Tobacco mosaic virus virulence and avirulence

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Tobacco mosaic virus replicase and replicative structures.

The RNA-dependent RNA polymerase (replicase) mediating the replication of tobacco mosaic virus (TMV) has been investigated in a number of laboratories over a period of 20 years. Cell-free enzyme preparations have been prepared which can continue the synthesis of nascent complementary RNA, initiated in vivo; however, the enzyme does not require, nor does it respond to, exogenous viral RNA as a t...

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Interactions between tobacco mosaic virus and the tobacco N gene.

The interaction between tobacco mosaic virus (TMV) and tobacco harbouring the N gene is a classical system for studying gene-for-gene interactions in disease resistance. The N gene confers resistance to TMV by mediating defence responses that function to limit viral replication and movement. We isolated the N gene and determined that N belongs to the nucleotide-binding-site-leucine-rich-repeat ...

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Paenibacillus lentimorbus Inoculation Enhances Tobacco Growth and Extenuates the Virulence of Cucumber mosaic virus

Previous studies with Paenibacillus lentimorbus B-30488" (hereafter referred as B-30488), a plant growth promoting rhizobacteria (PGPR) isolated from cow's milk, revealed its capabilities to improve plant quality under normal and stress conditions. Present study investigates its potential as a biocontrol agent against an economically important virus, Cucumber mosaic virus (CMV), in Nicotiana ta...

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Relationships between Tobacco Mosaic Virus and the Non-virus Proteins

1. The non-virus proteins, A4, B3, and B6, characteristically found in tobacco leaf infected with TMV exhibit specific immunochemical cross-reactions with serum prepared against the virus. The close immunochemical relations which occur among these proteins do not extend to any normal tobacco leaf proteins. 2. The rate of appearance of the non-virus proteins in newly infected cultured leaf tissu...

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Dielectric spectroscopy of Tobacco Mosaic Virus.

The dielectric properties of the Tobacco Mosaic Virus (TMV) have been measured using time domain dielectric spectroscopy (TDDS) in the temperature range from 1 to 40 degrees C. A single dielectric dispersion is observed in the MHz range. The activation energy of the process is found to be in the range 1-2 kcal/mol. The experimental data could not be completely accounted for by current theoretic...

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ژورنال

عنوان ژورنال: Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences

سال: 1999

ISSN: 0962-8436,1471-2970

DOI: 10.1098/rstb.1999.0416