Novel root-fungus symbiosis in Ericaceae: sheathed ericoid mycorrhiza formed by a hitherto undescribed basidiomycete with affinities to Trechisporales

0379256 - BÚ 2013 RIV US eng J - Článek v odborném periodiku
Vohník, Martin - Sadowsky, J. J. - Kohout, Petr - Lhotáková, Z. - Nestby, R. - Kolařík, Miroslav
Novel root-fungus symbiosis in Ericaceae: sheathed ericoid mycorrhiza formed by a hitherto undescribed basidiomycete with affinities to Trechisporales.
PLoS ONE. Roč. 7, č. 6 (2012), e39524. ISSN 1932-6203. E-ISSN 1932-6203
Grant CEP: GA ČR GP206/09/P340
Institucionální podpora: RVO:67985939 ; RVO:61388971
Klíčová slova: ericoid mycorrhiza * Ericaceae * Basidiomycetes
Kód oboru RIV: EF - Botanika; EE - Mikrobiologie, virologie (MBU-M)
Impakt faktor: 3.730, rok: 2012

This paper describes a novel type of mycorrhizal symbiosis termed sheathed ericoid mycorrhiza. The mycobiont possesses clamped hyphae, produces layered sheaths around hair roots and colonizes their rhizodermis with typical hyphal coils. Phylogenetic analysis indicates that the basidiomycete belongs to the proximity of Trechisporales and Hymenochaetales but lacks a clear relationship to fungi currently placed in these orders. The basidiomycete degraded a recalcitrant aromatic substrate that was left unaltered by common ericoid mycorrhizal ascomycetes. Our findings provide coherent evidence that this basidiomycete forms a morphologically distinct mycorrhizal symbiosis that may occur at significant levels under natural conditions, yet remain undetected when subject to amplification by ‘universal’ primers. The lignocellulolytic assay suggests the basidiomycete may confer host adaptations distinct from those provisioned by the so far investigated ascomycetous ericoid mycorhrizal fungi.
Trvalý link: http://hdl.handle.net/11104/0210509