scholarly journals The 5′ Third of Cauliflower mosaic virus Gene VI Conditions Resistance Breakage in Arabidopsis Ecotype Tsu-0

2002 ◽  
Vol 92 (2) ◽  
pp. 190-196 ◽  
Author(s):  
K. Agama ◽  
S. Beach ◽  
J. Schoelz ◽  
S. M. Leisner
Keyword(s):  
Arabidopsis Thaliana ◽  
Mosaic Virus ◽  
Viral Genome ◽  
Plant Defenses ◽  
Cauliflower Mosaic Virus ◽  
Virus Gene ◽  
Arabidopsis Ecotype ◽  
Passive Mechanism ◽  
Different Types ◽  
Solanaceous Plants

Arabidopsis thaliana ecotypes vary in their responses to viruses. In this study, we analyzed the variation in response of A. thaliana ecotype Tsu-0 to Cauliflower mosaic virus (CaMV). This ecotype was previously reported to be resistant to two CaMV isolates (CM1841 and CM4-184), but susceptible to W260. In this study, we show that Tsu-0 is resistant to four additional CaMV isolates. CaMV propagated within the rosette leaves of Tsu-0 plants, but did not appear to spread systemically into the inflorescence. However, virus viability in rosette leaves of Tsu-0 plants apparently was not compromised because infectious CaMV could be recovered from these organs. W260 overcomes Tsu-0 resistance by a passive mechanism (i.e., this virus avoids activating plant defenses). The portion of the viral genome responsible for W260 resistance breakage was mapped to the 5′ third of gene VI, which we have termed RBR-1. This region is also responsible for controlling the ability of CaMV to infect different types of solanaceous plants. Hence, the pathways by which plants of different families interact with CaMV may be conserved through evolution.

scholarly journals Cauliflower Mosaic Virus Isolate NY8153 Breaks Resistance in Arabidopsis Ecotype En-2

1997 ◽  
Vol 87 (8) ◽  
pp. 792-798 ◽  
Author(s):  
W. Tang ◽  
S. M. Leisner
Keyword(s):  
Arabidopsis Thaliana ◽  
Mosaic Virus ◽  
Virus Isolate ◽  
Systemic Infection ◽  
Cauliflower Mosaic Virus ◽  
Limited Extent ◽  
Long Distance ◽  
Mechanism Of Resistance ◽  
Arabidopsis Ecotype ◽  
Long Distance Movement

Arabidopsis thaliana ecotype En-2 was previously shown to be resistant to cauliflower mosaic caulimovirus (CaMV) isolate CM4-184. In this study, En-2 plants were screened with eight other isolates of CaMV to identify viruses capable of overcoming resistance and to determine if the mechanism of resistance was the same for each virus. En-2 resistance to most CaMV isolates was mediated by the same mechanism, i.e., preventing virus long-distance movement. One CaMV isolate, NY8153, was found that produced a severe systemic infection on En-2 plants. In addition, the CM1841 isolate was able to spread systemically through En-2 plants, to a limited extent, without producing visible symptoms. These data indicate that the resistance shown by En-2 plants is not an all-or-none phenomenon. En-2 plants were susceptible to turnip mosaic potyvirus, suggesting that resistance is specific to CaMV.

scholarly journals The Avirulence Domain of Cauliflower mosaic virus Transactivator/Viroplasmin Is a Determinant of Viral Virulence in Susceptible Hosts

2004 ◽  
Vol 17 (5) ◽  
pp. 475-483 ◽  
Author(s):  
Kappei Kobayashi ◽  
Thomas Hohn
Keyword(s):  
Mosaic Virus ◽  
Host Plants ◽  
Datura Stramonium ◽  
Cauliflower Mosaic Virus ◽  
Wild Type Virus ◽  
Wild Type ◽  
Multifunctional Protein ◽  
Viral Virulence ◽  
Host Defense Response ◽  
Solanaceous Plants

Cauliflower mosaic virus (CaMV) transactivator/viroplasmin (Tav) is a multifunctional protein essential for basic replication of CaMV. It also plays a role in viral pathogenesis in crucifer and solanaceous host plants. Deletion mutagenesis revealed that N- and C-terminal parts of Tav are not essential for CaMV replication in transfected protoplasts. Two deletion mutants having only minimal defects in basic replication were infectious in turnips but only with highly attenuated virulence. This was shown to be due to delayed virus spread within the inoculated leaves and to the upper leaves. Unlike the wild-type virus, the mutant viruses successfully spread locally without inducing a host defense response in inoculated Datura stramonium leaves, but did not spread systemically. These results provide the first evidence that a Tav domain required for avirulence function in solanaceous plants is not essential for CaMV infectivity but has a role in viral virulence in susceptible hosts.

scholarly journals A second cauliflower mosaic virus gene product influences the structure of the viral inclusion body

1984 ◽  
Vol 3 (6) ◽  
pp. 1423-1427 ◽  
Author(s):  
L. Givord ◽  
C. Xiong ◽  
M. Giband ◽  
I. Koenig ◽  
T. Hohn ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Gene Product ◽  
Inclusion Body ◽  
Cauliflower Mosaic Virus ◽  
Virus Gene ◽  
Viral Inclusion

Immunological detection of cauliflower mosaic virus gene V protein produced in engineered bacteria or infected plants

Gene ◽  
1985 ◽  
Vol 36 (3) ◽  
pp. 271-279 ◽  
Author(s):  
Véronique Ziegler ◽  
Patricia Laquel ◽  
Hubert Guilley ◽  
Ken Richards ◽  
Gérard Jonard
Keyword(s):  
Mosaic Virus ◽  
Cauliflower Mosaic Virus ◽  
V Protein ◽  
Virus Gene ◽  
Immunological Detection ◽  
Engineered Bacteria

Location and sequence of a region of cauliflower mosaic virus gene 2 responsible for aphid transmissibility

Virology ◽  
1987 ◽  
Vol 160 (1) ◽  
pp. 246-251 ◽  
Author(s):  
Crispin J. Woolston ◽  
Lloyd G. Czaplewski ◽  
Peter G. Markham ◽  
Alison S. Goad ◽  
Roger Hull ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Cauliflower Mosaic Virus ◽  
Virus Gene

Expression of cauliflower mosaic virus gene I in Saccharomyces cerevisiae

1991 ◽  
Vol 142 (4) ◽  
pp. 297-302 ◽  
Author(s):  
D. Kirchherr ◽  
T. Wurch ◽  
J.-M. Mesnard ◽  
G. Lebeurier
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Mosaic Virus ◽  
Cauliflower Mosaic Virus ◽  
Virus Gene

scholarly journals Natural variation of Arabidopsis thaliana responses to Cauliflower mosaic virus infection upon water deficit

2020 ◽  
Vol 16 (5) ◽  
pp. e1008557
Author(s):  
Sandy E. Bergès ◽  
François Vasseur ◽  
Alexis Bediée ◽  
Gaëlle Rolland ◽  
Diane Masclef ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Virus Infection ◽  
Mosaic Virus ◽  
Water Deficit ◽  
Natural Variation ◽  
Cauliflower Mosaic Virus ◽  
Mosaic Virus Infection
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