scholarly journals Superinfection exclusion by Citrus tristeza virus does not correlate with the production of viral small RNAs

Virology ◽  
2014 ◽  
Vol 468-470 ◽  
pp. 462-471 ◽  
Author(s):  
Svetlana Y. Folimonova ◽  
Scott J. Harper ◽  
Michael T. Leonard ◽  
Eric W. Triplett ◽  
Turksen Shilts
Virology ◽  
2016 ◽  
Vol 489 ◽  
pp. 108-115 ◽  
Author(s):  
Osama O. Atallah ◽  
Sung-Hwan Kang ◽  
Choaa A. El-Mohtar ◽  
Turksen Shilts ◽  
María Bergua ◽  
...  

Virology ◽  
2016 ◽  
Vol 499 ◽  
pp. 331-339 ◽  
Author(s):  
María Bergua ◽  
Sung-Hwan Kang ◽  
Svetlana Y. Folimonova

2015 ◽  
Vol 160 (10) ◽  
pp. 2583-2589 ◽  
Author(s):  
Grazia Licciardello ◽  
Giuseppe Scuderi ◽  
Rosario Ferraro ◽  
Annalisa Giampetruzzi ◽  
Marcella Russo ◽  
...  

2009 ◽  
Vol 84 (3) ◽  
pp. 1314-1325 ◽  
Author(s):  
Svetlana Y. Folimonova ◽  
Cecile J. Robertson ◽  
Turksen Shilts ◽  
Alexey S. Folimonov ◽  
Mark E. Hilf ◽  
...  

ABSTRACT Superinfection exclusion or homologous interference, a phenomenon in which a primary viral infection prevents a secondary infection with the same or closely related virus, has been observed commonly for viruses in various systems, including viruses of bacteria, plants, and animals. With plant viruses, homologous interference initially was used as a test of virus relatedness to define whether two virus isolates were “strains” of the same virus or represented different viruses, and subsequently purposeful infection with a mild isolate was implemented as a protective measure against isolates of the virus causing severe disease. In this study we examined superinfection exclusion of Citrus tristeza virus (CTV), a positive-sense RNA closterovirus. Thirteen naturally occurring isolates of CTV representing five different virus strains and a set of isolates originated from virus constructs engineered based on an infectious cDNA clone of T36 isolate of CTV, including hybrids containing sequences from different isolates, were examined for their ability to prevent superinfection by another isolate of the virus. We show that superinfection exclusion occurred only between isolates of the same strain and not between isolates of different strains. When isolates of the same strain were used for sequential plant inoculation, the primary infection provided complete exclusion of the challenge isolate, whereas isolates from heterologous strains appeared to have no effect on replication, movement or systemic infection by the challenge virus. Surprisingly, substitution of extended cognate sequences from isolates of the T68 or T30 strains into T36 did not confer the ability of resulting hybrid viruses to exclude superinfection by those donor strains. Overall, these results do not appear to be explained by mechanisms proposed previously for other viruses. Moreover, these observations bring an understanding of some previously unexplained fundamental features of CTV biology and, most importantly, build a foundation for the strategy of selecting mild isolates that would efficiently exclude severe virus isolates as a practical means to control CTV diseases.


Author(s):  
Asma Najar ◽  
Imen Hamdi ◽  
Souad Mahmoud ◽  
Lassaad Medhioub ◽  
Imed Jaouadi ◽  
...  

1989 ◽  
Vol 16 (3) ◽  
pp. 315-320
Author(s):  
Ruth Marcus ◽  
Hovav Talpaz ◽  
Moshe Bar-Joseph

2006 ◽  
Vol 49 (1) ◽  
pp. 88-96 ◽  
Author(s):  
Dae Hyun Kim ◽  
Hye Kyung Shim ◽  
Jae Wook Hyeon ◽  
Hyeog Mo Kwon ◽  
Kwang Sik Kim ◽  
...  

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