scholarly journals Impact of a defective RNA 3 from cucumber mosaic virus on helper virus infection dynamics

Virology ◽  
2009 ◽  
Vol 389 (1-2) ◽  
pp. 59-65 ◽  
Author(s):  
Minoru Takeshita ◽  
Yuka Matsuo ◽  
Masashi Suzuki ◽  
Naruto Furuya ◽  
Kenichi Tsuchiya ◽  
...  
Keyword(s):  
Virus Infection ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Helper Virus ◽  
Infection Dynamics ◽  
Defective Rna

scholarly journals KETAHANAN BEBERAPA KULTIVAR CABAI TERHADAP CUCUMBER MOSAIC VIRUS DAN CHILLI VEINAL MOTTLE VIRUS

2012 ◽  
Vol 7 (2) ◽  
pp. 130-139
Author(s):  
Muhammad Taufik ◽  
Sri Hendrastuti Hidayat ◽  
Sriani Sujiprihati ◽  
Gede Suastika ◽  
Sientje Mandang Sumaraw
Keyword(s):  
Virus Infection ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Yield Loss ◽  
Disease Incidence ◽  
Growth And Yield ◽  
Mottle Virus ◽  
Tolerance Response ◽  
Chilli Veinal Mottle Virus ◽  
Das Elisa

Resistance Evaluation of Chillipepper Cultivars for Cucumber Mosaic Virus and Chilli Veinal Mottle Virus.  The use of resistance culivars is an important strategy for management of virus infection in chillipepper. A research was undergone to study the effect of single and mix infection of CMV and ChiVMV on the disease incidence and on the growth and yield of nine chillipepper cultivars, i.e. Cilibangi 4, Cilibangi 5, Cilibangi 6, Helem, Jatilaba, Tit Bulat, Tit Segitiga, Tit Super and Tampar. Mechanical inoculation was conducted to transmit the virus. Infection of the virus was then confirmed with DAS-ELISA.  In general, inoculated chillipepper cultivars developed similar symptoms, i.e. mosaic type for CMV and mottle type for ChiVMV.  More severe symptom was not always observed from mix infection of CMV and ChiVMV. Disease incidence occurred in the range of 16.67 – 86.0% and this caused 18.3 – 98.6% yield loss.  Based on symptom expression, ELISA result, and reduction on yield, it can be concluded that all chillipepper cultivars used in this study could not hold up the virus infection. However, several cultivars showed tolerance response :  Jatilaba, Tit Super, and Tampar for CMV; Cilibangi 4 for ChiVMV; Tit Super for mix infection; and Cilibangi 5 for CMV, ChiVMV, and mix infection.  Further evaluation and investigation involving different chillipepper cultivars should be conducted.

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 Heterologous Movement Protein Strongly Modifies the Infection Phenotype of Cucumber Mosaic Virus

2002 ◽  
Vol 76 (7) ◽  
pp. 3554-3557 ◽  
Author(s):  
Emese Huppert ◽  
Dénes Szilassy ◽  
Katalin Salánki ◽  
Zoltán Divéki ◽  
Ervin Balázs
Keyword(s):  
Nicotiana Tabacum ◽  
Virus Infection ◽  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Host Plants ◽  
Movement Protein ◽  
Long Distance ◽  
Cucumber Mosaic Cucumovirus ◽  
Nicotiana Debneyi ◽  
Symptom Phenotype

ABSTRACT A hybrid virus (CMVcymMP) constructed by replacing the movement protein (MP) of cucumber mosaic cucumovirus (CMV) with that of cymbidium ringspot tombusvirus (CymRSV) was viable and could efficiently spread both cell to cell and long distance in host plants. The hybrid virus was able to move cell to cell in the absence of functional CP, whereas CP-deficient CMV was restricted to single inoculated cells. In several Chenopodium and Nicotiana species, the symptom phenotype of the hybrid virus infection was clearly determined by the foreign MP gene. In Nicotiana debneyi and Nicotiana tabacum cv. Xanthi, the hybrid virus could move systemically, contrary to CymRSV.

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