Two strains Neocosmospora stercicola (Sordariomycetes, Nectriaceae) with high nematicidal activity, isolated from the cysts of Globodera sp. (Heteroderidae) in China
| Autor: | Zaifu Yang, Hui Zhang, Zhaochun Jiang, Xinyue Zhang, Shan Wei, Yan Wu, Xiuhai Gan, Yong Wang, Xin Xie |
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| Rok vydání: | 2023 |
| Předmět: |
Chromadorea
Fusarium stercicola Nematoda Heteroderinae Ecology Chromadoria Fungi Nectriaceae Tylenchina Tylenchomorpha Biota Neocosmospora stercicola Rhabditida Ascomycota Fusarium Sordariomycetes Hypocreales nematophagous fungi Animalia Globodera Heteroderidae Tylenchoidea nematicidal activity Ecology Evolution Behavior and Systematics Plant-parasitic nematodes |
| Zdroj: | Biodiversity Data Journal 11: e100684 |
| ISSN: | 1314-2828 1314-2836 |
| DOI: | 10.3897/bdj.11.e100684 |
| Popis: | Plant-parasitic nematodes (PPNs) are significant pests that result in considerable economic losses in global crop production. Due to the high toxicity of chemical nematicides, there is a need to develop new strategies for nematode control. In this context, nematophagous fungi may offer a viable option for biological control. Two fungal strains (GUCC2212 and GUCC2232) were isolated from cysts of Globodera sp., identified as Neocosmospora stercicola. The fungal filtrates of the strains were evaluated for their nematicidal activity against three species of PPNs: Aphelenchoides besseyi, Bursaphelenchus xylophilus and Ditylenchus destructor. The fermentation filtrates of two strains exhibited substantial toxicity towards the evaluated nematodes, with mortality rates reaching up to 100% within 72 h. Concurrently, N. stercicola also demonstrated predatory and parasitic behavior. The eggs of Globodera sp. were parasitized by the two strains. N. stercicola represents a newly recorded species in China and a novel nematophagous species. In conclusion, the two strains of N. stercicola show promise as biocontrol agents for PPNs management. |
| Databáze: | OpenAIRE |
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