Claim · model-written summary
This is the first report of Coniella quercicola on Acer palmatum in Korea.
- Taxon
- A. palmatum
Acer palmatume0 - Interactor
- Coniella quercicolaConiella quercicolat0pathogen
- Outcome
- first report of this speciese0
- Setting
- Koreae0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this represents the first report of this species on A. palmatum in Korea”
t0“Coniella quercicola”
Title
First Report of Coniella quercicola Causing Leaf Spot on Palmate Maple ( Acer palmatum ) in Korea
Jiwon Kim; Sang-Tae Seo; Ki Hyeong Park Plant Disease 2026. doi:10.1094/pdis-12-25-2581-pdn
Other claims from this paper (10)
- Observation Leaf spots and blights were observed on several maple trees in Cheonan, Korea.
- Observation Initial symptoms were irregular brown spots that later expanded into grayish-brown blighted areas.
- Observation The fungal conidia measured 9.4-18.2 x 1.2-4.1 um (n = 38), consistent with Coniella quercicola.
- Observation ITS and LSU sequences of the isolates showed 100% identity to Coniella quercicola in BLAST searches.
- Observation TEF1-alpha of isolate S10 showed 98.33% identity to Coniella quercicola.
- Observation TEF1-alpha of isolate HM3 showed 98.42% identity to Coniella quercicola.
- Observation In a maximum-likelihood tree of concatenated ITS, LSU and TEF1-alpha sequences, the isolates clustered with Coniella quercicola strains.
- Intervention effect Leaves of A. palmatum inoculated with the conidial suspension developed typical lesions, whereas control leaves remained symptomless.
- Observation The pathogen was re-isolated from symptomatic tissue and identified as C. quercicola, fulfilling Koch postulates.
- Recommendation Occurrence of the pathogen on ornamental Acer trees suggests a potential risk to landscape and forest ecosystems and a need for continued monitoring and management.