Diversity of foliar endophytes in a dioecious wild grass and their interaction with the systemic Epichloë
This study compares the culturable fungal endophytic community inhabiting leaves of Epichlo€e-infected (Eþ) and Epichlo€e-free (E-) plants of Poa bonariensis. Plants were collected from a wild population (dioecious species) where Eþ and E- plants co-exist. Fungal endophytes were isolated and then mo...
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| Otros Autores: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2020mccargo.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| Sumario: | This study compares the culturable fungal endophytic community inhabiting leaves of Epichlo€e-infected (Eþ) and Epichlo€e-free (E-) plants of Poa bonariensis. Plants were collected from a wild population (dioecious species) where Eþ and E- plants co-exist. Fungal endophytes were isolated and then morphology and ribosomal DNA internal transcribed spacer sequences were used for the identification of isolates. In total 24 different taxa of non-Epichlo€e (NE) endophytes were identified. No significant differences were found in richness and diversity indexes of NE-endophytes between Eþ and E- plants, or between pistillate (P) and staminate (S) plants. When we analyzed these effects based on the count of the most abundant genera, Alternaria and Stemphylium infection frequencies decreased in S plants, while in Eþ plants, this tendency was observed for Alternaria. Our results suggest that Epichlo€e and the sex of the host plant may modulate some of the dominant foliar endophytic fungal taxa. |
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| ISSN: | 1754-5048 |