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Stemphylium platycodontis sp. nov., isolated from Platycodon grandiflorus in Korea

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Abstract

A new species of Stemphylium causing leaf and flower blight of Platycodon grandiflorus in Korea was determined on the basis of phylogenetic analysis and morphology. Phylogenetic analyses of internal transcribed spacer (ITS), glyceraldehyde-3-phosphate dehydrogenase (gpd), translation elongation factor 1 alpha (EF-1α) and a combined dataset revealed that the fungus placed in a subclade distinct from the closely related Stemphylium species (S. lycopersici, S. xanthosomatis and S. subglobuliferum). The fungus morphologically differs from them by producing larger conidia and no brown pigment secreted on potato dextrose agar (PDA). Hence, the pathogenic fungus is proposed as Stemphylium platycodontis sp. nov.

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Acknowledgments

The authors sincerely thank Dr. Walter Gams for the nomenclature of this species. This project was supported by a grant from the Regional Subgenebank Support Program of RDA and National Institute of Biological Resources, Republic of Korea.

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Correspondence to Seung Hun Yu.

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Deng, J.X., Paul, N.C., Li, M.J. et al. Stemphylium platycodontis sp. nov., isolated from Platycodon grandiflorus in Korea. Mycol Progress 13, 477–482 (2014). https://doi.org/10.1007/s11557-013-0929-z

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