Uncovering a Complex Virome Associated with the Cacao Pathogens Ceratocystis cacaofunesta and Ceratocystis fimbriata

Espinal, Roy Bogardid Ardón; Santana, Sabrina Ferreira de; Santos, Vinícius Castro; Lizardo, Gabriela Nicolle Ramos; Silva, Raner José Santana; Corrêa, Ronan Xavier; Loguercio, Leandro Lopes; Góes-Neto, Aristóteles; Pirovani, Carlos Priminho; Fonseca, Paula Luize Camargos; Aguiar, Eric Roberto Guimarães Rocha

doi:10.3390/pathogens12020287

Cited by 8 publications

(1 citation statement)

References 129 publications

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“…The complex virome associated with the cocoa pathogens Ceratocystis cacaofunesta and Ceratocystis fimbriata [28] Lucas Antônio Stempkowski (UESC, BA) Genetic variability and population structure of wheat stripe mosaic virus [29] Alex Moura da Silva (UFRJ, RJ) A case report of the emergence of cotton blue disease resistance-breaking viral isolates in a greenhouse in Brazil [30] Anderson Carvalho Vieira (UESC, BA)…”

Section: First Author and Institution Titlementioning

confidence: 99%

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

Vaslin

Silva

Leal

et al. 2023

Viruses

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Each year, the Brazilian Society for Virology promotes a national meeting during the second semester of the year. In October 2022, the 33rd meeting took place at Arraial da Ajuda, Porto Seguro, Bahia, in-person:.this was the first in-person meeting since 2019, as the 2020 and 2021 events occurred online due to the issues imposed by COVID-19. It was a great pleasure for the whole audience to return to an in-person event, which certainly improved the interactions between the attendees in all ways. As usual, the meeting involved massive participation of undergraduate, graduate, and postdoc students, and several noteworthy international researchers were present. During five afternoons and evenings, attendees could discuss and learn about the most recent data presented by distinguished scientists from Brazil and other countries. In addition, young virology researchers from all levels could present their latest results as oral presentations and posters. The meeting covered all virology areas, with conferences and roundtables about human, veterinary, fundamental, environmental, invertebrate, and plant virology. The costs associated with attending the in-person event caused a slight reduction in the number of attendees compared to the two online events. However, even with this issue, the attendance was impressive. The meeting successfully achieved its most important goals: inspiring young and senior scientists and discussing high-quality, up-to-date virology research.

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Section: First Author and Institution Titlementioning

confidence: 99%

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

Vaslin

Silva

Leal

et al. 2023

Viruses

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Identification and characterization of mycoviruses in transcriptomes from the fungal family ceratocystidaceae

Hough,

Wingfield,

Read

2024

Virus Genes

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Mycoviruses pervade the fungal kingdom, yet their diversity within various fungal families and genera remains largely unexplored. In this study, 10 publicly available fungal transcriptomes from Ceratocystidaceae were analyzed for the presence of mycoviruses. Despite mycovirus associations being known in only four members of this family, our investigation unveiled the discovery of six novel mycoviruses. The majority of these mycoviruses are composed of positive sense single stranded RNA and are putatively assigned to the viral family Mitoviridae (with tentative classification into the genera Unuamitovirus and Duamitovirus). The double stranded RNA viruses, however, were associated with the family Totiviridae (with tentative classification into the genus Victorivirus). This study also revealed the discovery of an identical unuamitovirus in the fungal species Thielaviopsis ethacetica and Thielaviopsis paradoxa. This discovery was notable as these fungal isolates originated from distinct geographical locations, highlighting potential implications for the transmission of this mitovirus. Moreover, this investigation significantly expands the known host range for mycoviruses in this family, marking the initial identification of mycoviruses within Ceratocystis platani, Thielaviopsis paradoxa, Thielaviopsis ethacetica, and Huntiella omanensis. Future research should focus on determining the effects that these mycoviruses might have on their fungal hosts.

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Forest Tree Virome as a Source of Tree Diseases and Biological Control Agents

Vainio,

Rumbou,

Diez

et al. 2024

Curr. For. Rep.

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Purpose of Review The collective virome of forest trees can be considered to include not only plant viruses, but also viral communities harbored by all tree-associated organisms. In this review, we will concentrate on reviewing recent developments in the two fields of forest tree virology that have received the most research input during the last 5 years: (1) current knowledge of virus diseases affecting forest trees and their causal agents and (2) fungal viruses (mycoviruses) and properties that are required for utilizing them for biocontrol purposes. Recent Findings The discovery of plant and mycoviruses has been revolutionized during the last few years due to high-throughput sequencing (HTS). This has altered our view of virus diversity and prevalence, but also their host ranges, transmission routes, and host effects. Utilization of HTS has greatly expanded our knowledge of plant virus diversity and disease etiology in forest trees and revealed the commonness of cross-kingdom transmission events between fungi, oomycetes, plants, and arthropods. Research on mycoviruses has also identified several new mycoviruses that restrict the growth or virulence of forest pathogenic fungi. Summary Gaining knowledge of the collective virome of forest ecosystems is essential not only for understanding virus evolution and diversity but also for improving our understanding on virus impacts, and our ability for biocontrol-based and environmentally friendly management of viral and fungal diseases that affect economically important plants and beneficial insects, and for preventing possible disease outbreaks in the future. Virus infections play a central role in plant health, but viral symptoms on forest trees remain often unrecognized and may be confused with other biotic or abiotic damages. However, recent studies have revealed previously unknown viruses as causes of forest tree symptoms and suggest that viruses are responsible for far greater economic losses than recognized earlier. However, many knowledge gaps still need to be filled, particularly on the diversity of viruses that infect different species of forest trees, their irregular distribution within the plant, their mode of transmission, epidemiology and choice of hosts also regarding crop plants, their effect on the metabolism of their host tree, and their interaction with other microorganisms. Mycovirus research has already deciphered detailed information on many critical properties that affect utilizing them for biocontrol purposes. Still, more knowledge is needed concerning mycoviral transmission mode and stability in field conditions, the level of host tolerance against mycoviral infection, and the occurrence of interspecies mycovirus transmission in nature, and safety issues related to these topics.

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Uncovering a Complex Virome Associated with the Cacao Pathogens Ceratocystis cacaofunesta and Ceratocystis fimbriata

Cited by 8 publications

References 129 publications

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

33rd Brazilian Society for Virology (SBV) 2022 Annual Meeting

Identification and characterization of mycoviruses in transcriptomes from the fungal family ceratocystidaceae

Forest Tree Virome as a Source of Tree Diseases and Biological Control Agents

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