Claim · model-written summary
The authors report Alternaria alternata causing Catalpa bungei leaf spots in China for the first time.
- Taxon
- Catalpa bungei
Catalpa bungeit0 - Interactor
- A. alternata
Alternaria alternatae0pathogen - Outcome
- first report of A. alternata causing leaf spots on C. bungeie0
- Setting
- Chinae0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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Verbatim
e0“This is the first report of A. alternata causing leaf spots on C. bungei in China”
t0“Alternaria alternata Causing Leaf Spot on Catalpa bungei”
Title
First Report of Alternaria alternata Causing Leaf Spot on Catalpa bungei in China
Shuchang Chen; Enping Zhou; Fei Dong; et al. Plant Disease 2024. doi:10.1094/pdis-01-24-0091-pdn
Other claims from this paper (7)
- Observation Catalpa bungei leaf disease incidence reached 54% at the surveyed farm in Nanyang.
- Observation Leaf spot on Catalpa bungei began as irregular yellowish-brown round spots and later developed dark lesion edges and yellowing.
- Observation Twenty diseased Catalpa bungei leaves yielded 29 phenotypically similar purified fungal strains.
- Observation Three fungal strains from Catalpa bungei leaf spots clustered with Alternaria alternata strain CBS 121456.
- Observation Morphology and molecular analysis identified the Catalpa bungei leaf spot isolates as Alternaria alternata.
- Intervention effect Inoculation with the three Alternaria alternata isolates caused natural-looking lesions on Catalpa bungei seedlings after four days, while water controls showed no symptoms.
- Observation The inoculated Catalpa bungei seedlings yielded reisolated cultures identical to the original strains.