Abstract
Six species of vesicular–arbuscular (VA) mycorrhizal fungi, each at 500 spores per kilogram of pasteurized soil, were compared for spore germination, hyphal root penetration, and root colonization on soybean in a repeated greenhouse experiment. Generally, the six species were categorized into two groups. Those species in group I (Glomus mosseae, Gl. intraradices, and Gigaspora heterogama) had higher spore germination, root penetration, percentage root colonization values, and fungal growth rates in the roots than those species in group II (Gl. etunicatum, Gi. margarita, and Entrophospora sp.). However, when we calculated the fungal growth rate (centimetres per day) per penetration point or used Smith and Walker's equation, the highest values were assigned to group II. Fungal growth rate per penetration point was inversely proportional to the number of penetration points, indicating growth "interference" among hyphae originating from different penetration points in the root. The number of penetration points was correlated significantly with root length but not with percentage of root colonization. Dry root weight was significantly correlated with length of colonized roots in both experiments, while shoot weight was correlated with colonized root length in only one of the two experiments. Glomus mosseae was the only species which induced a significant increase both in dry shoot weight and numbers of Rhizobium nodules as compared with those for nonmycorrhizal plants.
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Claims 10
Claim · model-written summary
Those species in group I (Glomus mosseae, Gl. intraradices, and Gigaspora heterogama) had higher spore germination, root penetration, percentage root colonization values, and fungal growth rates in the roots than those species in group II (Gl. etunicatum, Gi. margarita, and Entrophospora sp.).
- Taxon
- soybean
Glycine maxt0 - Outcome
- spore germination, root penetration, percentage root colonization valuese0
- Direction
- highere0
- Comparator
- group IIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Those species in group I (Glomus mosseae, Gl. intraradices, and Gigaspora heterogama) had higher spore germination, root penetration, percentage root colonization values, and fungal growth rates in the roots than those species in group II (Gl. etunicatum, Gi. margarita, and Entrophospora sp.).”
t0“on soybean”
Claim · model-written summary
Those species in group I (Glomus mosseae, Gl. intraradices, and Gigaspora heterogama) had higher spore germination, root penetration, percentage root colonization values, and fungal growth rates in the roots than those species in group II (Gl. etunicatum, Gi. margarita, and Entrophospora sp.).
- Taxon
- soybeanGlycine maxt0
- Outcome
- fungal growth rates in the rootse0
- Direction
- highere0
- Comparator
- group IIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Those species in group I (Glomus mosseae, Gl. intraradices, and Gigaspora heterogama) had higher spore germination, root penetration, percentage root colonization values, and fungal growth rates in the roots than those species in group II (Gl. etunicatum, Gi. margarita, and Entrophospora sp.).”
t0“on soybean”
Claim · model-written summary
However, when we calculated the fungal growth rate (centimetres per day) per penetration point or used Smith and Walker's equation, the highest values were assigned to group II.
- Taxon
- soybeanGlycine maxt0
- Material
- group IIe0
- Outcome
- fungal growth ratee0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, when we calculated the fungal growth rate (centimetres per day) per penetration point or used Smith and Walker's equation, the highest values were assigned to group II.”
t0“on soybean”
Claim · model-written summary
Fungal growth rate per penetration point was inversely proportional to the number of penetration points, indicating growth "interference" among hyphae originating from different penetration points in the root.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- roote0
- Outcome
- Fungal growth rate per penetration pointe0
- Direction
- inversely proportionale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungal growth rate per penetration point was inversely proportional to the number of penetration points, indicating growth "interference" among hyphae originating from different penetration points in the root.”
t0“on soybean”
Claim · model-written summary
The number of penetration points was correlated significantly with root length but not with percentage of root colonization.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- root lengthe0
- Outcome
- number of penetration pointse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of penetration points was correlated significantly with root length but not with percentage of root colonization.”
t0“on soybean”
Claim · model-written summary
The number of penetration points was correlated significantly with root length but not with percentage of root colonization.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- root colonizatione0
- Outcome
- number of penetration pointse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of penetration points was correlated significantly with root length but not with percentage of root colonization.”
t0“on soybean”
Claim · model-written summary
Dry root weight was significantly correlated with length of colonized roots in both experiments, while shoot weight was correlated with colonized root length in only one of the two experiments.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- colonized rootse0
- Outcome
- Dry root weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry root weight was significantly correlated with length of colonized roots in both experiments, while shoot weight was correlated with colonized root length in only one of the two experiments.”
t0“on soybean”
Claim · model-written summary
Dry root weight was significantly correlated with length of colonized roots in both experiments, while shoot weight was correlated with colonized root length in only one of the two experiments.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- colonized roote0
- Outcome
- shoot weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry root weight was significantly correlated with length of colonized roots in both experiments, while shoot weight was correlated with colonized root length in only one of the two experiments.”
t0“on soybean”
Claim · model-written summary
Glomus mosseae was the only species which induced a significant increase both in dry shoot weight and numbers of Rhizobium nodules as compared with those for nonmycorrhizal plants.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Glomus mosseaee0
- Interactor
- Glomus mosseae
Funneliformis mosseaee0symbiont - Outcome
- dry shoot weighte0
- Direction
- increasee0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glomus mosseae was the only species which induced a significant increase both in dry shoot weight and numbers of Rhizobium nodules as compared with those for nonmycorrhizal plants.”
t0“on soybean”
Claim · model-written summary
Glomus mosseae was the only species which induced a significant increase both in dry shoot weight and numbers of Rhizobium nodules as compared with those for nonmycorrhizal plants.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Glomus mosseaee0
- Second interactor
- Glomus mosseaeFunneliformis mosseaee0symbiont
- Outcome
- numbers of Rhizobium nodulese0
- Direction
- increasee0
- Comparator
- nonmycorrhizal plantse0
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glomus mosseae was the only species which induced a significant increase both in dry shoot weight and numbers of Rhizobium nodules as compared with those for nonmycorrhizal plants.”
t0“on soybean”
The same questions in other papers
Funneliformis mosseae · growth · Glycine max (soybean)Results agree
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See all 15 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.