Abstract
Soybean sudden death syndrome (SDS) pathogens and dry bean root-rot pathogens were studied taxonomically, phylogenetically, and pathologically. Detailed phenotypic comparisons of macro- and microscopic features and phylogenetic analyses of multilocus DNA sequence data, including those on the nuclear ribosomal intergenic spacer region and the single copy nuclear gene translation elongation factor 1-a, indicated that they comprised five distinct species of Fusarium. Two new species causing soybean SDS in Brazil, F. brasiliense and F. cuneirostrum, are formally described. Fusarium cuneirostrum is responsible for soybean SDS in Brazil and dry bean or mung bean root-rot in the United States, Canada, and Japan. Strains of each species, including F. cuneirostrum isolates from dry bean and mung bean and F. phaseoli isolates from dry bean, were inoculated on soybean cultivar Pioneer 9492RR to determine their pathogenicity. Although intraspecific variation in pathogenicity was observed, all the species were able to induce typical SDS symptoms on soybean plants in the artificial inoculation tests. Comparisons of the key diagnostic morphological features reveal that all five species can be diagnosed using conidial morphology.
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Claims 6
Claim · model-written summary
Phenotypic and sequence comparisons indicated five distinct Fusarium species associated with soybean SDS or dry bean root rot.
- Taxon
- soybean
Glycine maxt0 - Outcome
- five distinct species of Fusariume0
- Value
- fivee0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“they comprised five distinct species of Fusarium”
Claim · model-written summary
F. brasiliense was described as a new species causing soybean SDS in Brazil.
- Taxon
- soybeanGlycine maxt0
- Interactor
- F. brasilienseFusarium brasiliensee0pathogen
- Outcome
- causing soybean SDSe0
- Setting
- Brazile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Two new species causing soybean SDS in Brazil, F. brasiliense and F. cuneirostrum, are formally described”
Claim · model-written summary
F. cuneirostrum was described as a new species causing soybean SDS in Brazil.
- Taxon
- soybeanGlycine maxt0
- Interactor
- F. cuneirostrumFusarium cuneirostrume0pathogen
- Outcome
- causing soybean SDSe0
- Setting
- Brazile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Two new species causing soybean SDS in Brazil, F. brasiliense and F. cuneirostrum, are formally described”
Claim · model-written summary
Fusarium cuneirostrum caused soybean SDS in Brazil and dry bean or mung bean root rot in the United States, Canada, and Japan.
- Taxon
- soybeanGlycine maxt0
- Interactor
- Fusarium cuneirostrumFusarium cuneirostrume0pathogen
- Outcome
- soybean SDSe0
- Setting
- Brazile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Fusarium cuneirostrum is responsible for soybean SDS in Brazil and dry bean or mung bean root-rot in the United States, Canada, and Japan”
Claim · model-written summary
All tested Fusarium species induced typical SDS symptoms on inoculated soybean plants, with intraspecific variation.
- Taxon
- soybeanGlycine maxt0
- Material
- Pioneer 9492RRe1
- Treatment
- artificial inoculatione0
- Outcome
- typical SDS symptomse0
- Qualifier
- intraspecific variation in pathogenicitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Although intraspecific variation in pathogenicity was observed, all the species were able to induce typical SDS symptoms on soybean plants in the artificial inoculation tests”
e1“inoculated on soybean cultivar Pioneer 9492RR”
Claim · model-written summary
Conidial morphology distinguished all five Fusarium species.
- Taxon
- soybeanGlycine maxt0
- Outcome
- diagnosed using conidial morphologye0
- Value
- fivee0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“all five species can be diagnosed using conidial morphology”
The same questions in other papers
inoculation · survival · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- negative
- positive
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See all 8 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.