Essential mycorrhizal partners of the endemic Chilean orchids Chloraea collicensis and C. gavilu

Orchidioid fungi of the form-genus Rhizoctonia associated with the roots of Chloraea cuneata Lindl. from Araucanía, Chile

“…This is due to the lack of nutritious reserves in their seeds (Smith & Read 2008). In the soil, orchids commonly associate with Basidiomycota (McLaughlin & Spatafora 2014) fungi from the form-genus Rhizoctonia (Otero et al 2002, Durán et al 2007, Otero & Bayman 2009, Steinford et al 2010, Pereira et al 2014). This association is vital for plant success (Otero & Bayman 2009) and can persist in the adult stage, where the cortical cells of the roots usually show hyphae clusters known as pelotons (Pereira et al 2014).…”

“…In the soil, orchids commonly associate with Basidiomycota (McLaughlin & Spatafora 2014) fungi from the form-genus Rhizoctonia (Otero et al 2002, Durán et al 2007, Otero & Bayman 2009, Steinford et al 2010, Pereira et al 2014). This association is vital for plant success (Otero & Bayman 2009) and can persist in the adult stage, where the cortical cells of the roots usually show hyphae clusters known as pelotons (Pereira et al 2014). Some Chloraea species that co-occur with C. cuneata in the Araucanía district have been found to associate with orchidioid fungi belonging to the Tulasnellaceae (Pereira et al 2014).…”

“…This association is vital for plant success (Otero & Bayman 2009) and can persist in the adult stage, where the cortical cells of the roots usually show hyphae clusters known as pelotons (Pereira et al 2014). Some Chloraea species that co-occur with C. cuneata in the Araucanía district have been found to associate with orchidioid fungi belonging to the Tulasnellaceae (Pereira et al 2014). These fungi show the typical traits of the formgenus Rhizoctonia; namely hyphae constriction in the septum, right-angle branching of hyphae, and presence of monilioid cells (García et al 2006, Pereira et al 2014.…”

“…Some Chloraea species that co-occur with C. cuneata in the Araucanía district have been found to associate with orchidioid fungi belonging to the Tulasnellaceae (Pereira et al 2014). These fungi show the typical traits of the formgenus Rhizoctonia; namely hyphae constriction in the septum, right-angle branching of hyphae, and presence of monilioid cells (García et al 2006, Pereira et al 2014.…”

“…The presence of monilioid cells and other possible morphological traits typical of Rhizoctonia were registered. The possible teleomorph was assigned based on the number of nuclei per cell (Currah et al 1997, Pereira et al 2014.…”