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Two New Putative Plant Viruses from Wood Metagenomics Analysis of an Esca Diseased Vineyard

Council for Agricultural Research and Economics—Research Centre for Viticulture and Enology CREA-VE, Via XXVIII Aprile 26, 31015 Conegliano (TV), Italy
National Research Council of Italy—Institute for Sustainable Plant Protection CNR-IPSP, Strada delle Cacce 73, 10135 Torino, Italy
Authors to whom correspondence should be addressed.
Plants 2020, 9(7), 835;
Received: 18 May 2020 / Revised: 2 July 2020 / Accepted: 2 July 2020 / Published: 3 July 2020
(This article belongs to the Special Issue Diagnosis and Control of Plant Viral Diseases)
The concept of plant as a holobiont is now spreading among the scientific community and the importance to study plant-associated microorganisms is becoming more and more necessary. Along with bacteria and fungi, also viruses can play important roles during the holobiont-environment interactions. In grapevine, viruses are studied mainly as pathological agents, and many species (more than 80) are known to be able to replicate inside its tissues. In this study two new viral species associated with grape wood tissues are presented, one belongs to the Potyviridae family and one to the Bunyavirales order. Due to the ability of potyviruses to enhance heterologous virus replication, it will be important to assess the presence of such a virus in the grapevine population to understand its ecological role. Furthermore, the association of the cogu-like virus with esca symptomatic samples opens new questions and the necessity of a more detailed characterization of this virus. View Full-Text
Keywords: grapevine; potyvirus; bunyavirus; coguvirus; esca disease grapevine; potyvirus; bunyavirus; coguvirus; esca disease
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MDPI and ACS Style

Bertazzon, N.; Chitarra, W.; Angelini, E.; Nerva, L. Two New Putative Plant Viruses from Wood Metagenomics Analysis of an Esca Diseased Vineyard. Plants 2020, 9, 835.

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