Article

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

2026-08-28

Abstract excerpt

Mycoviruses modulate fungal fitness and pathogenicity, yet their biological roles in obligate biotrophic phytopathogens remain poorly understood. Here, we report the first functional characterization of totiviruses in rust fungi, identifying five novel totiviruses, designated Puccinia triticina totivirus 1 to 5 (PtTV1?PtTV5), from the wheat leaf rust fungus Puccinia triticina (Pt). All five PtTVs possess the canon...

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Literature Corpus work: fb6f27e7-b9fc-5641-886a-988dff2d8623
DOI: 10.64898/2026.08.25.747185

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