Studies on Morinia: recognition of Morinia longiappendiculata sp. nov. as a new endophytic fungus, and a new circumscription of Morinia pestalozzioides
| Autor: | Angela Basilio, Francisca Vicente, Javier Collado, Pilar Hernández, Fernando Pelaez, J. Rubén Tormo, Gerald F. Bills, M. Teresa Díez, Gonzalo Platas |
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| Rok vydání: | 2006 |
| Předmět: |
Physiology
Sequence analysis Coelomycetes Microbiology Conidium Magnoliopsida Amphisphaeriaceae Genus Botany DNA Ribosomal Spacer Genetics Eukaryotic Initiation Factors Molecular Biology Ecology Evolution Behavior and Systematics Chromatography High Pressure Liquid Chitin Synthase biology Plant Stems Xylariales Cell Biology General Medicine Chitin synthase Spores Fungal biology.organism_classification Actins Type species Indenes biology.protein Truncatella (fungus) |
| Zdroj: | Mycologia. 98(4) |
| ISSN: | 0027-5514 |
| Popis: | A new coelomycete, Morinia longiappendiculata sp. nov., isolated from living stems of four plant species in central Spain, is described. The distinctive morphological characteristics of this fungus are the production of conidia with long basal and apical appendages on filiform conidiogenous cells that contrasts with the short-appendaged conidia and cylindrical conidiogenic cells of the type species, M. pestalozzioides. Comparative sequence analysis of the ITS rDNA region and fragments of the translation elongation factor 1alpha, actin and chitin synthase 1 genes and the study of the HPLC profiles of the M. longiappendiculata and M. pestalozzioides isolates supported the recognition of the new species. Comparison of the ITS rDNA sequences of the Morinia isolates with GenBank sequences indicated that the genus belongs to the Amphisphaeriaceae with the highest similarity to Bartalinia and Truncatella. Bresadola's original definition of M. pestalozzioides is updated by adding information on conidiogenesis and molecular data. A lectotype and epitype are designated for the species. A study of bioactive metabolites revealed that M. pestalozzioides cultures produced moriniafungin, a novel sordarin analog with potent antifungal activity. |
| Databáze: | OpenAIRE |
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