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Academic literature on the topic 'Virus de la mosaïque du chou-fleur'
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Journal articles on the topic "Virus de la mosaïque du chou-fleur"
Kerlan, C., and S. Mevel. "Variabilité biologique du virus de la mosaïque du chou-fleur sur chou-fleur en Bretagne." Agronomie 9, no. 1 (1989): 83–90. http://dx.doi.org/10.1051/agro:19890109.
Full textMevel, S., and C. Kerlan. "Caractérisation biologique de différents isolats du virus de la mosaïque du chou fleur (CaMV). 1. Plantes hôtes : Solanées." Agronomie 10, no. 9 (1990): 749–58. http://dx.doi.org/10.1051/agro:19900906.
Full textDissertations / Theses on the topic "Virus de la mosaïque du chou-fleur"
Kubina, Julie. "Étude de l'export nucléaire des ARNm du virus de la mosaïque du chou-fleur (CaMV) chez Arabidopsis thaliana." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAJ052.
Full textIn metazoa most of the mature cellular and viral mRNAs are exported out of the nucleus via the TAP-p15 export receptors and their associated TREX-1 complex while a minority is exported by the exportin CRM1. In plants, this fundamental process is poorly known and even unknown for DNA phytoviruses such as CaMV and its 19S and 35S mRNAs. Our aim was to clarify this important but never studied step in CaMV life cycle in order to decode the mechanisms of mRNAs nuclear export in the model plant Arabidopsis thaliana. Our main results show that CaMV uses both the TREX-1 complex pathway as well as CRM1 to export its 35S mRNAs, and that the precursor of the viral proteinase and retrotranscriptase, P5, is important for the nuclear export by TREX-1. We also demonstrated that CaMV 35S RNA leader region and especially its highly structured stem-loop is a cis-acting element recognized by the mRNAs nuclear export machinery
Champagne, Julie. "Étude de la localisation, la phosphorylation et éléments structuraux des extensions N- et C- terminales de la protéine de la capside du virus de la mosaïque du chou-fleur." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24569/24569.pdf.
Full textBouton, Clément. "Etude de l'épissage alternatif de l'ARN 35S du virus de la mosaïque du chou-fleur (CaMV) et de l'export nucléaire des ARN viraux." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ036/document.
Full textAlternative splicing and nuclear export of the pregenomic 35S RNA are two steps of the infectious cycle of Cauliflower mosaic virus (CaMV) that are poorly understood. Four 35S RNA spliced isoforms were described in previous reports. Our results show that at least twelve spliced 35S RNA isoforms are generated upon infection. Alternative splicing is important for CaMV infectivity but apparently, it does not expand CaMV proteome. Its role is difficult to assess because inactivation of splice donor or acceptor sites is constantly rescued by the use of cryptic sites. In order to maintain CaMV genomic integrity, unspliced 35S RNA must be exported to the cytoplasm. Our work has been mainly focused on developing experimental tools dedicated to study the 35S RNA nuclear export pathway as well as viral sequences and proteins potentially involved in this process
Bureau, Marina. "Etude de la protéine P6 du virus de la mosaïque du chou-fleur (CaMV) : localisation cellulaire et identification de partenaires d'interaction." Paris 6, 2004. http://www.theses.fr/2004PA066032.
Full textSchmidt, Isabelle. "La transmission du virus de la mosaïque du chou-fleur (CaMV) par puceron : étude du mécanisme moléculaire d'action du facteur assistant de la transmission (FAT)." Tours, 1996. http://www.theses.fr/1996TOUR4002.
Full textHaas, Gabrielle. "Étude de l’importation nucléaire de la protéine P6 du virus de la mosaïque du chou-fleur et de son rôle dans la suppression du RNA silencing antiviral." Université Louis Pasteur (Strasbourg) (1971-2008), 2007. https://publication-theses.unistra.fr/public/theses_doctorat/2007/HAAS_Gabrielle_2007.pdf.
Full textThe P6 protein of Cauliflower mosaic virus (CaMV), a plant pararetrovirus, is a key component of the CaMV replication cycle. This multifunctional protein is involved in host specificity, symptoms expression, and in viral proteins synthesis from a polycistronic viral RNA through a noncanonical strategy. It also forms cytoplasmic inclusion bodies, called viroplasms, which are considered as viral factories. Finally, recent studies indicate that P6 shuttles between the nucleus and the cytoplasm, suggesting that the protein has one or several nuclear functions. To elucidate this aspect, we first studied the nuclear import properties of P6. Directed mutagenesis experiments combined to protein-protein interaction assays revealed that P6 contains one canonical and one non-conventional nuclear localization signal (NLS), both of which are cooperatively required for its import through the importin α pathway. In addition, in planta experiments showed that P6 nucleocytoplasmic shuttling is essential for virus infectivity demonstrating the importance of its nuclear function(s). Through genetic approaches, we have uncovered one of these functions: nuclear P6 suppresses RNA silencing, a paneukaryotic mechanism for regulation of gene expression, involved in antiviral defence, in development and in maintenance of nuclear genome integrity
Hébrard, Eugénie. "Caractérisation du facteur assistant de la transmission du virus de la mosai͏̈que du chou-fleur (CaMV) : aspects structuraux et fonctionnels." Montpellier 2, 2001. http://www.theses.fr/2001MON20040.
Full textThiébeauld, Odon. "Réinitiation de la traduction dépendante de TAV au cours de l’infection des plantes par le virus de la mosaïque du chou-fleur : Caractérisation fonctionnelle d'une nouvelle protéine cellulaire RISP." Université Louis Pasteur (Strasbourg) (1971-2008), 2007. https://publication-theses.unistra.fr/public/theses_doctorat/2007/THIEBEAULD_Odon_2007.pdf.
Full textThe cauliflower mosaic virus has developed an original translation reinitiation strategy to synthesize viral proteins from polycistronic mRNA. This strategy is very complex and not very well-known but involves the viral protein TAV (transactivator/ viroplasmin) wich activates alternative cellular pathways to allow translation reinitiation of major open reading frames on the polycistronic viral RNA. In my Phd, we have shown that TAV reinitiation function depends on a novel cellular protein RISP, reinitiation supporting protein. RISP physically interacts with TAV via TAV's essential transactivation domain, and may bind the 60S ribosomal subunit. Transient expression of RISP in plant protoplasts strongly increases TAV transactivation activity. We show TAV/RISP/60S complex formation in vitro, recruitment of RISP by TAV to polysomes, and suggest the involvement of the TAV/RISP/60S complex in efficient 60S recruitment to polysomes thus increasing the probability of the reinitiation event
KERLAN, CAMILLE. "Epidemiologie et variabilite du virus de la mosaique du chou-fleur en culture de chou-fleur en bretagne de 1984-1990." Rennes 1, 1992. http://www.theses.fr/1992REN10050.
Full textMesnard, Jean-Michel. "Le Gène III du virus de la mosaïque du chou-fleur, CaMV." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376163256.
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