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Kitaviruses: A Window to Atypical Plant Viruses Causing Nonsystemic Diseases

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Author(s):
Ramos-Gonzalez, Pedro Luis ; Arena, Gabriella Dias ; Tassi, Aline Daniele ; Chabi-Jesus, Camila ; Kitajima, Elliot Watanabe ; Freitas-Astua, Juliana
Total Authors: 6
Document type: Journal article
Source: ANNUAL REVIEW OF PHYTOPATHOLOGY; v. 61, p. 22-pg., 2023-01-01.
Abstract

Kitaviridae is a family of plant-infecting viruses that have multiple positive-sense, single-stranded RNA genomic segments. Kitaviruses are assigned into the genera Cilevirus, Higrevirus, and Blunervirus, mainly on the basis of the diversity of their genomic organization. Cell-to-cell movement of most kitaviruses is provided by the 30K family of proteins or the binary movement block, considered an alternative movement module among plant viruses. Kitaviruses stand out for producing conspicuously unusual locally restricted infections and showing deficient or nonsystemic movement likely resulting from incompatible or suboptimal interactions with their hosts.Transmission of kitaviruses is mediated by mites of many species of the genus Brevipalpus and at least one species of eriophyids. Kitavirus genomes encode numerous orphan open reading frames but RNA-dependent RNA polymerase and the transmembrane helix-containing protein, generically called SP24, typify a close phylogenetic link with arthropod viruses. Kitaviruses infect a large range of host plants and cause diseases of economic concern in crops such as citrus, tomato, passion fruit, tea, and blueberry. (AU)

FAPESP's process: 17/50222-0 - Understanding the molecular biology and ecology of plant-virus-vector relationships: towards sustainable, integrated virus management strategies
Grantee:Juliana de Freitas Astúa
Support Opportunities: Regular Research Grants
FAPESP's process: 20/15413-2 - Putative glycoproteins from Brevipalpus mite- transmitted viruses and their role in the formation of the viral structure
Grantee:Camila Chabi de Jesus
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 19/02137-0 - P61 from cilevirus: biochemical and functional characterization
Grantee:Gabriella Dias Arena
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/12252-8 - Interaction between citrus leprosis C cilevirus and clerodendrum chlorotic spot dichorhavirus with their vector Brevipalpus yothersi and the possible implications in the management of cile- and dichorhaviruses
Grantee:Aline Daniele Tassi
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 17/50334-3 - Institutional research development plan (PDIp): modernization and adequacy of strategic multi-user units of the Instituto Biológico
Grantee:Ana Eugênia de Carvalho Campos
Support Opportunities: Research Grants - State Research Institutes Modernization Program
FAPESP's process: 19/25078-9 - Genomics and trascriptome of virus-vector-host plant relationship in the pathosytem of Brevipalpus transmitted viruses; systematic and evolution of Brevipalpus mites and their endosymbionts; new strategies to manage citrus Leprosis in the S. Paulo State
Grantee:Elliot Watanabe Kitajima
Support Opportunities: Research Projects - Thematic Grants