Abstract
Exobasidium setsutaiense sp. nov. is proposed to accommodate the causal agent of leaf blister on Rhododendron semibarbatum. After the examination of the herbarium materials (IUM) and newly collected fresh materials, the symptom on R. semibarbatum was clearly different from those on Rhododendron arboreum, the host of Exobasidium butleri. Morphology of basidiospores was slightly curved towards a hilum with 3–4 septa, whereas the number of septa in basidiospores of E. butleri was 0–1. The mode of germination of basidiospores was by a germ tube or by budding. The leaf blister was characterized by chlorotic leaf spot where the lesion was slightly thickened by the hyperplasia of spongy mesophyll cells. Molecular analyses of the concatenated ITS + LSU sequences supported the independence of E. setsutaiense.
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Claims 3
Claim · model-written summary
Exobasidium setsutaiense was proposed as the agent of leaf blister on Rhododendron semibarbatum.
- Taxon
- Rhododendron semibarbatum
Rhododendron semibarbatume0 - Interactor
- Exobasidium setsutaienseExobasidium setsutaiensee0pathogen
- Outcome
- leaf blistere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exobasidium setsutaiense sp. nov. is proposed to accommodate the causal agent of leaf blister on Rhododendron semibarbatum”
Claim · model-written summary
Symptoms on R. semibarbatum differed from symptoms on Rhododendron arboreum.
- Taxon
- R. semibarbatumRhododendron semibarbatume0
- Outcome
- symptome0
- Direction
- differente0
- Comparator
- Rhododendron arboreume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the symptom on R. semibarbatum was clearly different from those on Rhododendron arboreum”
Claim · model-written summary
The leaf blister presented chlorotic spots and thickened lesions caused by spongy mesophyll hyperplasia.
- Taxon
- Rhododendron semibarbatumRhododendron semibarbatumt0
- Organ / stage
- spongy mesophyll cellse0
- Interactor
- Exobasidium setsutaienseExobasidium setsutaienset0pathogen
- Outcome
- chlorotic leaf spote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf blister was characterized by chlorotic leaf spot where the lesion was slightly thickened by the hyperplasia of spongy mesophyll cells”
t0“Exobasidium setsutaiense sp. nov. (Exobasidiaceae) causing leaf blister on Rhododendron semibarbatum in Japan”