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Nguyen-Huu T, Doré J, Aït Barka E, Lavire C, Clément C, Vial L, Sanchez L. Development of a DNA-Based Real-Time PCR Assay To Quantify Allorhizobium vitis Over Time in Grapevine ( Vitis vinifera L.) Plantlets. Plant Dis 2021; 105:384-391. [PMID: 32734845 DOI: 10.1094/pdis-04-20-0732-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Allorhizobium vitis is the primary causal pathogen of grapevine crown gall disease. Because this endophytic bacterium can survive as a systemic latent (symptomless) infection in grapevine, detecting and monitoring its development in planta is of great importance. In plant bacteria studies, plate counting is routinely used as a simple and reliable method to evaluate the bacterial population level in planta. However, isolation techniques are time-consuming and present some disadvantages such as the risk of contamination and the need for fresh samples for research. In this study, we developed a DNA-based real-time PCR assay that can replace the classical method to monitor the development of Allorhizobium vitis in grapevine plantlets. Primers targeting Allorhizobium vitis chromosomic genes and the virulent tumor-inducing plasmid were validated. The proposed quantitative real-time PCR technique is highly reliable and reproducible to assess Allorhizobium vitis numeration at the earliest stage of infection until tumor development in grapevine plantlets. Moreover, this low-cost technique provides rapid and robust in planta quantification of the pathogen and is suitable for fundamental research to monitor bacterial development over time.
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Affiliation(s)
- Trong Nguyen-Huu
- Unité EA 4707 Résistance Induite et Bioprotection des Plantes, SFR Condorcet FR Centre National de la Recherche Scientifique (CNRS) 3417, Université de Reims Champagne-Ardenne, Reims, France
| | - Jeanne Doré
- UMR Ecologie Microbienne, CNRS, National Research Institute for Agriculture, Food and Environment, VetAgro Sup, Université Claude-Bernard Lyon, Université de Lyon, F-69622 Villeurbanne, Lyon, France
| | - Essaïd Aït Barka
- Unité EA 4707 Résistance Induite et Bioprotection des Plantes, SFR Condorcet FR Centre National de la Recherche Scientifique (CNRS) 3417, Université de Reims Champagne-Ardenne, Reims, France
| | - Céline Lavire
- UMR Ecologie Microbienne, CNRS, National Research Institute for Agriculture, Food and Environment, VetAgro Sup, Université Claude-Bernard Lyon, Université de Lyon, F-69622 Villeurbanne, Lyon, France
| | - Christophe Clément
- Unité EA 4707 Résistance Induite et Bioprotection des Plantes, SFR Condorcet FR Centre National de la Recherche Scientifique (CNRS) 3417, Université de Reims Champagne-Ardenne, Reims, France
| | - Ludovic Vial
- UMR Ecologie Microbienne, CNRS, National Research Institute for Agriculture, Food and Environment, VetAgro Sup, Université Claude-Bernard Lyon, Université de Lyon, F-69622 Villeurbanne, Lyon, France
| | - Lisa Sanchez
- Unité EA 4707 Résistance Induite et Bioprotection des Plantes, SFR Condorcet FR Centre National de la Recherche Scientifique (CNRS) 3417, Université de Reims Champagne-Ardenne, Reims, France
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Loupit G, Prigent S, Franc C, De Revel G, Richard T, Cookson SJ, Fonayet JV. Polyphenol Profiles of Just Pruned Grapevine Canes from Wild Vitis Accessions and Vitis vinifera Cultivars. J Agric Food Chem 2020; 68:13397-13407. [PMID: 32227944 DOI: 10.1021/acs.jafc.9b08099] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Grapevine canes are an abundant byproduct of the wine industry. The stilbene contents of Vitis vinifera cultivars have been largely studied, but little is known about the stilbene contents of wild Vitis accessions. Moreover, there have only been few studies on the quantification of other phenolic compounds in just pruned grapevine canes. In our study, we investigated the polyphenol profile of 51 genotypes belonging to 15 Vitis spp. A total of 36 polyphenols (20 stilbenes, 6 flavanols, 7 flavonols, and 3 phenolic acids) were analyzed by high-performance liquid chromatography coupled with a triple quadrupole mass spectrometer. Our results suggest that some wild Vitis accessions could be of interest in terms of the concentration of bioactive polyphenols and that flavanols contribute significantly to the antioxidant activity of grapevine cane extracts. To the best of our knowledge, this is the most exhaustive study of the polyphenolic composition of grapevine canes of wild Vitis spp.
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Affiliation(s)
- Grégoire Loupit
- Ecophysiologie et Génomique Fonctionnelle de la Vigne (EGFV), Bordeaux Sciences Agro, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut des Sciences de la Vigne et du Vin (ISVV), Université de Bordeaux, 33882 Villenave d'Ornon, France
| | - Sylvain Prigent
- UMR 1332 Biologie du Fruit et Pathologie, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Centre INRAE de Nouvelle Aquitaine-Bordeaux, Avenue Edouard Bourlaux, 33140 Villenave d'Ornon, France
- Plateforme Bordeaux Metabolome, INRAE, Université de Bordeaux, CNRS, MetaboHUB, PHENOME-EMPHASIS, 33140 Villenave d'Ornon, France
| | - Céline Franc
- Université de Bordeaux, Unité de Recherche Oenologie, EA 4577, USC 1366 Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut des Sciences de la Vigne et du Vin (ISVV), 33882 Villenave d'Ornon France
| | - Gilles De Revel
- Université de Bordeaux, Unité de Recherche Oenologie, EA 4577, USC 1366 Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut des Sciences de la Vigne et du Vin (ISVV), 33882 Villenave d'Ornon France
| | - Tristan Richard
- Université de Bordeaux, Unité de Recherche Oenologie, EA 4577, USC 1366 Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut des Sciences de la Vigne et du Vin (ISVV), 33882 Villenave d'Ornon France
- Plateforme Bordeaux Metabolome, Université de Bordeaux, INRAE, CNRS, MetaboHUB, 33140 Villenave d'Ornon, France
| | - Sarah Jane Cookson
- Ecophysiologie et Génomique Fonctionnelle de la Vigne (EGFV), Bordeaux Sciences Agro, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut des Sciences de la Vigne et du Vin (ISVV), Université de Bordeaux, 33882 Villenave d'Ornon, France
| | - Josep Valls Fonayet
- Université de Bordeaux, Unité de Recherche Oenologie, EA 4577, USC 1366 Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut des Sciences de la Vigne et du Vin (ISVV), 33882 Villenave d'Ornon France
- Plateforme Bordeaux Metabolome, Université de Bordeaux, INRAE, CNRS, MetaboHUB, 33140 Villenave d'Ornon, France
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