Tobacco Necrosis Virus and its Satellite Virus

Nature ◽  
1967 ◽  
Vol 214 (5084) ◽  
pp. 178-178 ◽  
Author(s):  
B. KASSANIS
Keyword(s):  
Tobacco Necrosis Virus ◽  
Necrosis Virus ◽  
Satellite Virus

Stipple streak disease of French bean caused by a tobacco necrosis virus in Queensland

1968 ◽  
Vol 19 (5) ◽  
pp. 731 ◽  
Author(s):  
GM Behncken
Keyword(s):  
French Bean ◽  
Tobacco Necrosis Virus ◽  
Serological Evidence ◽  
Necrosis Virus ◽  
Leaf Vein ◽  
Satellite Virus ◽  
Vein Necrosis ◽  
Stem Necrosis ◽  
Olpidium Brassicae

A disease of beans in the Nambour district of Queensland has been shown to be stipple streak disease caused by a tobacco necrosis virus. Symptoms include leaf vein necrosis, stem necrosis, and occasionally necrotic lesions on the pods. In glasshouse tests symptoms developed more rapidly, and were more severe, at temperatures of 80–88°F than at 62–70°. The virus was readily transmitted by zoospores of a lettuce isolate of the fungus Olpidium brassicae (Wor.) Dang. Serological evidence is presented which indicates that the virus is an "A" serotype strain of tobacco necrosis virus. No evidence for the presence of an associated satellite virus was found.

scholarly journals Regioselective Base-induced Condensations of Acrylic Acid Derivatives

1999 ◽  
Vol 23 (3) ◽  
pp. 174-175
Author(s):  
E. Abdel-Ghani
Keyword(s):  
Carboxylic Acid ◽  
Acrylic Acid ◽  
Dicarboxylic Acid ◽  
Ethyl Acetoacetate ◽  
Tobacco Necrosis Virus ◽  
Necrosis Virus ◽  
Antiviral Activities

The orientation of cyclization of the reaction of methyl aroylacrylate (1) and aroylacrylic acid (8) with ethyl acetoacetate and/or thiourea leading to the formation of 4-aroylmethylcyclopentane-1,3-dione (2) 5-aryl-3-oxocyclohexene-1,2-dicarboxylic acid (9), 2-imino-5-aroylmethylthiazolidin-4-one (11) and 6-aryl-2-sulfonylpyrimidine-4-carboxylic acid (14) depends on the medium employed; some compounds show moderate antiviral activities against tobacco necrosis virus.

scholarly journals The 3' untranslated region of satellite tobacco necrosis virus RNA stimulates translation in vitro.

1993 ◽  
Vol 13 (6) ◽  
pp. 3340-3349 ◽  
Author(s):  
X Danthinne ◽  
J Seurinck ◽  
F Meulewaeter ◽  
M Van Montagu ◽  
M Cornelissen
Keyword(s):  
Tobacco Necrosis Virus ◽  
Translation System ◽  
Coding Region ◽  
Necrosis Virus ◽  
Untranslated Sequence ◽  
Virus Rna ◽  
Free Translation ◽  
Order Of Magnitude ◽  
A Cell

The RNA of satellite tobacco necrosis virus (STNV) is a monocistronic messenger that lacks both a 5' cap structure and a 3' poly(A) tail. We show that in a cell-free translation system derived from wheat germ, STNV RNA lacking the 600-nucleotide trailer is translated an order of magnitude less efficiently than full-size RNA. Deletion analyses positioned the translational enhancer domain (TED) within a conserved hairpin structure immediately downstream from the coat protein cistron. TED enhances translation when fused to a heterologous mRNA, but the level of enhancement depends on the nature of the 5' untranslated sequence and is maximal in combination with the STNV leader. The STNV leader and TED have two regions of complementarity. One of the complementary regions in TED resembles picornavirus box A, which is involved in cap-independent translation but which is located upstream of the coding region.

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