Main fungal partners and different levels of specificity of orchid mycorrhizae in the tropical mountain forests of Ecuador
Título del documento: Main fungal partners and different levels of specificity of orchid mycorrhizae in the tropical mountain forests of Ecuador
Revista: Lankesteriana
Base de datos: PERIÓDICA
Número de sistema: 000401362
ISSN: 1409-3871
Autores: 1
Instituciones: 1Universidad Técnica Particular de Loja, Departamento de Ciencias Naturales, Loja. Ecuador
Año:
Periodo: Ago
Volumen: 16
Número: 2
Paginación: 299-305
País: Costa Rica
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Abstract. Orchids are a main component of the diversity of vascular plants in Ecuador with approximately 4000 species representing about 5.3% of the orchid species described worldwide. More than a third of these species are endemics. As orchids, in contrast to other plants, depend on mycorrhizal fungi already for seed germination and early seedling establishment, availability of appropriate fungi may strongly influence distribution of orchid populations. It is currently debated if green orchids depend on specific mycobionts or may be equally promoted by a broad spectrum of mycorrhizal fungi, discussion mostly based on data from temperate regions. Here we summarize results obtained from broad scale investigations in the tropical mountain rain forest of Ecuador revealing associations with members of Serendipitaceae (Sebacinales), Tulasnellaceae, Ceratobasidiaceae (Cantharellales), and Atractiellales. Recent molecular data show that these worldwide spread fungal groups have broad ecological implications and are specifically suited as mycorrhizal fungi of green orchids. We found that main fungal partners and different levels of specificity among orchids and their mycobionts in the tropical mountain forests correspond to findings in other biomes despite the large ecological differences
Disciplinas: Biología
Palabras clave: Angiospermas,
Ecología,
Hongos,
Orquídeas,
Epífitas,
Micobiontes,
Atractiellales,
Ceratobasidiaceae,
Serendipitaceae,
Tulasnellaceae
Keyword: Biology,
Angiosperms,
Ecology,
Fungi,
Orchids,
Epiphytes,
Mycobionts,
Atractiellales,
Ceratobasidiaceae,
Serendipitaceae,
Tulasnellaceae
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