Anti-Tobacco Mosaic Virus Isoindolin-1-ones from the Stems of Nicotiana tabacum

Heterocycles ◽  
2021 ◽  
Vol 102 (6) ◽  
pp. 1167
Author(s):  
Feng-Xian Yang ◽  
Tao Zhou ◽  
Jian-Duo Zhang ◽  
Xin Liu ◽  
Li Xu ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus

Tobacco Mosaic Virus-Infected Tissue

1985 ◽  
Vol 43 ◽  
pp. 510-511
Author(s):  
Egbert W. Henry
Keyword(s):  
Nicotiana Tabacum ◽  
Tobacco Mosaic Virus ◽  
Chlorogenic Acid ◽  
Mosaic Virus ◽  
Host Resistance ◽  
Oxidative Metabolism ◽  
Leaf Tissue ◽  
Vein Clearing ◽  
Basal Septum ◽  
Concentration Levels

Tobacco mosaic virus (TMV) infection has been studied in several investigations of Nicotiana tabacum leaf tissue. Earlier studies have suggested that TMV infection does not have precise infective selectivity vs. specific types of tissues. Also, such tissue conditions as vein banding, vein clearing, liquification and suberization may result from causes other than direct TMV infection. At the present time, it is thought that the plasmodesmata, ectodesmata and perhaps the plasmodesmata of the basal septum may represent the actual or more precise sites of TMV infection.TMV infection has been implicated in elevated levels of oxidative metabolism; also, TMV infection may have a major role in host resistance vs. concentration levels of phenolic-type enzymes. Therefore, enzymes such as polyphenol oxidase, peroxidase and phenylalamine ammonia-lyase may show an increase in activity in response to TMV infection. It has been reported that TMV infection may cause a decrease in o-dihydric phenols (chlorogenic acid) in some tissues.

scholarly journals A New Phenolic Compound from the Leaves of Nicotiana tabacum and its Anti-tobacco Mosaic Virus Activities

2014 ◽  
Vol 26 (18) ◽  
pp. 6299-6300
Author(s):  
Yong-Kuan Chen ◽  
Chun-Yan Wu ◽  
Li-Xin Yang ◽  
Ming-Ming Miao ◽  
Guang-Yu Yang ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Phenolic Compound

ChemInform Abstract: Flavonoids (I) from the Leaves of Nicotiana tabacum and Their anti-Tobacco Mosaic Virus Activity.

ChemInform ◽  
2015 ◽  
Vol 46 (20) ◽  
pp. no-no
Author(s):  
Zhengyin Wang ◽  
Yinke Li ◽  
Yingliang Zhao ◽  
Nengjun Xiang ◽  
Liu Yang ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Virus Activity

Furan-2-carboxylic Acids from the Leaves of Nicotiana tabacum and Their Anti-Tobacco Mosaic Virus Activities

Heterocycles ◽  
2016 ◽  
Vol 92 (6) ◽  
pp. 1095 ◽  
Author(s):  
Guang-Yu Yang ◽  
Jian-Jun Xia ◽  
Chun-Bo Liu ◽  
Xin-Meng Xu ◽  
Qin-Peng Shen ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Carboxylic Acids

scholarly journals Enhanced Glutathione Metabolism Is Correlated with Sulfur-Induced Resistance in Tobacco mosaic virus–Infected Genetically Susceptible Nicotiana tabacum Plants

2010 ◽  
Vol 23 (11) ◽  
pp. 1448-1459 ◽  
Author(s):  
Kerstin Höller ◽  
Lóránt Király ◽  
András Künstler ◽  
Maria Müller ◽  
Gábor Gullner ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Induced Resistance ◽  
Marker Gene ◽  
General Mechanism ◽  
Glutathione Metabolism ◽  
Tobacco Plants ◽  
Glutathione Biosynthesis

Sulfur-induced resistance, also known as sulfur-enhanced defense (SIR/SED) was investigated in Nicotiana tabacum cv. Samsun nn during compatible interaction with Tobacco mosaic virus (TMV) in correlation with glutathione metabolism. To evaluate the influence of sulfur nutritional status on virus infection, tobacco plants were treated with nutrient solutions containing either sufficient sulfate (+S) or no sulfate (−S). Sufficient sulfate supply resulted in a suppressed and delayed symptom development and diminished virus accumulation over a period of 14 days after inoculation as compared with −S conditions. Expression of the defense marker gene PR-1a was markedly upregulated in sulfate-treated plants during the first day after TMV inoculation. The occurrence of SIR/SED correlated with a higher level of activity of sulfate assimilation, cysteine, and glutathione metabolism in plants treated with sulfate. Additionally, two key genes involved in cysteine and glutathione biosynthesis (encoding adenosine 5′-phosphosulfate reductase and γ-glutamylcysteine synthetase, respectively) were upregulated within the first day after TMV inoculation under +S conditions. Sulfate withdrawal from the soil was accelerated at the beginning of the infection, whereas it declined in the long term, leading to an accumulation of sulfur in the soil of plants grown with sulfate. This observation could be correlated with a decrease in sulfur contents in TMV-infected leaves in the long term. In summary, this is the first study that demonstrates a link between the activation of cysteine and glutathione metabolism and the induction of SIR/SED during a compatible plant-virus interaction in tobacco plants, indicating a general mechanism behind SIR/SED.

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