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Dissanayake LS, Marasinghe DS, Samarakoon MC, Maharachchikumbura SS, Mortimer PE, Hyde KD, Kuo CH, Kang JC. Three new species of Iodosphaeria (Xylariomycetidae): I.chiayiensis, I.jinghongensis and I.thailandica. MycoKeys 2022; 86:1-17. [PMID: 35095303 PMCID: PMC8760234 DOI: 10.3897/mycokeys.86.75801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/15/2021] [Indexed: 11/15/2022] Open
Abstract
Three fungal specimens (two sexual and one asexual) were collected during fieldwork conducted in China, Taiwan and Thailand. Both sexual morphs share superficial, black ascomata surrounded by flexuous setae; 8-spored, unitunicate, cylindrical asci, with J+, apical ring, and ellipsoidal to allantoid, aseptate, guttulate ascospores. The asexual morph has ceratosporium-like conidia arising from aerial hyphae with a single arm and are usually attached or with 2-3 arms, brown, often with a subglobose to conical cell at the point of attachment. Morphological examinations and phylogenetic analyses of a combined LSU-ITS dataset via maximum likelihood and Bayesian analyses indicated that these three collections were new species. Iodosphaeriachiayiensis (sexual morph), I.thailandica (sexual morph) and I.jinghongensis (asexual morph) are therefore introduced as new species in this study. Iodosphaeriachiayiensis has small, hyaline and ellipsoidal to allantoid ascospores, while I.thailandica has large ascomata, cylindrical to allantoid asci and hyaline to pale brown ascospores.
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Affiliation(s)
- Lakmali S. Dissanayake
- Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Guiyang 550025, ChinaGuizhou UniversityGuiyangChina
| | - Diana S. Marasinghe
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandMae Fah Luang UniversityChiang RaiThailand
- Department of Plant Medicine, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, TaiwanZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Milan C. Samarakoon
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandMae Fah Luang UniversityChiang RaiThailand
| | - Sajeewa S.N. Maharachchikumbura
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, ChinaNational Chiayi UniversityChiayiTaiwan
| | - Peter E. Mortimer
- Centre for Mountain Futures (CMF), Kunming Institute of Botany, Honghe County 654400, Yunnan, ChinaUniversity of Electronic Science and Technology of ChinaChengduChina
| | - Kevin D. Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, ThailandMae Fah Luang UniversityChiang RaiThailand
- Innovative Institute for Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, ChinaKunming Institute of BotanyYunnanChina
| | - Chang-Hsin Kuo
- Department of Plant Medicine, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, TaiwanZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Ji-Chuan Kang
- Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Guiyang 550025, ChinaGuizhou UniversityGuiyangChina
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