Abstract
Root pruning hinders the absorption and utilization of nutrients and water by seedlings in the short term. Arbuscular mycorrhizal fungi (AMF) are an important source of nutrient and water for seedlings except for the root system. However, the mechanism by which AMF affect the physiological growth of seedlings after root pruning has rarely been studied. In this study, a pot experiment was conducted through a three-compartment partition system to clarify the effects of Funneliformis mosseae (F. mosseae) strain BGC XJ07A on the physiological growth of root-pruned Robinia pseudoacacia seedlings. Five root pruning treatments (zero, one-fifth, one-fourth, one-third and one-half of the taproot length were removed) were applied to noninoculated seedlings and those inoculated with F. mosseae. The results showed that the presence of F. mosseae significantly increased the shoot and root biomasses, leaf photosynthetic rate, stomatal conductance and transpiration rate. The root projected area, root surface area, average root diameter, root density, root volume and number of root tips of the inoculated seedlings were higher than those without inoculation in all root pruning treatments. The root cytokinin, gibberellins and indole-3-acetic acid concentrations, but root abscisic acid concentration, were higher than those measured in the absence of inoculation in all root pruning treatments. Moreover, the changes in the root endogenous hormone concentrations of the seedlings were closely related to the root morphological development and seedling biomass. The AMF increased the soil available nitrogen, soil available phosphorus, soil available potassium and soil organic matter concentrations compared with the noninoculated treatment. These results indicate that AMF can alleviate the adverse effects of root pruning on the physiological growth of R. pseudoacacia and soil properties, and can provide a basis for AMF application to forest cultivation and the sustainable development of forest ecosystems.
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Claims 10
Claim · model-written summary
F. mosseae significantly increased shoot and root biomasses.
- Taxon
- Robinia pseudoacacia
Robinia pseudoacaciat0 - Treatment
- presence of F. mosseaee0
- Interactor
- F. mosseae
Funneliformis mosseaee0symbiont - Outcome
- shoot and root biomassese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the presence of F. mosseae significantly increased the shoot and root biomasses, leaf photosynthetic rate, stomatal conductance and transpiration rate.”
t0“Robinia pseudoacacia”
Claim · model-written summary
F. mosseae significantly increased leaf photosynthetic rate, stomatal conductance and transpiration rate.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- presence of F. mosseaee0
- Interactor
- F. mosseaeFunneliformis mosseaee0symbiont
- Outcome
- leaf photosynthetic rate, stomatal conductance and transpiration ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the presence of F. mosseae significantly increased the shoot and root biomasses, leaf photosynthetic rate, stomatal conductance and transpiration rate.”
t0“Robinia pseudoacacia”
Claim · model-written summary
Inoculated seedlings had higher root projected area, surface area and average diameter across all pruning treatments.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- inoculated seedlingse0
- Interactor
- F. mosseaeFunneliformis mosseaet1symbiont
- Outcome
- root projected area, root surface area, average root diametere0
- Direction
- highere0
- Qualifier
- all root pruning treatmentse0
- Comparator
- those without inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root projected area, root surface area, average root diameter, root density, root volume and number of root tips of the inoculated seedlings were higher than those without inoculation in all root pruning treatments.”
t0“Robinia pseudoacacia”
t1“Funneliformis mosseae (F. mosseae) strain BGC XJ07A”
Claim · model-written summary
Inoculated seedlings had higher root density, volume and root tip number across all pruning treatments.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- inoculated seedlingse0
- Outcome
- root density, root volume and number of root tipse0
- Direction
- highere0
- Qualifier
- all root pruning treatmentse0
- Comparator
- those without inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root projected area, root surface area, average root diameter, root density, root volume and number of root tips of the inoculated seedlings were higher than those without inoculation in all root pruning treatments.”
t0“Robinia pseudoacacia”
Claim · model-written summary
Inoculation raised root cytokinin, gibberellins and indole-3-acetic acid concentrations across all pruning treatments.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- inoculatione0
- Outcome
- root cytokinin, gibberellins and indole-3-acetic acid concentrationse0
- Direction
- highere0
- Qualifier
- all root pruning treatmentse0
- Comparator
- absence of inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root cytokinin, gibberellins and indole-3-acetic acid concentrations, but root abscisic acid concentration, were higher than those measured in the absence of inoculation in all root pruning treatments.”
t0“Robinia pseudoacacia”
Claim · model-written summary
Inoculation raised root abscisic acid concentration across all pruning treatments.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- inoculatione0
- Outcome
- root abscisic acid concentratione0
- Direction
- highere0
- Qualifier
- all root pruning treatmentse0
- Comparator
- absence of inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root cytokinin, gibberellins and indole-3-acetic acid concentrations, but root abscisic acid concentration, were higher than those measured in the absence of inoculation in all root pruning treatments.”
t0“Robinia pseudoacacia”
Claim · model-written summary
Root endogenous hormone concentrations were closely related to root morphological development and biomass.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Organ / stage
- roote0
- Outcome
- root morphological development and seedling biomasse0
- Qualifier
- changes in the root endogenous hormone concentrationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the changes in the root endogenous hormone concentrations of the seedlings were closely related to the root morphological development and seedling biomass.”
t0“Robinia pseudoacacia”
Claim · model-written summary
AMF increased soil available nitrogen, phosphorus and potassium concentrations.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- AMFe0
- Interactor
- AMFe0symbiont
- Outcome
- soil available nitrogen, soil available phosphorus, soil available potassiume0
- Direction
- increasede0
- Comparator
- noninoculated treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The AMF increased the soil available nitrogen, soil available phosphorus, soil available potassium and soil organic matter concentrations compared with the noninoculated treatment.”
t0“Robinia pseudoacacia”
Claim · model-written summary
AMF increased soil organic matter concentration.
- Taxon
- Robinia pseudoacaciaRobinia pseudoacaciat0
- Treatment
- AMFe0
- Interactor
- AMFe0symbiont
- Outcome
- soil organic matter concentrationse0
- Direction
- increasede0
- Comparator
- noninoculated treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The AMF increased the soil available nitrogen, soil available phosphorus, soil available potassium and soil organic matter concentrations compared with the noninoculated treatment.”
t0“Robinia pseudoacacia”
Claim · model-written summary
The authors concluded that AMF alleviates adverse root pruning effects on seedling growth and soil properties.
- Taxon
- R. pseudoacaciaRobinia pseudoacaciae0
- Interactor
- AMFe0symbiont
- Outcome
- alleviate the adverse effects of root pruning on the physiological growth of R. pseudoacacia and soil propertiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF can alleviate the adverse effects of root pruning on the physiological growth of R. pseudoacacia and soil properties”
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See all 11 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.