scholarly journals Some Properties of a Virus From Galinsoga Parviflora

1970 ◽  
Vol 23 (2) ◽  
pp. 497 ◽  
Author(s):  
GM Behncken
Keyword(s):  
Mung Bean ◽  
Tobacco Necrosis Virus ◽  
Weed Species ◽  
Necrosis Virus ◽  
Serological Reaction ◽  
French Beans ◽  
South Eastern

During an investigation of stipple streak disease of French beans near Nambour in south-eastern Queensland (Behncken 1968), the roots of a number of weed species were indexed for tobacco necrosis virus (TNV). A virus was regularly isolated from the roots of Galinsoga parvijlora Cav., an annual commonly called potato weed. It was distinguished from TNV on the basis of differences in host reactions, absence of any serological reaction with TNV antisera, and its failure to be transmitted to the roots of seedlings of mung bean (Phaseolu8 aureU8 Roxb.) by zoospores of the fungus Olpidium bra88icae (Wor.) Dang.

Host range and properties of tobacco stunt virus

1975 ◽  
Vol 53 (21) ◽  
pp. 2425-2434 ◽  
Author(s):  
C. Hiruki
Keyword(s):  
Host Range ◽  
Comparative Studies ◽  
Phosphate Buffer ◽  
Host Plants ◽  
Thermal Inactivation ◽  
Cross Protection ◽  
Tobacco Necrosis Virus ◽  
Necrosis Virus ◽  
Serological Reaction ◽  
Thermal Inactivation Point

Tobacco stunt virus (TSV) was mechanically transmitted to 41 species in 9 families: i.e., Aizoaceae, Amaranthaceae, Apocynaceae, Caryophyllaceae, Chenopodiaceae, Cucurbitaceae, Leguminosae, Pedaliaceae, and Solanaceae. TSV remained infective for 60 h in 0.001 M 1-phenylthiosemicarbazide (1-PTC) in 0.01 M phosphate buffer, pH 6.8, but was infective only immediately after extraction in phosphate buffer. TSV in 1-PTC-phosphate buffer had a thermal inactivation point between 75 and 80 °C and a dilution end point between 10−2 and 10−3. Comparative studies made on reaction of host plants, serological reaction, and cross protection indicate that TSV is unrelated to a California isolate of tobacco necrosis virus.

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.

Translation of satellite tobacco necrosis virus ribonucleic acid. II. Initiation of in vitro translation in procaryotic and eucaryotic systems

Biochemistry ◽  
1972 ◽  
Vol 11 (11) ◽  
pp. 2014-2019 ◽  
Author(s):  
Ronald E. Lundquist ◽  
Jerome M. Lazar ◽  
William H. Klein ◽  
John M. Clark
Keyword(s):  
Ribonucleic Acid ◽  
In Vitro Translation ◽  
Tobacco Necrosis Virus ◽  
Necrosis Virus
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