2026/02/17 by Rui-Fang Xu, Samantha C. Karunarathna, Kevin D. Hyde +7 · 1 voice
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Entomopathogenic Microorganisms in Pest Control #Mycorrhizal Fungi and Plant Interactions #Plant Pathogens and Fungal Diseases
paper · pdf · doi:10.3897/mycokeys.128.182163
openalex publication_date 2026/02/17 · openalex created_date 2026/02/18 · openalex updated_date 2026/07/02
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 tef 1-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 .