Abstract
In South Korea, a pythiaceous fungus was consistently isolated from the diseased tissues of field corn plants (Zea mays) showing severe rot of the roots and basal stalks. Based on the morphology, it was described as Pythiogeton zeae sp. nov., and a taxonomic key was constructed to differentiate it from the other known species of Pythiogeton. It is characterized by small to extremely large, ovoid, cylindrical, bursiform, ventricose, bilobulate, trilobulate to irregular saccate sporangia, large globose to ellipsoidal oogonium, plerotic oospore with thick wall and mostly single, diclinous or monoclinous antheridium. Its pathogenicity to corn plants was confirmed by artificial inoculation and successful re-isolation. This is the first documented report of a plant-pathogenic species of Pythiogeton, a genus known to be saprophytic usually on plant debris in freshwater.
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Claims 7
Claim · model-written summary
A pythiaceous fungus was consistently isolated from corn with severe root and basal stalk rot in South Korea.
- Interactor
- pythiaceous funguse0pathogen
- Outcome
- severe rot of the roots and basal stalkse0
- Setting
- South Koreae0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In South Korea, a pythiaceous fungus was consistently isolated from the diseased tissues of field corn plants (Zea mays) showing severe rot of the roots and basal stalks.”
Claim · model-written summary
The fungus was described as the new species Pythiogeton zeae on morphological evidence.
- Taxon
- Pythiogeton zeaePythiogeton zeaee0
- Outcome
- described as Pythiogeton zeae sp. nov.e0
Verbatim
e0“Based on the morphology, it was described as Pythiogeton zeae sp. nov.”
Claim · model-written summary
A taxonomic key differentiating Pythiogeton zeae from other Pythiogeton species was constructed.
- Taxon
- Pythiogeton zeaePythiogeton zeaee1
- Outcome
- a taxonomic keye0
- Comparator
- other known species of Pythiogetone0
Verbatim
e0“a taxonomic key was constructed to differentiate it from the other known species of Pythiogeton.”
e1“Pythiogeton zeae sp. nov.”
Claim · model-written summary
Pythiogeton zeae has diverse sporangial shapes and large globose to ellipsoidal oogonia.
- Taxon
- Pythiogeton zeaePythiogeton zeaee1
- Outcome
- small to extremely large, ovoid, cylindrical, bursiform, ventricose, bilobulate, trilobulate to irregular saccate sporangia, large globose to ellipsoidal oogoniume0
Verbatim
e0“small to extremely large, ovoid, cylindrical, bursiform, ventricose, bilobulate, trilobulate to irregular saccate sporangia, large globose to ellipsoidal oogonium”
e1“Pythiogeton zeae sp. nov.”
Claim · model-written summary
Pythiogeton zeae has thick-walled plerotic oospores and mostly single diclinous or monoclinous antheridia.
- Taxon
- Pythiogeton zeaePythiogeton zeaee1
- Outcome
- plerotic oospore with thick wall and mostly single, diclinous or monoclinous antheridiume0
Verbatim
e0“plerotic oospore with thick wall and mostly single, diclinous or monoclinous antheridium”
e1“Pythiogeton zeae sp. nov.”
Claim · model-written summary
Artificial inoculation and re-isolation confirmed Pythiogeton zeae pathogenicity to corn.
- Taxon
- corn
Zea mays subsp. mayse0 - Interactor
- Pythiogeton zeaePythiogeton zeaee1pathogen
- Outcome
- pathogenicity to corn plants was confirmede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Its pathogenicity to corn plants was confirmed by artificial inoculation and successful re-isolation.”
e1“Pythiogeton zeae sp. nov.”
Claim · model-written summary
This is the first documented plant-pathogenic species report in Pythiogeton.
- Taxon
- PythiogetonPythiogetone0
- Outcome
- first documented report of a plant-pathogenic speciese0
Verbatim
e0“This is the first documented report of a plant-pathogenic species of Pythiogeton”