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Five novel ubiquitous totiviruses function as virulence-promoting symbionts in the obligate biotrophic fungus Puccinia triticina

Jin-Yang Li Zhiwen Zheng Nuo-Heng Wang Hui-Guang Zhao Ya-Nan Lu Na Liu Peng-Yu Song Zhenling Ma Wenming Zheng Yan-Hui Zhang

Aug 2026 · bioRxiv · 0 citations · 1 references

Biology

TL;DR

It is demonstrated that totiviruses function as virulence-promoting symbionts in Pt, establishing for the first time a functional link between totiviral infection and enhanced pathogenicity in cereal rust fungi and identifying candidate targets for RNAi-based disease control.

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