Diversity of root-associated culturable fungi of Cephalanthera rubra (Orchidaceae) in relation to soil characteristics
| Autor: | Viswambharan Sarasan, Jonathan P. Kendon, Kazutomo Yokoya, Jake Bell |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Orchidaceae
Cephalanthera rubra biology Tripartite General Neuroscience fungi lcsh:R Biodiversity Plant-fungus interaction lcsh:Medicine Small population size Woodland General Medicine Ex situ conservation biology.organism_classification General Biochemistry Genetics and Molecular Biology Tree-orchid relationship Mycology Soil pH Culture-dependent Botany Mycorrhiza General Agricultural and Biological Sciences |
| Zdroj: | PeerJ, Vol 8, p e8695 (2020) |
| ISSN: | 2167-8359 |
| Popis: | Cephalanthera rubra (L.) Rich., Red Helleborine, is a widespread orchid in Europe but known only from three very small populations in England. These populations are in decline with no natural seed setting for more than a decade. The species may become extinct in the UK soon unless viable strategies are in place for ex situ conservation, especially the use of symbiotic propagation. Because of the fragile nature of the populations in England mycorrhizal fungal diversity study is not feasible. Therefore, to understand the factors needed for healthy Red Helleborine populations, soil characteristics and diversity of culturable root-derived fungi of the populations from a small area in the Loire Valley in France were studied. The main objectives of the study were: (1) Which culturable mycorrhizal fungi associated with C. rubra roots and (2) To what extent is variation in fungal communities related to variation in soil characteristics? Here, we report a significant difference in diversity of culturable mycorrhizal and non-mycorrhizal fungi depending on soil pH and phosphorus content. Mycorrhizal associations were favoured by plants in locations with low soil nutrient availability and comparatively higher pH. Our study shows that mycorrhizal fungi, both ecto and endo, can be cultured from roots of plants at different maturity stages. |
| Databáze: | OpenAIRE |
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