Three novel species and a new record of Daldinia (Hypoxylaceae) from Thailand
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ORIGINAL ARTICLE
Three novel species and a new record of Daldinia (Hypoxylaceae) from Thailand Sarunyou Wongkanoun 1,2 & Kevin Becker 4 & Kanthawut Boonmee 1 & Prasert Srikitikulchai 2 & Nattawut Boonyuen 3 & Boonchuai Chainuwong 2 & Jennifer Luangsa-ard 3 & Marc Stadler 4 Received: 17 April 2020 / Revised: 24 August 2020 / Accepted: 26 August 2020 # The Author(s) 2020
Abstract In an investigation of stromatic Xylariales in Thailand, several specimens of Daldinia were discovered. Three novel species (D. flavogranulata, D. phadaengensis, and D. chiangdaoensis) were recognized from a molecular phylogeny based on concatenated ITS, LSU, RPB2, and TUB2 sequence data, combined with morphological characters and secondary metabolite profiles based on high performance liquid chromatography coupled to diode array detection and mass spectrometry (HPLC-MS). The major components detected were cytochalasins (in D. flavogranulata and D. chiangdaoensis) and daldinin type azaphilones (in D. phadaengensis). In addition, D. brachysperma, which had hitherto only been reported from America, was found for the first time in Asia. Its phylogenetic affinities were studied, confirming previous suspicions from morphological comparisons that the species is closely related to D. eschscholtzii and D. bambusicola, both common in Thailand. Daldinia flavogranulata, one of the new taxa, was found to be closely related to the same taxa. The other two novel species, D. phadaengensis and D. chiangdaoensis, share characters with D. korfii and D. kretzschmarioides, respectively. Keywords Ascomycota . Sordariomycetes . Chemotaxonomy . Three new species
Introduction The genus Daldinia was erected by Cesati and De Notaris (1863) in honor of the Swiss monk, Agostino Daldini.
Today, it is one of largest genera in the Hypoxylaceae (Ascomycota, Xylariales). Traditionally, Daldinia species were recognized by the internal concentric zones below the perithecial layer in their stroma and by the presence of KOH-
Taxonomic novelties Daldinia chiangdaoensis Srikitikulchai, Wongkanoun, M. Stadler & Luangsa-ard, D. flavogranulata Srikitikulchai, Wongkanoun, M. Stadler & Luangsa-ard, and D. phadaengensis Srikitikulchai, Wongkanoun, M. Stadler & Luangsaard. Section Editor: Hans-Josef Schroers Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11557-020-01621-4) contains supplementary material, which is available to authorized users. * Marc Stadler [email protected] 1
Faculty of Biotechnology, College of Agricultural Innovation, Biotechnology and Food, Rangsit University, Phahonyothin Road, Rak-hok, Pathum Thani 12000, Thailand
2
National Biobank of Thailand (NBT), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand
3
Plant Microbe Interaction Research Team (APMT), Integrative Crop Biotechnology and Management Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Tha
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