J Syst Evol ›› 2025, Vol. 63 ›› Issue (2): 431-468.DOI: 10.1111/jse.13128  cstr: 32099.14.jse.13128

• Research Article • Previous Articles     Next Articles

The polyphasic approach reveals ten novel and one known Ascomycota taxa from terrestrial agarwood-producing trees

Tian‐Ye Du1,2,3, Saowaluck Tibpromma1*, Kevin D. Hyde2,3, Ausana Mapook2, Dong‐Qin Dai1, Gui‐Qing Zhang1, Steven L. Stephenson4, Nakarin Suwannarach5, Jaturong Kumla5, Abdallah M. Elgorban6, Kunhiraman C. Rajeshkumar7, Sajeewa S. N. Maharachchikumbura8, Qiang Li1, and Samantha C. Karunarathna1,9*   

  1. 1Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
    2Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
    3School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
    4Department of Biological Sciences, University of Arkansas, Fayetteville 72701, USA
    5Center of Excellence in Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
    6Department of Botany and Microbiology, College of Science, King Saud University, PO 2455, Riyadh 11451, Saudi Arabia
    7National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology (Fungi) Gr, MACS Agharkar Research Institute, G. G. Agarkar Road, Pune 411004, India
    8School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
    9National Institute of Fundamental Studies, Hantane Road, Kandy 2000, Sri Lanka

    *Authors for correspondence. Samantha C. Karunarathna. E‐mail: samanthakarunarathna@gmail.com; Saowaluck Tibpromma. E‐mail: saowaluckfai@gmail.com
  • Received:2024-02-02 Accepted:2024-07-03 Online:2024-09-30 Published:2025-03-01
  • Supported by:
    This work was supported by the “Yunnan Revitalization Talents Support Plan” (Young Talents Program and High‐End Foreign Experts Program) and the Key Laboratory of Yunnan Provincial Department of Education of the Deep‐Time Evolution on Biodiversity from the Origin of the Pearl River. Samantha C. Karunarathna and Dong‐Qin Dai thank the National Natural Science Foundation of China (No. 32260004 and 31760013) for their support. The authors appreciate the Researchers Supporting Project (No. RSP2024R56), King Saud University, Riyadh, Saudi Arabia. Kevin D. Hyde thanks the National Research Council of Thailand (NRCT) grant “Total fungal diversity in a given forest area with implications towards species numbers, chemical diversity, and biotechnology” (Grant No. N42A650547).

Abstract: Aquilaria (Thymelaeaceae), a tropical and subtropical plant, is one of the main genera that can produce agarwood. Aquilaria sinensis and Aquilaria yunnanensis are native Chinese tree species, and A. sinensis is China's main agarwood source. Agarwood is a nontimber forest product with high economic and medicinal value. First-grade agarwood is sold as much as $100 000 per kilogram. There has been little research on the saprobic fungi associated with Aquilaria, with only 11 records having been reported. In the present study, 10 terrestrial saprobic fungi associated with A. sinensis and A. yunnanensis were collected in China. Based on morphological and phylogenetic studies, these 10 collections are introduced herein as one new genus (Aquilariomyces), nine new species – Aquilariomyces aquilariae, Corynespora aquilariae, Melomastia maomingensis, Nigrograna aquilariae, Parathyridariella aquilariae, Peroneutypa maomingensis, Phaeoseptum aquilariae, Pseudothyridariella aquilariae, and Triangularia aquilariae, and one known species (Camarographium clematidis). Descriptions, illustrations of morphological characteristics, photo plates, phylogenetic trees, and the results of a pairwise homoplasy index test (PHI) test results are provided.

Key words: agarwood fungi, Aquilaria, Dothideomycetes, morphology, saprobes, Sordariomycetes, ten new taxa, Thymelaeaceae.