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Colletotrichum carthami comb. nov., an anthracnose pathogen of safflower, garland chrysanthemum and pot marigold, revived by molecular phylogeny with authentic herbarium specimens |
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| Authors: | Seiji Uematsu Koji Kageyama Jouji Moriwaki Toyozo Sato |
| Affiliation: | 1. Southern Prefectural Horticulture Institute, Chiba Prefectural Agriculture and Forestry Research Center, Yamamoto, Tateyama, Chiba, 294-0014, Japan 2. River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan 3. Horticultural Research Institute, Toyama Prefectural Agricultural, Forestry & Fisheries Research Center, 288 Goromaru, Tonami, Toyama, 939-1327, Japan 4. National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan |
| Abstract: | Authentic herbarium specimens of Gloeosporium carthami and G. chrysanthemi as well as live Colletotrichum strains from Carthamus tinctorius, Chrysanthemum coronarium var. spatiosum, and Calendula officinalis were judged to be conspecific based on morphological and molecular phylogenetic analyses. Representative strains from three asteraceous plants were demonstrated by inoculation tests to possess specific pathogenicity to the host plants. We propose a new combination, Colletotrichum carthami, for the anthracnose pathogen of the asteraceous plants, designating our specimen of G. carthami as its epitype. We characterize the species, which differs from the closely related Colletotrichum simmondsii in its pathogenicity and molecular characteristics. |
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