Abstract
Arbuscular mycorrhizal fungi (AMF) symbiosis can enhance plant growth in unfavorable conditions. However, functional variations among different AMF species for their ability to enhance phosphorus (P) uptake and soybean tolerance in lead (Pb) contaminated soil have rarely been examined. The present study therefore aimed to compare the growth, P uptake and Pb tolerance of soybean plants colonized by different AMF and to test the relationship between P uptake efficiency and Pb uptake in Pb contaminated soil. Soybean inoculated with three different AMF, Funneliformis mosseae, Claroideoglomus etunicatum, and Rhizophagus intraradices and control was grown under three Pb addition levels (0, 100 and 300 mg kg−1) in a pot experiment. The results showed that AMF inoculation significantly promoted the plant growth, P uptake and Pb accumulation in the roots, with less translocation of Pb from roots to the shoots compared to non-inoculated plants. Soybean plants inoculated with R. intraradices were more tolerant to Pb toxicity compared with other two AMF species in terms of higher root colonization, biomass, P uptake and seed yield. Significant linear correlations were observed between biomass, P uptake and Pb uptake of the plant. The findings in this study are essential in using AMF to promote soybean growth and P uptake in heavy metal-contaminated soils. Moreover, symbiotic P uptake and retention of Pb in roots of plants could serve as important criteria for screening of efficient AMF species or isolates for plant growth, P nutrition and metal tolerance in heavy metal contaminated soils.
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Claims 8
Claim · model-written summary
AMF inoculation promoted soybean growth and P uptake versus non-inoculated plants.
- Taxon
- soybean
Glycine maxt0 - Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- plant growth, P uptakee0
- Direction
- promotede0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation significantly promoted the plant growth, P uptake and Pb accumulation in the roots, with less translocation of Pb from roots to the shoots compared to non-inoculated plants”
t0“soybean”
Claim · model-written summary
AMF inoculation increased Pb accumulation in soybean roots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- Pb accumulation in the rootse0
- Direction
- promotede0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation significantly promoted the plant growth, P uptake and Pb accumulation in the roots, with less translocation of Pb from roots to the shoots compared to non-inoculated plants”
t0“soybean”
Claim · model-written summary
AMF inoculation reduced Pb translocation from soybean roots to shoots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- translocation of Pb from roots to the shootse0
- Direction
- lesse0
- Comparator
- non-inoculated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation significantly promoted the plant growth, P uptake and Pb accumulation in the roots, with less translocation of Pb from roots to the shoots compared to non-inoculated plants”
t0“soybean”
Claim · model-written summary
R. intraradices inoculation gave soybean greater Pb tolerance than the other two AMF species.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- inoculated with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- tolerant to Pb toxicitye0
- Direction
- moree0
- Comparator
- other two AMF speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean plants inoculated with R. intraradices were more tolerant to Pb toxicity compared with other two AMF species in terms of higher root colonization, biomass, P uptake and seed yield”
Claim · model-written summary
R. intraradices inoculation gave higher root colonization, biomass and P uptake than the other two AMF species.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- inoculated with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- root colonization, biomass, P uptakee0
- Direction
- highere0
- Comparator
- other two AMF speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean plants inoculated with R. intraradices were more tolerant to Pb toxicity compared with other two AMF species in terms of higher root colonization, biomass, P uptake and seed yield”
Claim · model-written summary
R. intraradices inoculation gave higher soybean seed yield than the other two AMF species.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- inoculated with R. intraradicese0
- Interactor
- R. intraradicesRhizophagus intraradicese0symbiont
- Outcome
- seed yielde0
- Direction
- highere0
- Comparator
- other two AMF speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean plants inoculated with R. intraradices were more tolerant to Pb toxicity compared with other two AMF species in terms of higher root colonization, biomass, P uptake and seed yield”
Claim · model-written summary
Soybean biomass, P uptake and Pb uptake had significant linear correlations.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- plante0
- Outcome
- biomass, P uptake and Pb uptakee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant linear correlations were observed between biomass, P uptake and Pb uptake of the plant”
t0“soybean”
Claim · model-written summary
Symbiotic P uptake and root Pb retention were proposed as screening criteria for efficient AMF.
- Taxon
- soybeanGlycine maxt0
- Interactor
- AMFe0symbiont
- Outcome
- criteria for screening of efficient AMF species or isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“symbiotic P uptake and retention of Pb in roots of plants could serve as important criteria for screening of efficient AMF species or isolates”
t0“soybean”
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