2026-04-30T00:38:49Zhttps://uvadoc.uva.es/oai/request
oai:uvadoc.uva.es:10324/408442024-12-17T13:15:27Zcom_10324_1183com_10324_931com_10324_894col_10324_1396
UVaDOC author Flores Pacheco, Juan Asdrúbal author Muñoz Adalia, Emigdio Jordan author Martínez Álvarez, Pablo author Pando Fernández, Valentín author Díez Casero, Julio Javier author Martín García, Jorge 2020-05-14T11:30:52Z 2020-05-14T11:30:52Z 2017 Forest systems, 2017, vol. 26, n. 3. 7 p. 2171-9845 http://uvadoc.uva.es/handle/10324/40844 10.5424/fs/2017263-11060 Aim of the study: To assess the impact on two mycoviruses recently described in F. circinatum mitovirus 1, and 2-2 (FcMV1 and FcMV2-2) on i) mycelial growth, ii) spore germination and iii) relative necrosis. Material and methods: Fourteen monosporic strains of F. circinatum (one of each pair infected with mycoviruses and the other without them) of the pathogen with and without viruses were selected for the assay. The statistical analysis, were a linear mixed model of analysis of variance considering one between-subjects factor (isolate) and one within-subjects factor with four levels (1=without viruses, 2=only virus FcMV1, 3=only virus FcMV2-2 and 4=both viruses). Main results: Colony growth rates of F. circinatum isolates were significantly reduced in presence of mycoviruses (p=0.002). The spore germination was also reduced in the F. circinatum isolates containing mycovirus as compared to mycovirus-free isolates (p<0.001). No significant differences in lesion lengths caused by F. circinatum were found in relation to the presence/absence of mycovirus (p<0.61). Research highlights: Reduction of the percentage of spore germination in the isolates of F. circinatum with mycovirus infections, as compared to free isolates, provides indications of reduction of metabolic activity and plant physiology are discussed. The lack of significant differences found in the length of the lesions caused by F. circinatum with respect to the presence/absence of mycovirus, indicates that further studies with a larger number of variables are required. eng Attribution-NonCommercial-NoDerivatives 4.0 Internacional Effect of mycoviruses on growth, spore germination and pathogenicity of the fungus Fusarium circinatum info:eu-repo/semantics/article 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URL https://uvadoc.uva.es/bitstream/10324/40844/1/Effect-of-mycoviruses-on-growth.pdf File MD5 6e350ecffce2787f888a9fc8d2e84d70 392133 application/pdf Effect-of-mycoviruses-on-growth.pdf