Published February 17, 2026
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Taxonomy and phylogeny of Pseudochaetosphaeronema associated with rubber trees from Yunnan Province, China
Authors/Creators
- 1. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand|College of Biology and Food Engineering, Qujing Normal University, Qujing, China|School of Science, Mae Fah Luang University, Chiang Rai, Thailand
- 2. College of Biology and Food Engineering, Qujing Normal University, Qujing, China
- 3. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand
- 4. School of Science, Mae Fah Luang University, Chiang Rai, Thailand|Microbial Products and Innovations Research Group, Mae Fah Luang University, Chiang Rai, Thailand
- 5. Bioeconomy Science Institute, Auckland, New Zealand
- 6. Center of Excellence in Biotechnology Research (CEBR), King Saud University, Riyadh, Saudi Arabia
- 7. Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- 8. College of Science, King Saud University, Riyadh, Saudi Arabia
- 9. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand|Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
Description
Approximately 77% of Pseudochaetosphaeronema species have been reported from China and Thailand in terrestrial habitats. We collected and isolated fruiting bodies of ascomycetous fungi in Yunnan Province, China, from dead branches of Hevea brasiliensis. Integrating morphology with phylogenetic analyses of combined ITS, LSU, SSU, and tef1-α sequence data, the strains were identified as a new species (Pseudochaetosphaeronema heveae), two new host records (P. baoshanense and P. chiangraiense), and a new collection (P. xishuangbannaense). Descriptions, illustrations, phylogenetic analysis results, and morphological comparisons with allied taxa of the four Pseudochaetosphaeronema species are provided. These findings expand the known diversity and host associations of Pseudochaetosphaeronema. In addition, based on morphological characteristics and molecular phylogenetic data, P. hongheense is synonymized under P. baoshanense.
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References
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