Journal ArticleDOI
Geminiviruses: masters at redirecting and reprogramming plant processes
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TLDR
This Review describes the current knowledge of how geminiviruses interact with their plant hosts and the functional consequences of these interactions.Abstract:
The family Geminiviridae is one of the largest and most important families of plant viruses. The small, single-stranded DNA genomes of geminiviruses encode 5-7 proteins that redirect host machineries and processes to establish a productive infection. These interactions reprogramme plant cell cycle and transcriptional controls, inhibit cell death pathways, interfere with cell signalling and protein turnover, and suppress defence pathways. This Review describes our current knowledge of how geminiviruses interact with their plant hosts and the functional consequences of these interactions.read more
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A peptidoglycan recognition protein acts in whitefly (Bemisia tabaci) immunity and involves in Begomovirus acquisition.
TL;DR: A P GRP gene, BtPGRP, encodes a PGRP from the whitefly Bemisia tabaci (MEAM1) that binds and kills bacteria in vitro, and provides insight into how the white fly immunity acts in complex mechanisms of Begomovirus transmission among plants.
Journal ArticleDOI
V2 from a curtovirus is a suppressor of post-transcriptional gene silencing.
Ana P. Luna,Edgar A. Rodríguez-Negrete,Edgar A. Rodríguez-Negrete,Gabriel Morilla,Liping Wang,Rosa Lozano-Durán,Araceli G. Castillo,Eduardo R. Bejarano +7 more
TL;DR: It is shown here that, despite the lack of sequence homology with its begomoviral counterpart, BCTV V2 acts as a potent PTGS suppressor, possibly by impairing the RDR6 (RNA-dependent RNA polymerase 6)/suppressor of gene silencing 3 (SGS3) pathway.
Journal ArticleDOI
Tomato yellow leaf curl virus: No evidence for replication in the insect vector Bemisia tabaci.
Sonia Sánchez-Campos,Edgar A. Rodríguez-Negrete,Lucia Cruzado,Ana Grande-Pérez,Eduardo R. Bejarano,Jesús Navas-Castillo,Enrique Moriones +6 more
TL;DR: Time-course experiments to quantify complementary and virion sense viral nucleic acid accumulation within B. tabaci using a recently implemented two step qPCR procedure revealed that viral DNA quantities did not increase for time points up to 96 hours after acquisition of the virus.
Journal ArticleDOI
Differential response of cassava genotypes to infection by cassava mosaic geminiviruses
Paul Kuria,Muhammad Ilyas,Elijah Ateka,Douglas W. Miano,Justus M. Onguso,James C. Carrington,Nigel J. Taylor +6 more
TL;DR: Cassava genotypes respond differently to infection by cassava mosaic geminiviruses, and VsRNAs heterogeneously map the entire virus genome in both polarities.
Journal ArticleDOI
Biological characterization of Tomato leaf curl New Delhi virus from Spain
TL;DR: New full-length sequences from zucchini squash and tomato indicated a high genetic homogeneity (>99% sequence identity) in the ToLCNDV populations in Spain, pointing to a single recent introduction event.
References
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Journal ArticleDOI
Top 10 plant viruses in molecular plant pathology
Karen-Beth G. Scholthof,Scott Adkins,Henryk Czosnek,Peter Palukaitis,Emmanuel Jacquot,Thomas Hohn,Barbara Hohn,Keith Saunders,Thierry Candresse,Paul Ahlquist,Cynthia Hemenway,Gary D. Foster +11 more
TL;DR: A short review on each virus of the Top 10 list and its importance is presented, with the intent of initiating discussion and debate amongst the plant virology community, as well as laying down a benchmark, as it will be interesting to see in future years how perceptions change and which viruses enter and leave the Top10.
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Geminiviruses: Models for Plant DNA Replication, Transcription, and Cell Cycle Regulation
TL;DR: The goal of this review is to summarize recent research addressing geminivirus DNA replication and its integration with transcriptional and cell cycle regulatory processes.
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Emerging Virus Diseases Transmitted by Whiteflies
TL;DR: Factors driving the emergence and establishment of whitefly-transmitted diseases include genetic changes in the virus through mutation and recombination, changes inThe vector populations coupled with polyphagy of the main vector, Bemisia tabaci, and long distance traffic of plant material or vector insects due to trade of vegetables and ornamental plants.
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Exploiting chinks in the plant's armor: evolution and emergence of geminiviruses
TL;DR: The geminiviruses represent a family of DNA viruses that has circumvented these impediments to emerge as one of the most successful viral pathogens, causing severe economic losses to agricultural production worldwide.
Journal ArticleDOI
Global analysis of Arabidopsis gene expression uncovers a complex array of changes impacting pathogen response and cell cycle during geminivirus infection
J. T. Ascencio-Ibanez,Rosangela Sozzani,Tae-Jin Lee,Tzu-Ming Chu,Russell D. Wolfinger,Rino Cella,Linda Hanley-Bowdoin +6 more
TL;DR: Geminiviruses modulate plant cell cycle status by differentially impacting the CYCD/retinoblastoma-related protein/E2F regulatory network and facilitating progression into the endocycle.