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Type: Article
Published: 2020-12-24
Page range: 269–276
Abstract views: 37
PDF downloaded: 1

Tuber melanoexcavatum sp. nov., an edible black truffle from China

Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223 Yunnan, China Institute of Medicinal Plant, Yunnan Academy of Agricultural Sciences, Kunming 650205 Yunnan, China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100 Thailand
Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223 Yunnan, China Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100 Thailand
Institute of Medicinal Plant, Yunnan Academy of Agricultural Sciences, Kunming 650205 Yunnan, China
Institute of Medicinal Plant, Yunnan Academy of Agricultural Sciences, Kunming 650205 Yunnan, China
Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223 Yunnan, China
Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223 Yunnan, China
Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223 Yunnan, China The New Zealand Institute for Plant & Food Research Ltd., Christchurch 8140, New Zealand
CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 P.R. China
Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223 Yunnan, China
Fungi ITS Pezizales Phylogeny Taxonomy Tuberaceae

Abstract

A new black truffle species with a basal cavity, Tuber melanoexcavatum, is identified and described. The new species is morphologically similar to T. pseudobrumale, T. pseudoexcavatum, and T. mesentericum in having a basal cavity. However, T. melanoexcavatum differs from T. pseudobrumale and T. pseudoexcavatum in having black pyramidal warts and 5 to 8 spored asci, and differs from T. mesentericum by having spiny ascospores and 1 to 5 spored (rarely 6 spored) asci. Phylogenetic analysis indicates that T. melanoexcavatum is most closely related to T. pseudobrumale, but the two still clearly differentiate. Tuber melanoexcavatum grows as a mycorrhizal association with Cyclobalanopsis glaucoides. Tuber melanoexcavatum is considered an edible black truffle species and is indigenous to China.