scholarly journals Adaptation from whitefly to leafhopper transmission of an autonomously replicating nanovirus-like DNA component associated with ageratum yellow vein disease

2002 ◽  
Vol 83 (4) ◽  
pp. 907-913 ◽  
Author(s):  
Keith Saunders ◽  
Ian D. Bedford ◽  
John Stanley
Keyword(s):  
Yellow Vein ◽  
Bipartite Begomovirus ◽  
Systemic Movement ◽  
Beet Curly Top Virus ◽  
Circulifer Tenellus ◽  
Ageratum Yellow Vein Virus ◽  
Systemic Spread ◽  
Yellow Dwarf Virus ◽  
Dna 2 ◽  
Vein Disease

Ageratum yellow vein disease is caused by the whitefly-transmitted monopartite begomovirus Ageratum yellow vein virus and a DNA β satellite component. Naturally occurring symptomatic plants also contain an autonomously replicating nanovirus-like DNA 1 component that relies on the begomovirus and DNA β for systemic spread and whitefly transmission but is not required for maintenance of the disease. Here, we show that systemic movement of DNA 1 occurs in Nicotiana benthamiana when co-inoculated with the bipartite begomovirus Tomato golden mosaic virus and the curtovirus Beet curly top virus (BCTV), but not with the mastrevirus Bean yellow dwarf virus. BCTV also mediates the systemic movement of DNA 1 in sugar beet, and the nanovirus-like component is transmitted between plants by the BCTV leafhopper vector Circulifer tenellus. We also describe a second nanovirus-like component, referred to as DNA 2, that has only 47% nucleotide sequence identity with DNA 1. The diversity and adaptation of nanovirus components are discussed.

scholarly journals Characterization of the Cryptic AV3 Promoter of Ageratum Yellow Vein Virus in Prokaryotic and Eukaryotic Systems

PLoS ONE ◽  
2014 ◽  
Vol 9 (9) ◽  
pp. e108608 ◽  
Author(s):  
Wei-Chen Wang ◽  
Chia-Ying Wu ◽  
Yi-Chin Lai ◽  
Na-Sheng Lin ◽  
Yau-Heiu Hsu ◽  
...  
Keyword(s):  
Yellow Vein ◽  
Ageratum Yellow Vein Virus

scholarly journals Epidemiology of Blackberry yellow vein associated virus

Plant Disease ◽  
2013 ◽  
Vol 97 (10) ◽  
pp. 1352-1357 ◽  
Author(s):  
Bindu Poudel ◽  
William M. Wintermantel ◽  
Arturo A. Cortez ◽  
Thien Ho ◽  
Archana Khadgi ◽  
...  
Keyword(s):  
The United States ◽  
Yellow Vein ◽  
Chain Reaction ◽  
Efficient Detection ◽  
Blackberry Yellow Vein Disease ◽  
Polymerase Chain ◽  
Multiple Levels ◽  
And Control ◽  
Trialeurodes Abutilonea ◽  
Vein Disease

Blackberry yellow vein disease is one of the most important diseases of blackberry in the United States. Several viruses are found associated with the symptomology but Blackberry yellow vein associated virus (BYVaV) appears to be the most prevalent of all, leading to the need for a better understanding of its epidemiology. Efficient detection protocols were developed using end-point and quantitative reverse-transcription polymerase chain reaction. A multi-state survey was performed on wild and cultivated blackberry to assess the geographical distribution of the virus. Two whitefly species, Trialeurodes abutilonea and T. vaporariorum, were identified as vectors and 25 plant species were tested as potential BYVaV hosts. The information obtained in this study can be used at multiple levels to better understand and control blackberry yellow vein disease.

scholarly journals Rapid screening of RNA silencing suppressors by using a recombinant virus derived from beet necrotic yellow vein virus

2009 ◽  
Vol 90 (10) ◽  
pp. 2536-2541 ◽  
Author(s):  
H. Guilley ◽  
D. Bortolamiol ◽  
G. Jonard ◽  
S. Bouzoubaa ◽  
V. Ziegler-Graff
Keyword(s):  
Rna Silencing ◽  
Plant Defence ◽  
Plant Viruses ◽  
Yellow Vein ◽  
Rapid Screening ◽  
Silencing Suppressor ◽  
Defence Mechanisms ◽  
Simple Method ◽  
Yellow Dwarf Virus ◽  
Plant Defence Mechanisms

To counteract plant defence mechanisms, plant viruses have evolved to encode RNA silencing suppressor (RSS) proteins. These proteins can be identified by a range of silencing suppressor assays. Here, we describe a simple method using beet necrotic yellow vein virus (BNYVV) that allows a rapid screening of RSS activity. The viral inoculum consisted of BNYVV RNA1, which encodes proteins involved in viral replication, and two BNYVV-derived replicons: rep3–P30, which expresses the movement protein P30 of tobacco mosaic virus, and rep5–X, which allows the expression of a putative RSS (X). This approach has been validated through the use of several known RSSs. Two potential candidates have been tested and we show that, in our system, the P13 protein of burdock mottle virus displays RSS activity while the P0 protein of cereal yellow dwarf virus-RPV does not.

First report of leaf curling and yellowing caused by ageratum yellow vein virus in Phaseolus vulgaris in Okinawa Prefecture, Japan

2020 ◽  
Vol 86 (3) ◽  
pp. 227-232
Author(s):  
Yasuhiro Tomitaka ◽  
Ayako Yamaguchi ◽  
Sayumi Tanaka ◽  
Shinji Kawano ◽  
Yuna Tamayose ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Yellow Vein ◽  
First Report ◽  
Leaf Curling ◽  
Ageratum Yellow Vein Virus ◽  
Okinawa Prefecture

scholarly journals First report of ageratum yellow vein virus infecting tomato in Vietnam

2019 ◽  
Vol 101 (4) ◽  
pp. 1267-1267
Author(s):  
Hoseong Choi ◽  
Yeonhwa Jo ◽  
Phu-Tri Tran ◽  
Kook-Hyung Kim
Keyword(s):  
Yellow Vein ◽  
First Report ◽  
Ageratum Yellow Vein Virus

scholarly journals Prediction of Early Season Beet Leafhopper Populations in Southern New Mexico

2020 ◽  
Vol 21 (1) ◽  
pp. 71-76
Author(s):  
Erik Lehnhoff ◽  
Rebecca Creamer
Keyword(s):  
New Mexico ◽  
Weed Management ◽  
Broad Host Range ◽  
Insect Vector ◽  
Early Season ◽  
Beet Leafhopper ◽  
Beet Curly Top Virus ◽  
Circulifer Tenellus ◽  
Sisymbrium Irio ◽  
The Relationship

Curly top is an important widespread disease in semiarid regions that can be caused by several Curtovirus and Becurtovirus species. The strains of beet curly top virus (BCTV) have been some of the most widely reported to be associated with curly top. The viruses causing curly top are phloem limited and transmitted by the beet leafhopper (BLH), Circulifer tenellus Baker (Hemiptera: Cicadellidae). The BLH can also transmit other important pathogens such as phytoplasmas. Both the virus and insect vector have a broad host range of crops and weeds, including the winter annual weed London rocket (Sisymbrium irio L.). Prior prediction of disease would allow growers a window of opportunity to make informed management choices. A prediction model of BLH abundance was developed for southern New Mexico based on fall precipitation, which corresponds with London rocket emergence, and BLH sticky trap catch data for 2001 to 2018. Regression analyses showed positive associations between BLH numbers and October + November rainfall (P < 0.001) for two areas within southern New Mexico. A third area, where good weed management was used, had lower BLH numbers, and the relationship with precipitation was not significant (P = 0.190). Cumulative-season BLH abundance was correlated with BLH abundance in late April (r = 0.43) and late May (r = 0.56), indicating that early season knowledge of BLH abundance is useful for planning later season management. Although models based on October + November precipitation are good predictors of BLH abundance through June, they may not predict year-long BLH abundance because other environmental and biological factors contribute to subsequent BLH success and movement.

Economic injury levels for the potato yellow vein disease and its vector, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae), affecting potato crops in the Andes

2019 ◽  
Vol 119 ◽  
pp. 52-58 ◽  
Author(s):  
Diego F. Rincon ◽  
Diego F. Vasquez ◽  
Hugo Fernando Rivera-Trujillo ◽  
Carlos Beltrán ◽  
Felipe Borrero-Echeverry
Keyword(s):  
Trialeurodes Vaporariorum ◽  
Yellow Vein ◽  
The Andes ◽  
Economic Injury ◽  
Potato Crops ◽  
Vein Disease
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