Effect of temperature on cucumber mosaic virus satellite-induced lethal tomato necrosis is helper virus strain dependent

Archives of Virology
J M KaperM E Tousignant

Abstract

The effect of temperature on the response of tomato (Lycopersicon esculentum Mill. cv. Rutgers) to infections with the necrogenic cucumber mosaic virus (CMV) satellite D-CARNA 5 was investigated with each of four CMV strains D, 1, Y and S functioning as helper virus. At 24 degrees C lethal necrosis was observed in all infections. However, at 32 degrees C the response varied from total absence or reduction of necrosis with some strains to accelerated lethal necrosis with others. The total lack of necrotic response with CMV-S and the aggravated necrosis with CMV-Y at the higher temperature both turned out to be independent of the coinfecting satellite, and rather to correlate with the changing rate of viral RNA accumulation in tomato, which probably was responsible for the changes in pathogenic response. However, when CMV-D was helper virus, satellite accumulation decreased, while with CMV-1 it increased, respectively, while viral RNA accumulations were not seriously affected. Although these profound effects of temperature seem to link the necrotic response of tomato to the competitive replication dynamics of the infecting virus/satellite combination in the case of CMV-D/D-CARNA 5, temperature effects at other levels of disease i...Continue Reading

References

Feb 25, 1991·FEBS Letters·R Quadt, E M Jaspars
Feb 1, 1989·Journal of Virological Methods·J L White, J M Kaper
Feb 26, 1986·Biochemical and Biophysical Research Communications·C W Collmer, J M Kaper
Jan 1, 1974·The Journal of General Virology·H LotR Hull
Apr 22, 1977·Science·J M Kaper, H E Waterworth
Jun 1, 1979·Virology·D W Mossop, R I Francki

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Citations

Jul 19, 2012·PLoS Pathogens·Ferdinand RoeschOlivier Schwartz
Nov 12, 2005·Parasitology·I R Haga, A G Bowie
Oct 3, 2006·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·M Alejandra PerottiHenk R Braig
Jan 24, 2007·Physiological Reviews·Kendra J GreenleeFarrah Kheradmand

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