Phylogenetic Distribution of DMV-D10, an Endogenous Strain of Dahlia Mosaic Virus, in Members of Asteraceae

2020 ◽  
Vol 123 (1-2) ◽  
pp. 165
Author(s):  
Keri L. Maricle ◽  
Eric T. Gillock
Keyword(s):  
Mosaic Virus ◽  
Phylogenetic Distribution ◽  
Dahlia Mosaic Virus

scholarly journals First Report of Chili Pepper (Capsicum annuum) as a Natural Host Plant for Dahlia mosaic virus

Plant Disease ◽  
2015 ◽  
Vol 99 (6) ◽  
pp. 898-898 ◽  
Author(s):  
S. Zhang ◽  
D. Zhang ◽  
Y. Liu ◽  
J. Liu ◽  
Z. Zhao ◽  
...  
Keyword(s):  
Host Plant ◽  
Mosaic Virus ◽  
Capsicum Annuum ◽  
Natural Host ◽  
Chili Pepper ◽  
First Report ◽  
Dahlia Mosaic Virus

Dahlia mosaic virus. [Distribution map].

1984 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
North America ◽  
South America ◽  
Mosaic Virus ◽  
Geographical Distribution ◽  
Western Australia ◽  
Distribution Map ◽  
Dahlia Mosaic Virus ◽  
Virus Distribution ◽  
New Distribution

Abstract A new distribution map is provided for Dahlia mosaic virus Brierly. Hosts: on Dahlia spp. Information is given on the geographical distribution in AFRICA, Madagascar, Malawi, South Africa, Tanzania (Wallace) Zambia, Zimbabwe, ASIA, China, Taiwan, AUSTRALASIA, Australia, Western Australia, Tasmania, EUROPE, Belgium, Britain (Dennis & Foister; Moore), Czechoslovakia, Denmark, France, Germany, Greece, Italy, Romania, Sweden, NORTH AMERICA, Canada, USA, SOUTH AMERICA, Argentina, Brazil (Minas Gerais).

The Dahlia mosaic virus gene VI product N-terminal region is involved in self-association

2011 ◽  
Vol 159 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Gaurav Raikhy ◽  
Charles Krause ◽  
Scott Leisner
Keyword(s):  
Mosaic Virus ◽  
Terminal Region ◽  
Virus Gene ◽  
Dahlia Mosaic Virus ◽  
Self Association

scholarly journals First Report of Tobacco streak virus on Dahlia in the Czech Republic

Plant Disease ◽  
2008 ◽  
Vol 92 (3) ◽  
pp. 484-484 ◽  
Author(s):  
V. Mokra ◽  
B. Gotzova ◽  
V. Bezdekova ◽  
P. Dedic ◽  
J. Ptacek
Keyword(s):  
Czech Republic ◽  
Mosaic Virus ◽  
Rna Extraction ◽  
Chenopodium Quinoa ◽  
Spherical Particles ◽  
Tobacco Streak Virus ◽  
Streak Virus ◽  
Rt Pcr ◽  
The Czech Republic ◽  
Dahlia Mosaic Virus

Dahlia is an important ornamental crop in the Czech Republic where they have been grown for more than 150 years. New dahlia cultivars have been selected by Czech plant breeders. Virus diseases, including mosaic and stunt caused mostly by Dahlia mosaic virus, have been a problem. From 2003 to 2005, color breaking was observed in several dahlia cultivars of foreign and Czech origin. White stripes in blossoms were most frequently expressed in the second half of the flowering season. No symptoms are visible in flowers of white and yellow cultivars. It was difficult to characterize symptoms on leaves because most cultivars were infected simultaneously by Dahlia mosaic virus. Sap inoculations of Chenopodium quinoa produced local lesions after 5 to 7 days, followed by systemic chlorosis, necrosis of younger leaves, and death of the shoot apex, indicating possible Tobacco streak virus (TSV) infection (2). Spherical particles (25 to 30 nm) were observed in leaf-dip preparations of samples from experimentally infected C. quinoa plants and analyzed by using transmission electron microscopy. These particles became decorated when using immunoelectron microscopy with TSV IgG (Bioreba, Reinach, Switzerland and Neogen, Ayrshire, Scotland). Samples of 80 dahlia cultivars were tested for TSV infection by ELISA using commercially available kits (Bioreba and Neogen). Most of the samples were grown in a collection of dahlia cultivars of Czech and foreign origin and some were obtained from growers in the Czech Republic. Fifty six dahlia cultivars were shown to be TSV infected. ELISA also indicated a higher concentration of the virus in flowers. The identity of the virus isolated from symptomatic plants was confirmed by reverse transcription (RT)-PCR using total RNA extraction from symptomatic plants. RT-PCR (4), using a primer pair (1) derived from the coat protein gene sequence of TSV (3), was followed by electrophoresis on 1.0% agarose gels. Products of the predicted size (approximately 700 bp) were found in naturally infected dahlia plants (n = 10), systemically infected host plants C. quinoa (n = 10), and symptomatic Nicotina megalosiphon (n = 10) that scored as TSV positive by ELISA. No bands of this size were seen in negative controls. To our knowledge, this is the first detection of TSV in the Czech Republic. References: (1) A. I. Bhat et al. Arch. Virol. 147:651, 2002. (2) A. A. Brunt Plant Pathol. 17:119, 1968. (3) B. J. C. Cornelissen et al. Nucleic Acids Res.12:2427, 1984. (4) S. S. Pappu et al. J. Virol. Methods 4:9, 1993.

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