Molecular analysis of Greek isolates of cucumber mosaic virus from vegetables shows a low prevalence of satellite RNAs and suggests the presence of host-associated virus strains

2021 ◽  
Author(s):  
Christos A. Valachas ◽  
Ioannis A. Giantsis ◽  
Kyriaki Sareli ◽  
Stephan Winter ◽  
Eleanna Zelezniakof ◽  
...  
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Molecular Analysis ◽  
Satellite Rnas ◽  
Low Prevalence ◽  
Virus Strains

scholarly journals Characterization of cucumber mosaic virus and its satellite RNAs associated with tomato lethal necrosis in Serbia

2021 ◽  
Author(s):  
Ivana Stanković ◽  
Ana Vučurović ◽  
Katarina Zečević ◽  
Branka Petrović ◽  
Dušan Nikolić ◽  
...  
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Satellite Rnas

scholarly journals Cucumber mosaic virus satellite RNAs that induce similar symptoms in melon plants show large differences in fitness

2011 ◽  
Vol 92 (8) ◽  
pp. 1930-1938 ◽  
Author(s):  
Mónica Betancourt ◽  
Aurora Fraile ◽  
Fernando García-Arenal
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Evolutionary Dynamics ◽  
Plant Biomass ◽  
Aphid Transmission ◽  
Helper Virus ◽  
Relative Fitness ◽  
Single Infection ◽  
Trade Offs ◽  
Satellite Rnas

Two groups of Cucumber mosaic virus (CMV) satellite RNAs (satRNAs), necrogenic and non-necrogenic, can be differentiated according to the symptoms they cause in tomato plants, a host in which they also differ in fitness. In most other CMV hosts these CMV-satRNA cause similar symptoms. Here, we analyse whether they differ in traits determining their relative fitness in melon plants, in which the two groups of CMV-satRNAs cause similar symptoms. For this, ten necrogenic and ten non-necrogenic field satRNA genotypes were assayed with Fny-CMV as a helper virus. Neither type of CMV-satRNA modified Fny-CMV symptoms, and both types increased Fny-CMV virulence similarly, as measured by decreases in plant biomass and lifespan. Necrogenic and non-necrogenic satRNAs differed in their ability to multiply in melon tissues; necrogenic satRNAs accumulated to higher levels both in single infection and in competition with non-necrogenic satRNAs. Indeed, multiplication of some non-necrogenic satRNAs was undetectable. Transmission between hosts by aphids was less efficient for necrogenic satRNAs as a consequence of a more severe reduction of CMV accumulation in leaves. The effect of CMV accumulation on aphid transmission was not compensated for by differences in satRNA encapsidation efficiency or transmissibility to CMV progeny. Thus, necrogenic and non-necrogenic satRNAs differ in their relative fitness in melon, and trade-offs are apparent between the within-host and between-host components of satRNA fitness. Hence, CMV-satRNAs could have different evolutionary dynamics in CMV host-plant species in which they do not differ in pathogenicity.

scholarly journals Transmissibility of Cucumber mosaic virus by Aphis gossypii Correlates with Viral Accumulation and Is Affected by the Presence of Its Satellite RNA

2000 ◽  
Vol 90 (10) ◽  
pp. 1068-1072 ◽  
Author(s):  
Fernando Escriu ◽  
Keith L. Perry ◽  
Fernando García-Arenal
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Aphis Gossypii ◽  
Natural Populations ◽  
Virus Transmission ◽  
Negative Effect ◽  
Infected Tomato ◽  
Satellite Rnas ◽  
Viral Accumulation ◽  
Test Plants

Satellite RNAs (satRNAs) are associated with Cucumber mosaic virus (CMV) in tomato, most often causing severe epidemics of necrotic plants, and not associated with specific host symptoms. Laboratory studies on virus transmission by the aphid vector Aphis gossypii were performed to better understand the dynamics of field populations of CMV. The presence of satRNAs correlated with lower concentrations of virus in infected plants and with a decrease in the efficiency of transmission from satRNA-infected plants. Both the concentration of virus in CMV-infected tomato and the efficiency of transmission varied more extensively with nonnecrogenic satRNAs than with necrogenic satRNAs. A negative effect of satRNAs on virus accumulation can account, in part, for a decrease in the field transmission and recovery of CMV + satRNAs. Aphids behaved differently and probed less readily on plants infected with CMV + necrogenic satRNAs compared with plants containing non-necrogenic satRNAs. Aphid-mediated satRNA-free CMV infections were observed in test plants when aphids were fed on source plants containing CMV + nonnecrogenic satRNA; no comparable satRNA-free test plants occurred when aphids were fed on source plants containing necrogenic satRNAs. These results indicate that factors associated with transmission can be a determinant in the evolution of natural populations of CMV and its satRNA.

Differential interactions among strains of tomato aspermy virus and satellite RNAs of cucumber mosaic virus

Virology ◽  
1992 ◽  
Vol 186 (2) ◽  
pp. 475-480 ◽  
Author(s):  
Enrique Moriones ◽  
Isabel Diaz ◽  
Emilio Rodriguez-Cerezo ◽  
Aurora Fraile ◽  
Fernando Garcia-Arenal
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Tomato Aspermy Virus ◽  
Satellite Rnas

scholarly journals Emergence and Characterization of Satellite RNAs Associated with Spanish Cucumber Mosaic Virus Isolates

1984 ◽  
Vol 65 (3) ◽  
pp. 539-547 ◽  
Author(s):  
I. Garcia-Luque ◽  
J. M. Kaper ◽  
J. R. Diaz-Ruiz ◽  
M. Rubio-Huertos
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Satellite Rnas ◽  
Virus Isolates

Satellite RNAs of cucumber mosaic virus: Characterization of two new satellites

Virology ◽  
1984 ◽  
Vol 132 (2) ◽  
pp. 426-435 ◽  
Author(s):  
Peter Palukaitis ◽  
Milton Zaitlin
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Satellite Rnas

scholarly journals Viral Satellite RNAs for the Prevention of Cucumber Mosaic Virus (CMV) Disease in Field-Grown Pepper and Melon Plants

Plant Disease ◽  
1998 ◽  
Vol 82 (12) ◽  
pp. 1298-1303 ◽  
Author(s):  
M. S. Montasser ◽  
M. E. Tousignant ◽  
J. M. Kaper
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Plant Viruses ◽  
Yield Reduction ◽  
Satellite Rna ◽  
Time Intervals ◽  
Mild Strain ◽  
Challenge Inoculation ◽  
Satellite Rnas ◽  
Cmv Disease

A benign viral satellite RNA, in combination with a mild strain of cucumber mosaic virus (CMV-S), was used as a “vaccine” or “preinoculum” to demonstrate the feasibility of protecting pepper (Capsicum annuum cv. California Wonder) and melon (Cucurbita melo cv. Janus des Canaries) against two severe CMV strains, CMV-D and CMV-16, in the final 2 years of a 4-year pilot field and greenhouse experiment. In the field, healthy pepper and melon seedlings challenged with CMV-D and CMV-16 reduced yields by 33 to 60%; CMV-S caused only limited yield reduction in pepper and had no effect on the yield of melon. Different time intervals between preinoculation of pepper and melon seedlings with CMV-S and challenge inoculation with the severe CMV strains were tested. All plants challenged 3 weeks after vaccination showed nearly complete protection from subsequent infection by severe strains. The yield from preinoculated and challenged pepper plants was 80% that of untreated plants, while the yield from preinoculated and challenged melon plants was increased slightly over the untreated control plants. The use of this technology for biological control of plant viruses is discussed.

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