Results 171 to 180 of about 5,716 (208)

Geminivirus disease complexes: an emerging threat

Trends in Plant Science, 2003
Small circular single-stranded DNA satellites have recently been isolated from plants infected with whitefly-transmitted monopartite begomoviruses. The satellites, named DNA beta, depend on the helper viruses for their proliferation and, in turn, are required for helper virus accumulation and symptom expression.
Shahid, Mansoor, Rob W, Briddon, Yusuf, Zafar, John, Stanley   +3 more
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Geminivirus: Indian Scenario

2016
Geminiviruses are a diverse group of plant virus which infects several crop species in India. Based on host range, insect vector, and genome organization, geminiviruses are classified into four genera: Begomovirus, Curtovirus, Topocuvirus, and Mastrevirus.
Koushlesh Ranjan, Riaz Ahmed Siddique, Mahesh Kumar Bharti, Jitender Singh   +3 more
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Role of methylation during geminivirus infection

2020
Epigenetic marks are reversible molecular changes associated to DNA or histones, and are important regulators of gene expression and genome plasticity. In plants, the covalent binding of a methyl group to cytosine or to the lysine 9 residue of H3 histone is promoting transcriptional silencing.
Noris E, Catoni M
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Geminivirus disease complexes: the threat is spreading

Trends in Plant Science, 2006
Symptom-modulating DNA satellites associated with geminiviruses have come to our attention only recently but have proven to be widespread, associated with many diseases throughout the Old World, and economically significant, particularly in developing countries.
Shahid, Mansoor, Yusuf, Zafar, Rob W, Briddon   +2 more
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Geminivirus Resistance Strategies

2019
Geminiviruses are a major threat to world agriculture, and breeding resistant crops against these viruses is one of the major challenges faced by both plant pathologists and biotechnologists. In the past, most of these strategies follow the conceptual development ranging from coat protein-mediated restricted viral propagation to the expression of ...
Abhinav Kumar, Jawaid A. Khan
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Specificity of Bipartite Geminivirus Movement Proteins

Virology, 1993
Pseudorecombinants produced by exchanging genome components (DNAs A and B) of the geminiviruses African cassava mosaic virus (ACMV) and Indian cassava mosaic virus (ICMV), ACMV, and tomato golden mosaic virus (TGMV), and TGMV and abutilon mosaic virus (AbMV) are not infectious in their common host Nicotiana benthamiana.
T, Frischmuth, S, Roberts, A, von Arnim, J, Stanley   +3 more
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Divergence and evolution of geminivirus genomes

Journal of Molecular Evolution, 1986
The nucleic acid sequences of three geminiviruses with bipartite genomes and of two viruses having a single genome component were analyzed and phylogenetic relationships deduced. Sequences in coding and noncoding regions were considered at the nucleotide and amino acid levels by several methods.
Alan J. Howarth, Robert M. Goodman
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Geminivirus: Biolistic Inoculation and Molecular Diagnosis

2008
The Geminiviridae family is a large family of plant viruses that has single-stranded DNA genomes and infects a large variety of crop species. In this chapter, we describe a biolistic inoculation protocol that has been successfully used to propagate new species of geminivirus in permissive hosts with total DNA extracted from infected plants. This allows
Anésia A, Santos, Lilian H, Florentino, Acássia B L, Pires, Elizabeth P B, Fontes   +3 more
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Strategies for the control of geminivirus diseases

Seminars in Virology, 1993
Abstract Geminiviruses are unique plant DNA viruses that frequently cause significant yield reductions in a wide range of cereal, vegetable and fibre crops. Encouraging progress has recently been made towards the control of geminiviruses that infect dicotyledonous plants.
T. Frischmuth, J. Stanley
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Distribution of Geminivirus in the Indian Subcontinent

2019
Viral diseases cause havoc on crop yield, both qualitatively and quantitatively. Geminiviridae is the largest family of plant viruses and constitutes an important group of plant pathogens with genomes of ssDNA. Geminiviruses are characterized by particle morphology of twinned incomplete icosahedra. Geminiviruses derived their name from unique structure
Bhavin S. Bhatt, Fenisha D. Chahwala, null Sangeeta, B. K. Yadav, B. Singh, Achuit K. Singh   +5 more
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