Search

Your search keyword '"J. Dunez"' showing total 25 results
Start Over Author "J. Dunez" Topic horticulture
25 results on '"J. Dunez"'

3. Isolation and partial characterization of a new virus infecting Prunus armeniaca (apricot) and belonging to the Nepovirus genus

Author

P. Gentit, R.P. Delbos, J. Dunez, T. Candresse, ProdInra, Migration, Génomique, développement et pouvoir pathogène (GD2P), and Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA)

Subjects
0106 biological sciences, biology, [SDV]Life Sciences [q-bio], 04 agricultural and veterinary sciences, Horticulture, biology.organism_classification, Isolation (microbiology), 01 natural sciences, Prunus armeniaca, Virology, Virus, VIROLOGIE, [SDV] Life Sciences [q-bio], Genus, Botany, 040103 agronomy & agriculture, Nepovirus, 0401 agriculture, forestry, and fisheries, ComputingMilieux_MISCELLANEOUS, 010606 plant biology & botany
Abstract

International audience

Published
2001

4. Analysis of plum pox virus variability and development of strain-specific PCR assays

Author

J. Dunez, T. Candresse, G. Macquaire, L. Quiot-Douine, Jean-Bernard Quiot, M. Lanne, M. Bousalem, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), Biologie et Génétique des Interactions Plante-Parasite (UMR BGPI), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut National de la Recherche Agronomique (INRA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), and ProdInra, Migration

Subjects
0106 biological sciences, 0303 health sciences, Strain (chemistry), [SDV]Life Sciences [q-bio], Pcr assay, Horticulture, Biology, 01 natural sciences, Virology, VIROLOGIE, [SDV] Life Sciences [q-bio], 03 medical and health sciences, Pox virus, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 010606 plant biology & botany
Abstract

International audience

Published
1994

5. In vitro and in vivo expression of PPV helper-component gene

Author

Olivier Peyruchaud, L. Garrigue, J. Dunez, Geneviève Tavert-Roudet, M. Ravelonandro, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), and ProdInra, Migration

Subjects
0106 biological sciences, Chemistry, [SDV]Life Sciences [q-bio], VECTEUR, 04 agricultural and veterinary sciences, Horticulture, 01 natural sciences, In vitro, Cell biology, VIROLOGIE, [SDV] Life Sciences [q-bio], FACTEUR INSISTANT, In vivo, Component (UML), 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Gene, ComputingMilieux_MISCELLANEOUS, 010606 plant biology & botany
Abstract

International audience

Published
1991

6. Molecular techniques for plum pox potyvirus (PPV) detection and cloning of the genomic RNA from an atypical strain : PPV EL AMAR

Author

T. Candresse, T. Wetzel, G. Macquaire, R.P. Delbos, A.E. Aboul Ata, H. M. Mazyad, M. Ravelonandro, J. Dunez, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), and ProdInra, Migration

Subjects
0106 biological sciences, Cloning, Strain (biology), [SDV]Life Sciences [q-bio], AMPLIFICATION CHAINE POLYMERASE, Horticulture, Biology, BIOLOGIE MOLECULAIRE, 01 natural sciences, Virology, 3. Good health, Plum pox potyvirus, [SDV] Life Sciences [q-bio], 03 medical and health sciences, 0302 clinical medicine, Genomic rna, ComputingMilieux_MISCELLANEOUS, 010606 plant biology & botany, 030215 immunology
Abstract

International audience

Published
1991

7. Transgenic tobacco plants that contain the plum pox virus (PPV) coat protein gene

Author

J. Dunez, M. Ravelonandro, M. Monsion, R.P. Delbos, Pierre-Yves Teycheney, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), and ProdInra, Migration

Subjects
0106 biological sciences, 0303 health sciences, Transgene, [SDV]Life Sciences [q-bio], Horticulture, Biology, Coat protein, 01 natural sciences, Virology, Plum pox virus PPV, VIROLOGIE, [SDV] Life Sciences [q-bio], 03 medical and health sciences, Gene, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 010606 plant biology & botany
Abstract

International audience

Published
1991

8. Genomic organization of plum pox virus and recombinant DNA technology to combat plum pox virus

Author

J. Dunez, T. Wetzel, Pierre-Yves Teycheney, M. Monsion, G. Tavert, René Delbos, M. Ravelonandro, ProdInra, Migration, Unité mixte de recherche santé végétale, and Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)

Subjects
0106 biological sciences, medicine.medical_specialty, [SDV]Life Sciences [q-bio], Horticulture, Biology, 01 natural sciences, law.invention, 03 medical and health sciences, law, Molecular genetics, Plant virus, PRUNIER, medicine, Pox virus, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, Genomic organization, Genetics, 0303 health sciences, Virology, PHYTOPATOLOGIE, 3. Good health, [SDV] Life Sciences [q-bio], INSECTE, LUTTE, Recombinant DNA, ADN RECOMBINANT, 010606 plant biology & botany
Abstract

International audience

Published
1990

17. Analysis of nine isolates of almond mosaic

Author

R. Bernhard, M. Lansac, G. Detienne, J. Dunez, Station de recherches fruitières, Institut National de la Recherche Agronomique (INRA), UR 0418 Station de recherches fruitières, Villenave-d'Ornon, and Unité de recherches Espèces Fruitières et Vigne (UREFV)

Subjects
0106 biological sciences, viruses, [SDV]Life Sciences [q-bio], fungi, food and beverages, Mosaic (geodemography), 04 agricultural and veterinary sciences, Horticulture, Biology, 01 natural sciences, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, 010606 plant biology & botany
Abstract

International audience; Nine almond tree cultivars originating from the Mediterranean area and cultivated in South France, express mosaic symptoms on the leaves. The purpose of this study is to investigate the possible virus origin of almond mosaic. The nine isolates were observed during four years and indexed on woody and herbaceous indicators. The immuno-enzymatic ELISA procedure was applied for prunus necrotic ring spot virus (PNRSV), prune dwarf virus (PDV) and apple chlorotic leaf spot virus (CLSV). It appears that mosaic symptoms in almond can result from infection by PNRSV, PDV and CLSV, but it also appears in the absence of these viruses and can be induced by another virus which, so far, has not been identified and could be distantly related to some ILAR viruses.

Published
1980
Full Text
View/download PDF

18. Virus infection of walnuts in France

Author

M. Lansac, J. Dunez, E. Germain, F. Dosba, C. Kerlan, R. Delbos, UR 0418 Station de recherches fruitières, Institut National de la Recherche Agronomique (INRA), Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), Station de recherches fruitières, and Unité de recherches Espèces Fruitières et Vigne (UREFV)

Subjects
0106 biological sciences, 0303 health sciences, 03 medical and health sciences, [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, Horticulture, Biology, 01 natural sciences, Virology, Virus, 030304 developmental biology, 010606 plant biology & botany
Abstract

International audience; In the past 20 years, Juglans nigra has been introduced in the new French plantations of Walnut as a dwarfing rootstock able to induce a rapid fruiting. Presently in France, there are 2 millions trees, half growing as separate trees. The percentage of trees grafted in orchards on J. nigra varies with the region from 5 % to 95 % with an average of 15–20 % : most trees grafted on J. nigra are less than 20 years old. Black line (BL) symptom at the union was observed on J. regia grafted on J. nigra as it was described in the USA on trees grafted on J. hindsii or Paradox. The black line symptom was observed on 15–20 years old trees and seems to appear earlier when the trees grow in poor soils. Trees die within 2–4 years after the first BL symptom appears. BL symptom was never observed on J. regia grafted on J. regia. Cherry leaf roll virus was isolated from trees grafted on J.nigra with BL symptoms but was also present in some symptomless trees without any symptoms. Such symptomless infections were also detected on trees grafted on J. regia. The virus was identified by bioassay on herbaceous plants and serology (ELISA). Presence of CLRV was demonstrated on 6 varieties. The French Walnut CLRV isolates have been successfully transmitted onto the peach seedlings GF 305 which show a stunt reaction very similar to that observed when infected with CLRV strains from other origins. The virus is seed borne and the percentage of infected seedlings in J. regia is 5–20 %. From the serological tests, the French isolates appear to be closely related to the US Walnut isolates and the Elderberry strain of Cherry leaf roll and are also related to the Walnut ring spot and Walnut yellow vein viruses described in Italy.

Published
1982
Full Text
View/download PDF

19. Identification and comparison of different strains od apple chlorotic leaf spot virus and possibilities of cross protection

Author

J. Dunez, C. Marenaud, R. Bernhard, INRA : UR419, Institut National de la Recherche Agronomique (INRA), Unité de recherches Espèces Fruitières et Vigne (UREFV), Station d'Arboriculture Fruitière, and ProdInra, Migration

Subjects
0106 biological sciences, [SDV]Life Sciences [q-bio], 04 agricultural and veterinary sciences, Horticulture, Biology, 01 natural sciences, Apple chlorotic leaf spot virus, [SDV] Life Sciences [q-bio], Botany, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Identification (biology), ComputingMilieux_MISCELLANEOUS, 010606 plant biology & botany
Abstract

International audience

Published
1976

20. Detection of Chrysanthemum stunt and chlorotic mottle viroids by slab gel electrophoresis

Author

J. Dunez, J. C. Bachelier, M. Monsion, C. Faydi, G. Macquaire, UR 0420 - Station de pathologie végétale, Laboratoire de pathologie forestière, and Institut National de la Recherche Agronomique (INRA)-Institut National de la Recherche Agronomique (INRA)

Subjects
Gel electrophoresis, viruses, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Slab, medicine, food and beverages, Mottle, Horticulture, Biology, medicine.disease, Virology
Abstract

The two Chrysanthemum viroids, Chrysanthemum stunt (CSV) and Chrysanthemum chlorotic mottle (CChMV) are detected by polyacrylamide gel electrophoresis ; the electrophoretic assay is an adaptation to slab gels (PASGE) of the Morris and Smith's procedure previously applied to Potato spindle tuber viroid. Use of ethidium bromide staining, specific of double stranded nucleic acids, makes the method much more sensitive than after toluidine blue 0 staining or by U.V. scanning of cylindrical gels.Compared to the biological indexing the technique appears highly sensitive : this biochemical test allows CSV detection in samples as small as 10 mg plant material.By using PASGE the presence of viroids can be noticed earlier after infection than with the normal biological indexing : viroid RNA can be observed in plants which do not show any symptom.The importance of sampling is emphasized. Viroids are detected in any part of the infected Chrysanthemum plants. Nevertheless, viroids concentration is higher in the tips and the young leaves which are the best material for indexing.This technique has been applied to a large number of samples. It is simple, rapid, highly sensitive and reliable and consequently seems to be very appropriate to a large scale indexing.

Published
1980
Full Text
View/download PDF

21. Preliminary studies on the antagonism between strains of plum pox virus

Author

J. Dunez, C. Kerlan, P. Maison, M. Lansac, UR 0418 Station de recherches fruitières, Villenave-d'Ornon, Institut National de la Recherche Agronomique (INRA), Station de recherches fruitières, and Unité de recherches Espèces Fruitières et Vigne (UREFV)

Subjects
0106 biological sciences, [SDV]Life Sciences [q-bio], 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Pox virus, 04 agricultural and veterinary sciences, Horticulture, Biology, Antagonism, 01 natural sciences, Virology, 010606 plant biology & botany
Abstract

International audience; The cross protecting effect of some mild strains of plum pox virus was checked in preliminary experiments carried out in the greenhouse. These mild strains were inoculated by chip-budding. The severe challenge strain was inoculated by aphid transmission using the peach green aphid, Myzus persicae. The results indicate a protective effect of the mild strains. Protection varies with, the nature of the mild strain but in each case the protected trees did not show the severe symptoms usually induced by the challenging severe strain. Symptoms appeared intermediate in intensity and the incubation period was longer than in the unprotected plants

Published
1980
Full Text
View/download PDF

22. Synthesis and characterization of a DNA complementary to Plum pox virus RNA to be used as a specific detection probe

Author

C. Varveri, J. Dunez, C. Bretout, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), and ProdInra, Migration

Subjects
0106 biological sciences, Specific detection, [SDV]Life Sciences [q-bio], RNA, 04 agricultural and veterinary sciences, Horticulture, Biology, 01 natural sciences, Virology, VIROLOGIE, [SDV] Life Sciences [q-bio], 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, A-DNA, Pox virus, ComputingMilieux_MISCELLANEOUS, 010606 plant biology & botany
Abstract

International audience

Published
1985

23. Capsid protein of plum pox potyvirus : structure and comparison with that of other potyviruses

Author

J. Dunez, M. Ravelonandro, Christina Varveri, R. Delbos, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), and ProdInra, Migration

Subjects
0106 biological sciences, 0303 health sciences, [SDV]Life Sciences [q-bio], SEQUENCE PROTEIQUE, Horticulture, Biology, 01 natural sciences, Virology, 030308 mycology & parasitology, Plum pox potyvirus, VIROLOGIE, [SDV] Life Sciences [q-bio], 03 medical and health sciences, Capsid, ComputingMilieux_MISCELLANEOUS, 010606 plant biology & botany
Abstract

International audience

Published
1988

24. Use of in vitro transcribed RNAs for plum pox virus detection in a dot blot hybridization assay

Author

M. Ravelonandro, Christina Varveri, J. Dunez, G. Macquaire, T. Candresse, Unité mixte de recherche santé végétale, Institut National de la Recherche Agronomique (INRA)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB), and ProdInra, Migration

Subjects
0106 biological sciences, 0303 health sciences, [SDV]Life Sciences [q-bio], Dot blot, Horticulture, Biology, 01 natural sciences, Virology, Molecular biology, In vitro, VIROLOGIE, [SDV] Life Sciences [q-bio], 03 medical and health sciences, Allele-specific oligonucleotide, Pox virus, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 010606 plant biology & botany
Abstract

International audience

Published
1988

Catalog

Books, media, physical & digital resources
See catalog results