Tracking mycorrhizas and extraradical mycelium of the edible fungus Lactarius deliciosus under field competition with Rhizopogon spp

Mycorrhiza
Sara HortalJavier Parladé

Abstract

The objective of this study is to evaluate the field persistence of the edible ectomycorrhizal fungus Lactarius deliciosus in competition with two ubiquitous soil fungi. Couples of plants inoculated with either L. deliciosus, Rhizopogon roseolus, or R. luteolus were transplanted, 10 cm apart, in two different sites at the following combinations: L. deliciosus-R. roseolus, L. deliciosus-R. luteolus, L. deliciosus-control (non-inoculated), control-R. roseolus, control-R. luteolus, and control-control. Eight months after transplantation, root colonization and extraradical soil mycelium for each fungal species were quantified. For mycelium quantification, soil cores equidistant to the two plants in each couple were taken, and total deoxyribonucleic acid (DNA) was extracted. Real-time polymerase chain reaction analysis was performed using specific primers and TaqMan Minor groove binding (MGB) probes designed in the ribosomal DNA internal transcribed spacer region of each fungal species. Field site significantly influenced persistence of both mycorrhizas and extraradical mycelium of L. deliciosus. Extraradical mycelium quantity was positively correlated with the final percentage of ectomycorrhizas for the three fungal species. Differ...Continue Reading

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Citations

Jul 5, 2011·Fungal Biology·Greg W DouhanMarc-André Selosse
Jul 29, 2015·Mycorrhiza·Filomena GomesHelena Machado
Sep 29, 2009·FEMS Microbiology Ecology·Elisa ZampieriAntonietta Mello
Dec 24, 2014·PloS One·Mirco IottiAlessandra Zambonelli
Jul 3, 2016·Mycorrhiza·Muneyoshi YamaguchiHitoshi Murata
Aug 30, 2016·Environmental Pollution·Jaroslava CejpkováJan Borovička

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