Results 11 to 20 of about 489 (127)

Vector-virus mutualism accelerates population increase of an invasive whitefly. [PDF]

open access: yesPLoS ONE, 2007
The relationships between plant viruses, their herbivore vectors and host plants can be beneficial, neutral, or antagonistic, depending on the species involved.
Min Jiu   +6 more
doaj   +2 more sources

Characterization of alphasatellites associated with monopartite begomovirus/betasatellite complexes in Yunnan, China

open access: yesVirology Journal, 2010
Background Alphasatellites are single-stranded molecules that are associated with monopartite begomovirus/betasatellite complexes. Results Alphasatellites were identified in begomovirus-infected plant samples in Yunnan, China.
Gong Huanran   +4 more
doaj   +2 more sources

Size reversion of a truncated DNAβ associated with Tobacco curly shoot virus [PDF]

open access: yesVirus Research, 2008
Our previous results demonstrated that DNAbeta associated with Tobacco curly shoot virus (TbCSV) is not necessary for infection but intensifies symptoms in some hosts. To better understand the function of DNAbeta in virus infection, a betaC1 deleted infectious clone of the TbCSV DNAbeta was constructed. Agroinoculation showed that the truncated DNAbeta
Yajuan Qian, R W Briddon, Xueping Zhou
exaly   +5 more sources

Antioxidant Enzyme Responses Induced by Whiteflies in Tobacco Plants in Defense against Aphids: Catalase May Play a Dominant Role. [PDF]

open access: yesPLoS ONE, 2016
Bemisia tabaci MEAM1 (Middle East-Asia Minor 1) feeding alters antioxidative enzyme activity in some plant species. Infestation of B. tabaci nymphs decreases Myzus persicae performance on systemic, but not local leaves of tobacco plants.
Haipeng Zhao   +4 more
doaj   +2 more sources

Optimization of prokaryotic expression of Tobacco curly shoot virus replication-associated protein gene

open access: yes浙江大学学报. 农业与生命科学版, 2007
In order to improve the expression level of Tobacco curly shoot virus (TbCSV) replication-associated protein gene (Rep) in Escherichia coli, the effects of various factors on the protein expression were studied, which included bacterial strain, culture ...
PAN Bin   +3 more
doaj   +2 more sources

A Naturally Occurring Defective DNA Satellite Associated with a Monopartite Begomovirus: Evidence for Recombination between Alphasatellite and Betasatellite

open access: yesViruses, 2013
Monopartite begomoviruses and their associated satellites form unique disease complexes that have emerged as a serious threat to agriculture worldwide.
Zhenghe Li   +4 more
doaj   +2 more sources

Defence-mediated phloem restriction of a plant virus facilitates insect transmission [PDF]

open access: yesNature Communications
Plant viruses are causal agents of devastating diseases in crops and pose a threat to food security. Viruses transmitted by phloem-feeding insects are frequently restricted to the phloem; the mechanism determining this tissue tropism and its consequences
Yuzhen Mei   +4 more
doaj   +2 more sources

Tobacco curly shoot virus C3 protein enhances viral replication and gene expression in Nicotiana benthamiana plants

open access: yesVirus Research, 2020
Geminiviruses are single-stranded DNA viruses that cause devastating diseases in many crops worldwide. The replication enhancer proteins (REn), encoded by the C3 (AC3, and AL3) ORFs of geminiviruses, have critical roles in viral DNA accumulation and symptom development in infected plants. In the current study, we have constructed an infectious clone of
Jiang Du, Mingjun Li, Hussein Ghanem
exaly   +3 more sources

Rescue of tomato yellow leaf curl virus mutants harboring heterologous iterons through in planta evolution [PDF]

open access: yesJournal of Virology
The single-stranded, circular DNA genomes of geminiviruses contain iterated motifs of five to six nucleotides, known as iterons, upstream of the replication protein (Rep) coding region.
Khwannarin Khemsom   +6 more
doaj   +2 more sources

Molecular characterization of virus-derived small RNAs in Nicotiana benthamiana plants infected with tobacco curly shoot virus and its β satellite

open access: yesVirus Research, 2019
Tobacco curly shoot virus (TbCSV) is a monopartite DNA virus of the genus Begomovirus, which causes leaf curl symptoms in tobacco and tomato. The β satellite of TbCSV (TbCSB induces more severe symptoms and enhanced virus accumulation when co-infects the host plants with TbCSV.
Gentu Wu, Jiang Du, Chenchen Jing
exaly   +3 more sources

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