Abstract
Effects of bahiagrass (Paspalum notatum Flügge.) intercropping and arbuscular mycorrhizal fungi (AMF), Gigaspora margarita Becker and Hall, on the growth and activities of anti-oxidative enzymes (superoxide dismutase (SOD) and catalase (CAT)) in radish (Raphanus sativus L. ‘Midoribijin’), a non-host plant, was studied. Radish was grown with and without bahiagrass in a root box system divided into 5 compartments which allows AMF hyphae, but not roots, to enter between compartments. Pots without AMF inoculation were prepared as a control. G. margarita by itself had no significant effect on radish growth. Radish roots were colonized by G. margarita only when intercropped with bahiagrass; however, no arbuscule was observed and a lot of new spores were found on the radish root. Protein contents of radish roots were increased, but the plant biomass of radish, and the activities of SOD and CAT of roots were significantly decreased by AMF root colonization. These results suggest that the unavoidable invasion of hyphae into non-host plant roots due to intercropping with host plants, such as bahiagrass, that strongly promote AMF growth would result in the decline of non-host plants.
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Claims 8
Claim · model-written summary
Gigaspora margarita alone had no significant effect on radish growth.
- Taxon
- radish
Raphanus sativuse1 - Treatment
- G. margaritae0
- Interactor
- Gigaspora margarita
Gigaspora margaritae2symbiont - Outcome
- radish growthe0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. margarita by itself had no significant effect on radish growth”
e1“in radish (Raphanus sativus L. ‘Midoribijin’)”
e2“Gigaspora margarita Becker and Hall”
Claim · model-written summary
Gigaspora margarita colonized radish roots only with bahiagrass intercropping.
- Taxon
- RadishRaphanus sativuse0
- Organ / stage
- rootse0
- Interactor
- G. margaritaGigaspora margaritae0symbiont
- Second interactor
- bahiagrasse0other
- Outcome
- colonized by G. margaritae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Radish roots were colonized by G. margarita only when intercropped with bahiagrass”
e1“bahiagrass (Paspalum notatum Flügge.)”
Claim · model-written summary
No arbuscules were observed in colonized radish roots.
- Taxon
- RadishRaphanus sativuse1
- Organ / stage
- rootse1
- Interactor
- G. margaritaGigaspora margaritae1symbiont
- Outcome
- no arbuscule was observede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no arbuscule was observed”
e1“Radish roots were colonized by G. margarita only when intercropped with bahiagrass”
Claim · model-written summary
Many new Gigaspora spores were found on radish roots.
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- roote0
- Interactor
- G. margaritaGigaspora margaritae1symbiont
- Outcome
- a lot of new spores were found on the radish roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a lot of new spores were found on the radish root”
e1“Radish roots were colonized by G. margarita only when intercropped with bahiagrass”
Claim · model-written summary
AMF colonization increased radish root protein content.
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- rootse0
- Treatment
- AMF root colonizatione1
- Interactor
- AMFe1symbiont
- Outcome
- Protein contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein contents of radish roots were increased”
e1“by AMF root colonization”
Claim · model-written summary
AMF root colonization significantly decreased radish biomass.
- Taxon
- radishRaphanus sativuse0
- Treatment
- AMF root colonizatione0
- Interactor
- AMFe0symbiont
- Outcome
- plant biomass of radishe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plant biomass of radish, and the activities of SOD and CAT of roots were significantly decreased by AMF root colonization”
Claim · model-written summary
AMF root colonization significantly decreased radish root SOD and CAT activities.
- Taxon
- radishRaphanus sativuse1
- Organ / stage
- rootse0
- Treatment
- AMF root colonizatione0
- Interactor
- AMFe0symbiont
- Outcome
- activities of SOD and CAT of rootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of SOD and CAT of roots were significantly decreased by AMF root colonization”
e1“in radish (Raphanus sativus L. ‘Midoribijin’)”
Claim · model-written summary
The authors inferred that hyphal invasion during intercropping with AMF host plants could cause non-host radish decline.
- Taxon
- radishRaphanus sativuse1
- Interactor
- AMFe0symbiont
- Second interactor
- bahiagrasse0other
- Outcome
- decline of non-host plantse0
- Qualifier
- unavoidable invasion of hyphae into non-host plant rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“unavoidable invasion of hyphae into non-host plant roots due to intercropping with host plants, such as bahiagrass, that strongly promote AMF growth would result in the decline of non-host plants”
e1“in radish (Raphanus sativus L. ‘Midoribijin’)”
The same questions in other papers
mycorrhiza · growth · Raphanus sativus (radish)Positive and negative results
1 in the opposite direction
- positive
infection · growth · Raphanus sativus (radish)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.