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

scholarly journals Arabidopsis thaliana as a model for the study of plant–virus co-evolution

2010 ◽  
Vol 365 (1548) ◽  
pp. 1983-1995 ◽  
Author(s):  
Israel Pagán ◽  
Aurora Fraile ◽  
Elena Fernandez-Fueyo ◽  
Nuria Montes ◽  
Carlos Alonso-Blanco ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Virus Infection ◽  
Mosaic Virus ◽  
Plant Virus ◽  
Cauliflower Mosaic Virus ◽  
Growth Stages ◽  
Virus Species ◽  
Life Styles ◽  
Two Factors ◽  
Virus Genotypes

Understanding plant–virus coevolution requires wild systems in which there is no human manipulation of either host or virus. To develop such a system, we analysed virus infection in six wild populations of Arabidopsis thaliana in Central Spain. The incidence of five virus species with different life-styles was monitored during four years, and this was analysed in relation to the demography of the host populations. Total virus incidence reached 70 per cent, which suggests a role of virus infection in the population structure and dynamics of the host, under the assumption of a host fitness cost caused by the infection. Maximum incidence occurred at early growth stages, and co-infection with different viruses was frequent, two factors often resulting in increased virulence. Experimental infections under controlled conditions with two isolates of the most prevalent viruses, cauliflower mosaic virus and cucumber mosaic virus, showed that there is genetic variation for virus accumulation, although this depended on the interaction between host and virus genotypes. Comparison of Q ST -based genetic differentiations between both host populations with F ST genetic differentiation based on putatively neutral markers suggests different selection dynamics for resistance against different virus species or genotypes. Together, these results are compatible with a hypothesis of plant–virus coevolution.

scholarly journals Uncoupling Resistance from Cell Death in the Hypersensitive Response of Nicotiana Species to Cauliflower mosaic virus Infection

2001 ◽  
Vol 14 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Anthony B. Cole ◽  
Lóránt Király ◽  
Kathleen Ross ◽  
James E. Schoelz
Keyword(s):  
Cell Death ◽  
Virus Infection ◽  
Mosaic Virus ◽  
Hypersensitive Response ◽  
Cauliflower Mosaic Virus ◽  
Resistance Response ◽  
Pr Protein ◽  
Pathogenesis Related ◽  
Lines Of Evidence ◽  
Mosaic Virus Infection

Cauliflower mosaic virus strain W260 elicits a hypersensitive response (HR) in leaves of Nicotiana edwardsonii, an interspecific hybrid derived from a cross between N. glutinosa and N. clevelandii. Interestingly, we found that N. glutinosa is resistant to W260, but responds with local chlorotic lesions rather than necrotic lesions. In contrast, N. clevelandii responds to W260 with systemic cell death. The reactions of the progenitors of N. edwardsonii to W260 infection indicated that each contributed a factor toward the development of HR. In this study, we present two lines of evidence to show that the resistance and cell death that comprise the HR elicited by W260 can indeed be uncoupled. First, we showed that the non-necrotic resistance response of N. glutinosa could be converted to HR when these plants were crossed with N. clevelandii. Second, we found that cell death and resistance segregated independently in the F2 population of a cross between N. edwardsonii and N. clevelandii. We concluded that the resistance of N. edwardsonii to W260 infection was conditioned by a gene derived from N. glutinosa, whereas cell death was conditioned by a gene derived from N. clevelandii. An analysis of pathogenesis-related (PR) protein expression in response to W260 infection revealed that elicitation of PR proteins was associated with resistance rather than with the onset of cell death.

Thymidine-3H uptake by X-bodies associated with cauliflower mosaic virus infection

Virology ◽  
1969 ◽  
Vol 37 (3) ◽  
pp. 506-508 ◽  
Author(s):  
T. Kamei ◽  
M. Rubio-Huertos ◽  
C. Matsui
Keyword(s):  
Virus Infection ◽  
Mosaic Virus ◽  
Cauliflower Mosaic Virus ◽  
Mosaic Virus Infection

Fine genetic mapping of the TuNI locus causing systemic veinal necrosis by turnip mosaic virus infection in Arabidopsis thaliana

2004 ◽  
Vol 110 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Yo-hei Kaneko ◽  
Tsuyoshi Inukai ◽  
Noriko Suehiro ◽  
Tomohide Natsuaki ◽  
Chikara Masuta
Keyword(s):  
Arabidopsis Thaliana ◽  
Virus Infection ◽  
Genetic Mapping ◽  
Mosaic Virus ◽  
Turnip Mosaic Virus ◽  
Veinal Necrosis ◽  
Fine Genetic Mapping ◽  
Mosaic Virus Infection

scholarly journals Analyzing the G3BP-like gene family of Arabidopsis thaliana in early turnip mosaic virus infection

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hendrik Reuper ◽  
Khalid Amari ◽  
Björn Krenz
Keyword(s):  
Arabidopsis Thaliana ◽  
Virus Infection ◽  
Gene Family ◽  
Mosaic Virus ◽  
Plant Virus ◽  
Stress Granules ◽  
Turnip Mosaic Virus ◽  
Confocal Imaging ◽  
Bimolecular Fluorescence Complementation ◽  
Mosaic Virus Infection

AbstractThe Arabidopsis thaliana genome encodes several genes that are known or predicted to participate in the formation of stress granules (SG). One family of genes encodes for Ras GTPase-activating protein–binding protein (G3BP)-like proteins. Seven genes were identified, of which one of the members was already shown to interact with plant virus proteins in a previous study. A phylogenetic and tissue-specific expression analysis, including laser-dissected phloem, by qRT-PCRs was performed and the sub-cellular localization of individual AtG3BP::EYFP fluorescent fusion proteins expressed in Nicotiana benthamiana epidermal cells was observed. Individual AtG3BP-protein interactions in planta were studied using the bimolecular fluorescence complementation approach in combination with confocal imaging in living cells. In addition, the early and late induction of G3BP-like expression upon Turnip mosaic virus infection was investigated by RNAseq and qRT-PCR. The results showed a high divergence of transcription frequency in the different plant tissues, promiscuous protein–protein interaction within the G3BP-like gene family, and a general induction by a viral infection with TuMV in A. thaliana. The information gained from these studies leads to a better understanding of stress granules, in particular their molecular mode of action in the plant and their role in plant virus infection.

scholarly journals Water deficit changes the relationships between epidemiological traits of Cauliflower mosaic virus across diverse Arabidopsis thaliana accessions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sandy E. Bergès ◽  
Denis Vile ◽  
Michel Yvon ◽  
Diane Masclef ◽  
Myriam Dauzat ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Mosaic Virus ◽  
Water Deficit ◽  
Abiotic Stresses ◽  
Plant Virus ◽  
Transmission Rate ◽  
Horizontal Transmission ◽  
Cauliflower Mosaic Virus ◽  
Significant Relationships ◽  
Response To Water

AbstractChanges in plant abiotic environments may alter plant virus epidemiological traits, but how such changes actually affect their quantitative relationships is poorly understood. Here, we investigated the effects of water deficit on Cauliflower mosaic virus (CaMV) traits (virulence, accumulation, and vectored-transmission rate) in 24 natural Arabidopsis thaliana accessions grown under strictly controlled environmental conditions. CaMV virulence increased significantly in response to water deficit during vegetative growth in all A. thaliana accessions, while viral transmission by aphids and within-host accumulation were significantly altered in only a few. Under well-watered conditions, CaMV accumulation was correlated positively with CaMV transmission by aphids, while under water deficit, this relationship was reversed. Hence, under water deficit, high CaMV accumulation did not predispose to increased horizontal transmission. No other significant relationship between viral traits could be detected. Across accessions, significant relationships between climate at collection sites and viral traits were detected but require further investigation. Interactions between epidemiological traits and their alteration under abiotic stresses must be accounted for when modelling plant virus epidemiology under scenarios of climate change.

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