Roots inoculated with GM in inorganic phosphorus grew better irrespective of BJ inoculation.

Taxon
soybeansGlycine maxt0
Treatment
GM in I-Pe0
Interactor
GMe0symbiont
Outcome
Rootse0
Direction
grew bettere0

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

“Roots inoculated with GM in I-P grew better regardless of whether BJ was inoculated or not.”

✓ located verbatim in the source · abstract, characters 1287–1378 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GM inoculation in inorganic phosphorus increased leaf number.

Taxon
soybeansGlycine maxt0
Treatment
GM inoculation in I-Pe0
Interactor
GMe0symbiont
Outcome
number of leavese0
Direction
increasede0

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

“GM inoculation in I-P also increased the number of leaves and the rate of photosynthesis.”

✓ located verbatim in the source · abstract, characters 1379–1468 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GM inoculation in inorganic phosphorus increased photosynthetic rate.

Taxon
soybeansGlycine maxt0
Treatment
GM inoculation in I-Pe0
Interactor
GMe0symbiont
Outcome
rate of photosynthesise0
Direction
increasede0

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

“GM inoculation in I-P also increased the number of leaves and the rate of photosynthesis.”

✓ located verbatim in the source · abstract, characters 1379–1468 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dual inoculation in inorganic phosphorus increased nodule phosphorus concentration 2.1-fold relative to BJ alone.

Taxon
soybeansGlycine maxt0
Treatment
dual inoculation in I-Pe0
Outcome
Nodule P concentratione0
Direction
increasede0
Value
2.1-folde0
Comparator
sole inoculation with BJe0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Nodule P concentration following dual inoculation in I-P was increased 2.1-fold compared to that in sole inoculation with BJ.”

✓ located verbatim in the source · abstract, characters 1469–1594 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dual inoculation in organic phosphorus lowered shoot soluble sugar concentration versus the other treatments.

Taxon
soybeansGlycine maxt0
Treatment
dual inoculation in O-Pe0
Outcome
Shoot soluble sugar concentratione0
Direction
less thane0
Comparator
the other three treatmentse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Shoot soluble sugar concentration with dual inoculation in O-P was less than that in the other three treatments.”

✓ located verbatim in the source · abstract, characters 1595–1707 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GM inoculation in inorganic phosphorus increased root soluble sugar relative to non-GM plants or GM inoculation in organic phosphorus.

Taxon
soybeansGlycine maxt0
Treatment
GM in I-Pe0
Interactor
GMe0symbiont
Outcome
root soluble sugar concentratione0
Direction
increasede0
Comparator
the non-GM plants or GM inoculation in O-Pe0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculated with GM in I-P increased the root soluble sugar concentration compared with the non-GM plants or GM inoculation in O-P.”

✓ located verbatim in the source · abstract, characters 1708–1838 · show in text ↑
t0

“soybeans”

✓ located verbatim in the source · title, characters 106–114 · show in text ↑

Funneliformis mosseae · physiology: osmolytes · 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 →

Funneliformis mosseae · physiology: photosynthesis · 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 →

Funneliformis mosseae · symbiosis · Glycine max (soybean)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

Funneliformis mosseae · growth · Glycine max (soybean)Results agree

15 papers: 15 positive, 0 negative or no effect

14 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

inoculation · physiology: photosynthesis · Glycine max (soybean)Positive and negative results

34 papers: 31 positive, 3 negative or no effect

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

  1. no effect
  2. no effect
  3. negative

30 papers more in this group

See all 34 papers →

inoculation · symbiosis · Glycine max (soybean)Positive and negative results

310 papers: 265 positive, 45 negative or no effect

264 papers in the same direction as this paper · 43 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

306 papers more in this group

See all 310 papers →

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

358 papers: 323 positive, 35 negative or no effect

322 papers in the same direction as this paper · 33 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

354 papers more in this group

See all 358 papers →

inoculation · physiology: osmolytes · Glycine max (soybean)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 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.