ORIGINAL RESEARCH article
Front. Microbiol.
Sec. Terrestrial Microbiology
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1705425
Three New Entomopathogenic Fungal Species Isolated from Soil in China
Provisionally accepted
- 1College of Plant Protection, South China Agricultural University, Guangzhou, China
- 2Ganzhou Polytechnic, Ganzhou, China
- 3All-Russian Institute of Plant Protection, Saint Petersburg, Russia
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Entomopathogenic fungi play a crucial role in integrated pest management by targeting pests through specific infection mechanisms, offering both environmental compatibility and sustainability. In recent years, the growing challenge of pesticide resistance and the increasing demand for green agriculture have made the exploration of novel entomopathogenic fungal resources a major research focus in biological control. In this study, we employed a combination of traditional morphological characterization and multi-locus phylogenetic analyses to identify and describe three new species: Gongronella yichunensis, Gongronella shangraoensis, and Yunnania jiujiangensis. For the genus Gongronella, the ITS and LSU regions were used for phylogenetic reconstruction, while the genus Yunnania was analyzed using ITS, LSU, β-tubulin (β-TUB), and translation elongation factor (TEF) gene sequences. Furthermore, preliminary bioactivity assessments revealed varying levels of pathogenicity of the new species against Ostrinia furnacalis. Gongronella yichunensis (strain JX09A02) demonstrated the highest virulence, with a median lethal time (LT₅₀) of 7.2 days and a median lethal concentration (LC₅₀) of 28.0 × 10⁶ spores/mL. Gongronella shangraoensis (strain JX20B02) exhibited intermediate efficacy, showing an LT₅₀ of 8.4 days and an LC₅₀ of 92.3 × 10⁶ spores/mL. Yunnania jiujiangensis (strain JX11B02) displayed relatively lower virulence, with an LT₅₀ of 9.5 days and an LC₅₀ of 243.8 × 10⁶ spores/mL. These findings not only enrich the genetic resources of entomopathogenic fungi in China but also provide a valuable theoretical and germplasm foundation for developing novel biocontrol agents.
Keywords: entomopathogenic fungi, new species, Gongronella, Yunnania, phylogenetics
Received: 15 Sep 2025; Accepted: 10 Oct 2025.
Copyright: © 2025 Liu, Chen, Zhang, Hu, Berestetskiy, HU and Weng. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Qunfang Weng, wengweng@scau.edu.cn
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