@ARTICLE{TreeBASE2Ref28310, author = {Arthur Charles Grupe and Marcelo A Sulzbacher and Tine Grebenc and Rosanne Healy and Gregory Michael Bonito and Matthew E. Smith}, title = {Tuber brennemanii and Tuber floridanum: two new Tuber species (Pezizales, Ascomycota) are among the most commonly detected ectomycorrhizal taxa within commercial pecan (Carya illinoinensis) orchards}, year = {2018}, keywords = {agriculture, biodiversity, co-cropping, truffles, Tuberaceae, 2 new taxa}, doi = {}, url = {http://}, pmid = {}, journal = {Mycologia}, volume = {}, number = {}, pages = {}, abstract = {Truffles are sequestrate hypogeous fungi and most form ectomycorrhizal (ECM) associations with trees. Truffles belonging to Tuber (Pezizales, Ascomycota), 'true truffles', associate with diverse plant hosts, including economically important species such as pecan (Carya illinoinensis). Morphological and phylogenetic studies have delimited several major lineages of Tuber, which include many cryptic and undescribed species. One of these, the Maculatum clade, is a speciose group that is characterized by relatively small, light colored ascomata that have alveolate-reticulate spores. Here we describe two new species within the Maculatum clade, Tuber brennemanii and Tuber floridanum (previously identified as Tuber sp. 36 and Tuber sp. 47). We delineate these two species by phylogenetic analyses of nuclear ITS1-5.8SITS2 and partial 28S rDNA, and through morphological analysis. Systematic studies of ascomata and ECM fungal communities indicate that these species are geographically widespread and are common ECM symbionts of pecans and other members of the Fagales, particularly in sites with disturbed soils and nutrient enrichment.} }

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