Transmission of PsV-F and PsV-S Mycoviruses during Conidiogenesis of Penicillium stoloniferum

DeMarini, D.M.; Kurtzman, Cletus P.; Fennell, Dorothy I.; Worden, K. A.; Detroy, R. W.

doi:10.1099/00221287-100-1-59

Cited by 10 publications

(2 citation statements)

References 13 publications

(7 reference statements)

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“…This might suggest that the recovered phenotype of 94233-RC3 is due to a genetic or other change in the host mycelium that provides tolerance against the debilitating effects of HetV13-an1 but at the same time reduces the inherent growth rate of the mycelium. Non-uniform occurrence of virus particles within fungal mycelia has been reported by Ghabrial (1980) , but in contrast to our observation, virus-like particles were observed more frequently in old than in actively growing hyphal tips by Border et al (1972) and DeMarini et al (1977) .…”

Section: Discussioncontrasting

confidence: 99%

Phenotypic Recovery of a Heterobasidion Isolate Infected by a Debilitation-Associated Virus Is Related to Altered Host Gene Expression and Reduced Virus Titer

et al. 2021

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The fungal genus Heterobasidion includes forest pathogenic species hosting a diverse group of partitiviruses. They include the host debilitating Heterobasidion partitivirus 13 strain an1 (HetPV13-an1), which was originally observed in a slowly growing H. annosum strain 94233. In this study, a relatively fast-growing sector strain 94233-RC3 was isolated from a highly debilitated mycelial culture of 94233, and its gene expression and virus transcript quantities as well as the genomic sequence of HetPV13-an1 were examined. The sequence of HetPV13-an1 genome in 94233-RC3 was identical to that in the original 94233, and thus not the reason for the partial phenotypic recovery. According to RNA-seq analysis, the HetPV13-an1 infected 94233-RC3 transcribed eight genes differently from the partitivirus-free 94233-32D. Three of these genes were downregulated and five upregulated. The number of differentially expressed genes was considerably lower and the changes in their expression were small compared to those of the highly debilitated original strain 94233 with the exception of the most highly upregulated ones, and therefore viral effects on the host transcriptome correlated with the degree of the virus-caused debilitation. The amounts of RdRp and CP transcripts of HetPV13-an1 were considerably lower in 94233-RC3 and also in 94233 strain infected by a closely related mildly debilitating virus HetPV13-an2, suggesting that the virus titer would have a role in determining the effect of HetPV13 viruses on their hosts.

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Section: Discussioncontrasting

confidence: 99%

Phenotypic Recovery of a Heterobasidion Isolate Infected by a Debilitation-Associated Virus Is Related to Altered Host Gene Expression and Reduced Virus Titer

et al. 2021

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“…1981;Rawlinson & Buck, 1981;Pusey & Wilson, 1982). The particular dsRNA complement is generally transmitted faithfully to asexual progeny derived from mycelial fragments or spores (De Marini et al, 1977;Anagnostakis. 1981).…”

Section: Introductionmentioning

confidence: 99%

Variation for isozymes and double‐stranded RNA among isolates of Puccinia striiformis and two other cereal rusts

1985

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Gel electrophoresis was used to examine the variation in isozymes and dsRNA within and between the rust species Puccinia striiformis, P. recondita and P. hordei. No differences in isozyme phenotype were found among 29 diverse isolates of the wheat‐attacking form of P. striiformis (WYR). Smaller numbers of isolates of the barley‐attacking form (BYR) of P. recondita and of P. hordei showed similar intra‐group uniformity. There were major differences in isozyme phenotypes between the three species, while WYR and BYR differed for two of 12 enzymes. Double‐stranded RNA was detected in each species and in all 26 isolates examined. For WYR and BYR, all isolates within each group had the same or a similar phenotype. In contrast, each isolate of P. recondita and P. hordei had a unique phenotype. There were differences in dsRNA phenotypes both between the three species and between WYR and BYR. The uniformity of these rust populations and species for isozyme phenotype is contrasted with their variability in pathogenicity and with the variability in isozymes encountered in higher organisms. Uniformity may result from a feature of the biology of the rust species and populations examined, or from the relative homogeneity of the environment of biotrophic pathogens. Consistent differences in isozyme and dsRNA phenotype between the WYR and BYR isolates of P. striiformis indicate that these are two discrete populations, supporting the view that they should be recognized as f.sp. tritici and f.sp. hordei, respectively.

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Infectivity and Transmission of Fungal Viruses

Lecoq

Boissonnet-Menès

Delhotal

1979

Proceedings in Life Sciences

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Transmission of PsV-F and PsV-S Mycoviruses during Conidiogenesis of Penicillium stoloniferum

Cited by 10 publications

References 13 publications

Phenotypic Recovery of a Heterobasidion Isolate Infected by a Debilitation-Associated Virus Is Related to Altered Host Gene Expression and Reduced Virus Titer

Phenotypic Recovery of a Heterobasidion Isolate Infected by a Debilitation-Associated Virus Is Related to Altered Host Gene Expression and Reduced Virus Titer

Variation for isozymes and double‐stranded RNA among isolates of Puccinia striiformis and two other cereal rusts

Infectivity and Transmission of Fungal Viruses

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