دورية أكاديمية
Is the Distribution of Two Rare Orchis Sister Species Limited by Their Main Mycobiont?
| العنوان: | Is the Distribution of Two Rare Orchis Sister Species Limited by Their Main Mycobiont? |
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| المؤلفون: | Jacopo Calevo, Samuele Voyron, Enrico Ercole, Mariangela Girlanda |
| المصدر: | Diversity, Vol 12, Iss 7, p 262 (2020) |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Biology (General) |
| مصطلحات موضوعية: | fungal metabarcoding, orchidaceae, mycorrhiza, Tulasnella, rhizoctonia, Biology (General), QH301-705.5 |
| الوصف: | As orchids rely on their mycorrhizal fungi for nutrient supply, their spatial range is dependent on the distribution of orchid mycorrhizal (OM) fungi. We addressed possible correlations between mycorrhizal specificity and the geographic distribution of orchids and OM fungi in three populations of the rare sister species Orchis patens and O. canariensis. Metabarcoding of the fungal ITS2 region indicated that, although adult plants of either species were colonized by several ceratobasidioid, tulasnelloid, sebacinoid and serendipitoid fungi, the mycobiont spectra were dominated by Tulasnella helicospora (which occurred in 100% of examined plants with high read numbers), which is a globally distributed fungus. In vitro assays with a T. helicospora isolate obtained from O. patens indicated the effectiveness of this OM fungus at germinating seeds of its native host. At a local scale, higher read numbers for T. helicospora were found in soil samples collected underneath O. patens roots than at locations unoccupied by the orchid. Although these findings suggest that the geographical pattern of the main fungal symbiont does not limit the distribution of O. patens and O. canariensis at this scale, the actual causal link between orchid and OM fungal occurrence/abundance still needs to be better understood. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 12070262 1424-2818 |
| Relation: | https://www.mdpi.com/1424-2818/12/7/262; https://doaj.org/toc/1424-2818 |
| DOI: | 10.3390/d12070262 |
| URL الوصول: | https://doaj.org/article/93b907ae67e64da5a1d0360ce01d8c12 |
| رقم الأكسشن: | edsdoj.93b907ae67e64da5a1d0360ce01d8c12 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 12070262 14242818 |
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| DOI: | 10.3390/d12070262 |