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
Citations
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Journal ArticleDOI
Dynamics of a geminivirus-encoded pre-coat protein and host RNA-dependent RNA polymerase 1 in regulating symptom recovery in tobacco
Saumik Basu,Nirbhay Kumar Kushwaha,Ashish Kumar Singh,Pranav Pankaj Sahu,R. Vinoth Kumar,Supriya Chakraborty +5 more
TL;DR: ToLCNDV-AV2 is essential for repression of - antiviral silencing mediated by RNA-dependent RNA polymerase 1 and is responsible for contrasting symptom development in Nicotiana species infected with different geminiviruses.
Journal ArticleDOI
Arabidopsis RNA Polymerases IV and V Are Required To Establish H3K9 Methylation, but Not Cytosine Methylation, on Geminivirus Chromatin
TL;DR: The geminivirus Beet curly top virus was used as a model to examine the roles of Pol IV and Pol V in establishing repressive viral chromatin methylation and it was found that both are needed to amplify, but not to establish, DNA methylation.
Journal ArticleDOI
Tomato plant cell death induced by inhibition of HSP90 is alleviated by Tomato yellow leaf curl virus infection.
TL;DR: It is shown that the chaperone HSP90 and its co-chaperone SGT1 (suppressor of the G2 allele of Skp1) are involved in the establishment of TYLCV infection, which leads to the accumulation of damaged ubiquitinated proteins and to a cell death phenotype.
Book ChapterDOI
Begomoviruses and Their Satellites Occurring in India: Distribution, Diversity and Pathogenesis
V. G. Malathi,P. Renukadevi,Supriya Chakraborty,K. K. Biswas,Anirban Roy,P. N. Sivalingam,Venkataravanappa Venkataravanappa,Bikash Mandal +7 more
TL;DR: In this chapter, research work on identification and characterization of begomoviruses in diverse crops in India is presented and Geographic distribution, phylogenetic relationship, infectivities of cloned genome components, recombination, replication events, suppression of RNAi silencing, viral gene funtions as pathogenicity determinants and association of satellites and their role in disease development with reference to the Indian begomviruses are discussed.
Journal ArticleDOI
The Involvement of Heat Shock Proteins in the Establishment of Tomato Yellow Leaf Curl Virus Infection.
Rena Gorovits,Henryk Czosnek +1 more
TL;DR: The efficiency of virus acquisition by whiteflies depends on the functionality of both plant chaperones and their cross-talk with other protein mechanisms controlling virus-induced aggregation, especially when HSP70 is inhibited and HSP90 is downregulated.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.