RT info:eu-repo/semantics/article
T1 Unuamitovirus fuci2 impact on Fusarium circinatum pathogenicity and pine defence response
A1 Zamora Ballesteros, Cristina
A1 Pastor Durántez, Eduardo
A1 Martín García, Jorge
A1 Díez Casero, Julio Javier
K1 Fusarium circinatum
K1 Pine pitch canker
K1 FuciMV2-1
K1 Pinus radiata
K1 Biocontrol
K1 3106 Ciencia Forestal
K1 3106.08 Silvicultura
AB Mycovirus-induced hypovirulence offers promise as a sustainable strategy for managing forest diseases. Two mycoviruses have been found naturally infecting Fusarium circinatum, the causal agent of pine pitch canker (PPC), yet their role in fungal pathogenicity remains unclear. This study focused on Unuamitovirus fuci2 (FuciMV2-1), assessing its impact on fungal virulence through pathogenicity assays and dual RNA-seq analysis of infected Pinus radiata seedlings. Pathogenicity tests revealed no significant differences in virulence between virus-infected and virus-cured fungal strains. Similarly, host transcriptomic responses were largely comparable between treatments. Nevertheless, seedlings infected with the FuciMV2-1-carrying strain showed slightly stronger activation of the jasmonic acid pathway and cell wall defence via PME inhibitor expression. In contrast, virus-cured strains may influence oleoresin biosynthesis. At the fungal level, transcriptomic changes were minimal, though the down-regulation of the VE1 gene in the presence of FuciMV2-1 suggests a potential role in virulence regulation. Additional studies are needed to further investigate the effects of F. circinatum mycoviruses and to clarify their potential role in PPC control.
PB Springer Nature
SN 1617-416X
YR 2025
FD 2025
LK https://uvadoc.uva.es/handle/10324/77037
UL https://uvadoc.uva.es/handle/10324/77037
LA eng
NO Mycological Progress, 2025, vol. 24, art. 40
NO Producción Científica
DS UVaDOC
RD 02-ago-2025