Geosmithia-Ophiostoma: a New Fungus-Fungus Association
| Autor: | Cecilia Comparini, P. Bettini, Luisa Ghelardini, Aniello Scala, Alessia Lucia Pepori, Arcangela Frascella, Alberto Santini, Sabrina Sarrocco, Giovanni Vannacci, Anna Bonini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Ophiostoma Biological pest control Soil Science Fungus 01 natural sciences parassitismo tra specie fungine grafiosi dell'olmo geosmithia ophiostoma novo ulmi 03 medical and health sciences Pathosystem Botany Geosmithia spp Biological control . Dutch elmdisease (DED) . Fungus-fungus interaction . Geosmithia spp. . Mycoparasite . Ophiostoma novo-ulmi Biological control Dutch elm disease (DED) Fungus-fungus interaction Mycoparasite Ophiostoma novo-ulmi Ecology Evolution Behavior and Systematics Mycelium Fungal Microbiology Geosmithia Ecology biology biology.organism_classification Spore 030104 developmental biology Dutch elm disease 010606 plant biology & botany |
| Zdroj: | Microbial ecology 75 (2018): 632–646. doi:10.1007/s00248-017-1062-3 info:cnr-pdr/source/autori:Pepori A.L., Bettini P.P., Comparini C., Sarrocco S., Bonini A., Frascella A., Ghelardini L., Scala A., Vannacci G., Santini A./titolo:Geosmithia-Ophiostoma: a New Fungus-Fungus Association/doi:10.1007%2Fs00248-017-1062-3/rivista:Microbial ecology/anno:2018/pagina_da:632/pagina_a:646/intervallo_pagine:632–646/volume:75 Microbial Ecology |
| DOI: | 10.1007/s00248-017-1062-3 |
| Popis: | In Europe as in North America, elms are devastated by Dutch elm disease (DED), caused by the alien ascomycete Ophiostoma novo-ulmi. Pathogen dispersal and transmission are ensured by local species of bark beetles, which established a novel association with the fungus. Elm bark beetles also transport the Geosmithia fungi genus that is found in scolytids’ galleries colonized by O. novo-ulmi. Widespread horizontal gene transfer between O. novo-ulmi and Geosmithia was recently observed. In order to define the relation between these two fungi in the DED pathosystem, O. novo-ulmi and Geosmithia species from elm, including a GFP-tagged strain, were grown in dual culture and mycelial interactions were observed by light and fluorescence microscopy. Growth and sporulation of O. novo-ulmi in the absence or presence of Geosmithia were compared. The impact of Geosmithia on DED severity was tested in vivo by co-inoculating Geosmithia and O. novo-ulmi in elms. A close and stable relation was observed between the two fungi, which may be classified as mycoparasitism by Geosmithia on O. novo-ulmi. These results prove the existence of a new component in the complex of organisms involved in DED, which might be capable of reducing the disease impact. Electronic supplementary material The online version of this article (10.1007/s00248-017-1062-3) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|