1
|
Peng J, Wang X, Wang H, Li X, Zhang Q, Wang M, Yan J. Advances in understanding grapevine downy mildew: From pathogen infection to disease management. Mol Plant Pathol 2024; 25:e13401. [PMID: 37991155 PMCID: PMC10788597 DOI: 10.1111/mpp.13401] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 09/29/2023] [Indexed: 11/23/2023]
Abstract
Plasmopara viticola is geographically widespread in grapevine-growing regions. Grapevine downy mildew disease, caused by this biotrophic pathogen, leads to considerable yield losses in viticulture annually. Because of the great significance of grapevine production and wine quality, research on this disease has been widely performed since its emergence in the 19th century. Here, we review and discuss recent understanding of this pathogen from multiple aspects, including its infection cycle, disease symptoms, genome decoding, effector biology, and management and control strategies. We highlight the identification and characterization of effector proteins with their biological roles in host-pathogen interaction, with a focus on sustainable control methods against P. viticola, especially the use of biocontrol agents and environmentally friendly compounds.
Collapse
Affiliation(s)
- Junbo Peng
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Xuncheng Wang
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Hui Wang
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Xinghong Li
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Qi Zhang
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Meng Wang
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Jiye Yan
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North ChinaInstitute of Plant Protection, Beijing Academy of Agriculture and Forestry SciencesBeijingChina
| |
Collapse
|
2
|
Bakacsy L, Sípos L, Barta A, Stefkó D, Vasas A, Szepesi Á. Concentration-dependent effects of effusol and juncusol from Juncus compressus on seedling development of Arabidopsis thaliana. Sci Rep 2022; 12:13870. [PMID: 35974076 PMCID: PMC9381551 DOI: 10.1038/s41598-022-18063-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 08/04/2022] [Indexed: 11/15/2022] Open
Abstract
Juncus species are valuable sources of phenanthrene compounds that have been used in traditional Chinese medicine for thousands of years. Effusol and juncusol are the most investigated compounds reported to have antimicrobial and anticancer effects; however, to date, their effects on higher plants have not been investigated. In this study, we examined the effects of effusol and juncusol on the growth and other biochemical parameters of the dicot model plant Arabidopsis thaliana in a concentration-dependent manner with a focus on polyamine metabolism. Phenanthrene induced toxic effects on plant growth and development, while effusol and juncusol induced higher biomass and maintained antioxidant defence mechanisms associated with reduced polyamine degradation. Taken together, our results suggest that these compounds could be good candidates for new biopesticide or biostimulant plant growth regulators in the future.
Collapse
Affiliation(s)
- László Bakacsy
- Department of Plant Biology, Institute of Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52., Szeged, 6726, Hungary
| | - Lilla Sípos
- Department of Plant Biology, Institute of Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52., Szeged, 6726, Hungary
| | - Anita Barta
- Department of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, Szeged, 6720, Hungary
| | - Dóra Stefkó
- Department of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, Szeged, 6720, Hungary
| | - Andrea Vasas
- Department of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, Szeged, 6720, Hungary
| | - Ágnes Szepesi
- Department of Plant Biology, Institute of Biology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52., Szeged, 6726, Hungary.
| |
Collapse
|
3
|
Heng MY, Thuerig B, Danton O, Ramseyer J, Gupta MP, Tamm L, Hamburger M, Potterat O. Ingadosides A-C, acacic acid-type saponins from Inga sapindoides with potent inhibitory activity against downy mildew. Phytochemistry 2022; 199:113183. [PMID: 35398089 DOI: 10.1016/j.phytochem.2022.113183] [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] [Received: 10/07/2021] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
As part of a project aiming at the discovery of environmentally friendly alternatives to copper in organic agriculture, a 96% ethanolic extract from the leaves of Inga sapindoides showed potent inhibitory activity against grapevine downy mildew (Plasmopara viticola) in vitro (MIC100 25 μg/mL). Separation of the n-BuOH soluble fraction by silica gel column chromatography followed by a combination of RP18 and HILIC HPLC resulted in the isolation of a series of bidesmosidic saponins characterized by the presence of a monoterpenoid unit attached to a triterpenoid aglycone, a p-methoxycinnamoyl residue, and rare sugar residues such as N-acetyl-d-glucosamine, d-quinovose, and d-fucose. The isolated compounds inhibited the formation or activity of P. viticola zoospores with MIC100 values of 3 or 6 μg/mL, respectively. I. sapindoides, a tree which is often cultivated for shading coffee plantations in Central America, may represent a sustainable source of fungicidal products to be used in the replacement of copper.
Collapse
Affiliation(s)
- Ming Yuan Heng
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Barbara Thuerig
- Research Institute of Organic Agriculture FiBL, Ackerstrasse 113, 5070, Frick, Switzerland
| | - Ombeline Danton
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Justine Ramseyer
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Mahabir P Gupta
- Center for Pharmacognostic Research on Panamanian Flora, Faculty of Pharmacy, University of Panama City, Panama
| | - Lucius Tamm
- Research Institute of Organic Agriculture FiBL, Ackerstrasse 113, 5070, Frick, Switzerland
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Olivier Potterat
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland.
| |
Collapse
|
4
|
Koledenkova K, Esmaeel Q, Jacquard C, Nowak J, Clément C, Ait Barka E. Plasmopara viticola the Causal Agent of Downy Mildew of Grapevine: From Its Taxonomy to Disease Management. Front Microbiol 2022; 13:889472. [PMID: 35633680 PMCID: PMC9130769 DOI: 10.3389/fmicb.2022.889472] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/19/2022] [Indexed: 01/25/2023] Open
Abstract
Plasmopara viticola (P. viticola, Berk. & M. A. Curtis; Berl. & De Toni) causing grapevine downy mildew is one of the most damaging pathogens to viticulture worldwide. Since its recognition in the middle of nineteenth century, this disease has spread from America to Europe and then to all grapevine-growing countries, leading to significant economic losses due to the lack of efficient disease control. In 1885 copper was found to suppress many pathogens, and is still the most effective way to control downy mildews. During the twentieth century, contact and penetrating single-site fungicides have been developed for use against plant pathogens including downy mildews, but wide application has led to the appearance of pathogenic strains resistant to these treatments. Additionally, due to the negative environmental impact of chemical pesticides, the European Union restricted their use, triggering a rush to develop alternative tools such as resistant cultivars breeding, creation of new active ingredients, search for natural products and biocontrol agents that can be applied alone or in combination to kill the pathogen or mitigate its effect. This review summarizes data about the history, distribution, epidemiology, taxonomy, morphology, reproduction and infection mechanisms, symptoms, host-pathogen interactions, host resistance and control of the P. viticola, with a focus on sustainable methods, especially the use of biocontrol agents.
Collapse
Affiliation(s)
- Kseniia Koledenkova
- Université de Reims Champagne Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, Reims, France
| | - Qassim Esmaeel
- Université de Reims Champagne Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, Reims, France
| | - Cédric Jacquard
- Université de Reims Champagne Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, Reims, France
| | - Jerzy Nowak
- School of Plant and Environmental Sciences, Virginia Polytechnic Institute and State University, Saunders Hall, Blacksburg, VA, United States
| | - Christophe Clément
- Université de Reims Champagne Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, Reims, France
| | - Essaid Ait Barka
- Université de Reims Champagne Ardenne, RIBP EA4707 USC INRAE 1488, SFR Condorcet FR CNRS 3417, Reims, France
| |
Collapse
|
5
|
Kraus C, Abou-Ammar R, Schubert A, Fischer M. Warburgia ugandensis Leaf and Bark Extracts: An Alternative to Copper as Fungicide against Downy Mildew in Organic Viticulture? Plants (Basel) 2021; 10:plants10122765. [PMID: 34961234 PMCID: PMC8706306 DOI: 10.3390/plants10122765] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
In organic viticulture, copper-based fungicides are commonly used to suppress Downy Mildew infection, caused by the oomycete Plasmopara viticola. However, the frequent and intensive use of such fungicides leads to accumulation of the heavy metal in soil and nearby waters with adverse effects on the ecosystem. Therefore, alternative, organic fungicides against Downy Mildew are urgently needed to reduce the copper load in vineyards. In this study, the use of Warburgia ugandensis Sprague (Family Canellacea) leaf and bark extracts as potential fungicides against Downy Mildew were evaluated. In vitro (microtiter) and in vivo (leaf discs, seedlings) tests were conducted, as well as field trials to determine the efficacy of the extracts against Downy Mildew. The results revealed an MIC100 of 500 µg/mL for the leaf extract and 5 µg/mL for the bark extract. Furthermore, experiments with leaf discs and seedlings demonstrated a strong protective effect of the extracts for up to 48 h under (semi-) controlled conditions. However, in field trials the efficacy of the extracts distinctly declined, regardless of the extracts' origin and concentration.
Collapse
Affiliation(s)
- Christian Kraus
- Julius Kühn-Institute, Federal Research Centre of Cultivated Plants, Plant Protection in Fruit Crops and Viticulture, 76833 Siebeldingen, Germany;
| | - Rada Abou-Ammar
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), 04103 Leipzig, Germany; (R.A.-A.); (A.S.)
| | - Andreas Schubert
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), 04103 Leipzig, Germany; (R.A.-A.); (A.S.)
| | - Michael Fischer
- Julius Kühn-Institute, Federal Research Centre of Cultivated Plants, Plant Protection in Fruit Crops and Viticulture, 76833 Siebeldingen, Germany;
| |
Collapse
|
6
|
Wei H, Zhang F, Wang J, Zhao M, Hou T, Li L. Dehydroeffusol inhibits hypoxia-induced epithelial-mesenchymal transition in non-small cell lung cancer cells through the inactivation of Wnt/β-catenin pathway. Biosci Rep 2020; 40:BSR20194284. [PMID: 32426814 PMCID: PMC7256677 DOI: 10.1042/bsr20194284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/06/2020] [Accepted: 05/18/2020] [Indexed: 01/02/2023] Open
Abstract
Dehydroeffusol (DHE) is a phenanthrene compound that possesses anti-tumor activity. However, the effect of DHE on non-small cell lung cancer (NSCLC) has not been investigated previously. Therefore, the objective of our study was to explore the role of DHE in NSCLC and the underlying mechanism. Our results showed that DHE significantly inhibited the cell viability of A549 cells in a dose- and time-dependent manner under normoxic condition. Moreover, A549 cells were more sensitive to DHE under hypoxic condition compared with the A549 cells cultured in normoxic condition. Hypoxia-induced increased migration and invasion abilities were mitigated by DHE in A549 cells. Treatment of DHE caused increased E-cadherin expression and decreased N-cadherin expression in hypoxia-induced A549 cells. DHE also suppressed hypoxia-induced increase in both protein and mRNA levels of hypoxia inducible factor-1α (HIF-1α) expression in A549 cells. Furthermore, DHE inhibited hypoxia-induced activation of Wnt/β-catenin pathway in A549 cells. The inhibitory effect of DHE on hypoxia-induced EMT was reversed by LiCl, which is an activator of Wnt/β-catenin signaling pathway. In conclusion, these findings demonstrated that DHE prevented hypoxia-induced EMT in NSCLC cells by inhibiting the activation of Wnt/β-catenin pathway, suggesting that DHE might serve as a therapeutic target for the NSCLC metastasis.
Collapse
MESH Headings
- A549 Cells
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antineoplastic Agents, Phytogenic/pharmacology
- Cadherins/genetics
- Cadherins/metabolism
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Movement/drug effects
- Epithelial-Mesenchymal Transition/drug effects
- Gene Expression Regulation, Neoplastic
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Neoplasm Invasiveness
- Phenanthrenes/pharmacology
- Tumor Hypoxia
- Wnt Signaling Pathway/drug effects
Collapse
Affiliation(s)
- Haitao Wei
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, P.R. China
| | - Feng Zhang
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, P.R. China
| | - Jiali Wang
- Operating Room, Huaihe Hospital of Henan University, Kaifeng 475000, P.R. China
| | - Min Zhao
- Department of Respiratory, Huaihe Hospital of Henan University, Kaifeng 475000, P.R. China
| | - Tao Hou
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, P.R. China
| | - Li Li
- College of Nursing and Health, Henan University, Kaifeng 475001, P.R. China
| |
Collapse
|
7
|
Krzciuk K, Gałuszka A. Seasonal changes in concentrations of trace elements and rare earth elements in shoot samples of Juncus effusus L. collected from natural habitats in the Holy Cross Mountains, south-central Poland. Chemosphere 2019; 219:954-960. [PMID: 30682761 DOI: 10.1016/j.chemosphere.2018.12.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 06/09/2023]
Abstract
Selected trace elements (Ag, As, Ba, Bi, Cd, Co, Cr, Mn, Cu, Fe, Ni, Pb, Tl, U, Zn) and rare earth elements were determined in 13 samples of Juncus effusus collected from three investigation sites in the Holy Cross Mts., south-central Poland. Sampling was carried out four times during a vegetative season of 2014. Almost all the elements examined showed different seasonal trends in their concentrations, except for Ag, Co and Ni. Maximum concentrations of Ag in samples of three investigation sites were found in May (0.068, 0.062, 0.047 mg/kg) whereas Co (0.124, 0.070, 0.079 mg/kg) and Ni (1.8, 0.998, 2.8 mg/kg) in July, respectively. Mean concentrations of Mn and Cd were higher in shoots (558 and 2.35 mg/kg) than in roots (435 and 1.7 mg/kg). Both these elements revealed much higher concentrations in J. effusus than their typical contents in plant samples. Principal component method allowed us to allocate Ni, Ba, Cd and Cu to one group with the highest positive loadings. The most probable explanation for this correlation is that bioavailability of these metals is increased by J. effusus through a release of oxygen to the rhizosphere. Light rare earth elements concentrations predominate over heavy rare earth elements in the samples examined. A fractionation of lanthanides occurs during their transport from roots to shoots, although this transport is rather limited. All shoot samples have a strong positive Eu anomaly.
Collapse
Affiliation(s)
- Karina Krzciuk
- Geochemistry and the Environment Div., Institute of Chemistry, Jan Kochanowski University, 15G Świętokrzyska St, 25-406, Kielce, Poland.
| | - Agnieszka Gałuszka
- Geochemistry and the Environment Div., Institute of Chemistry, Jan Kochanowski University, 15G Świętokrzyska St, 25-406, Kielce, Poland
| |
Collapse
|
8
|
Porsche FM, Molitor D, Beyer M, Charton S, André C, Kollar A. Antifungal Activity of Saponins from the Fruit Pericarp of Sapindus mukorossi against Venturia inaequalis and Botrytis cinerea. Plant Dis 2018; 102:991-1000. [PMID: 30673376 DOI: 10.1094/pdis-06-17-0906-re] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The antifungal activity of an aqueous extract (AE) and the solid fraction of a chloroform-methanol fruit pericarp extract (CME) of Sapindus mukorossi resolved in water was tested for the first time against Venturia inaequalis and Botrytis cinerea-two important fungal pathogens worldwide. In the greenhouse, a CME (1% vol/vol) spray significantly reduced V. inaequalis symptoms and sporulation (99%) on apple seedling leaves (P ≤ 0.05). In field trials, applications of AE (1% vol/vol) reduced the disease severity of B. cinerea on grape, on average, by 63%. Extracts were fractionated by high-performance liquid chromatography and the bioefficacy of the fractions was tested in vitro. Some components of the most fungicidal fraction were identified by liquid chromatography-high resolution mass spectrometry as saponins: sapindoside B (accounting for ≥98% of the total constituents), hederagenin-pentosylhexoside, and oleanolic acid-hexosyl-deoxyhexosyl-hexoside. This fraction inhibited the mycelial growth of V. inaequalis and B. cinerea by 45 and 43%, respectively.
Collapse
Affiliation(s)
- Franziska M Porsche
- Julius Kühn-Institute, Federal Research Center for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, 69221 Dossenheim, Germany
| | - Daniel Molitor
- Luxembourg Institute of Science and Technology, Environmental Research and Innovation Department, 4422 Belvaux, Luxembourg
| | - Marco Beyer
- Luxembourg Institute of Science and Technology, Environmental Research and Innovation Department, 4422 Belvaux, Luxembourg
| | - Sophie Charton
- Luxembourg Institute of Science and Technology, Environmental Research and Innovation Department, 4422 Belvaux, Luxembourg
| | - Christelle André
- Luxembourg Institute of Science and Technology, Environmental Research and Innovation Department, 4422 Belvaux, Luxembourg
| | - Andreas Kollar
- Julius Kühn-Institute, Federal Research Center for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture
| |
Collapse
|
9
|
Thuerig B, James EE, Schärer HJ, Langat MK, Mulholland DA, Treutwein J, Kleeberg I, Ludwig M, Jayarajah P, Giovannini O, Markellou E, Tamm L. Reducing copper use in the environment: the use of larixol and larixyl acetate to treat downy mildew caused by Plasmopara viticola in viticulture. Pest Manag Sci 2018; 74:477-488. [PMID: 28905481 DOI: 10.1002/ps.4733] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/23/2017] [Accepted: 09/08/2017] [Indexed: 05/14/2023]
Abstract
BACKGROUND Plant extracts might provide sustainable alternatives to copper fungicides, which are still widely used despite their unfavourable ecotoxicological profile. Larch bark extract and its constituents, larixyl acetate and larixol, have been shown to be effective against grapevine downy mildew (Plasmopara viticola) under semi-controlled conditions. The aim of this study was to reduce the gap between innovation and the registration of a marketable product, namely to develop scalable extraction processes and to evaluate and optimise the performance of larch extracts under different conditions. RESULTS Toxicologically and technically acceptable solvents like ethanol were used to extract the active compounds larixyl acetate and larixol from bark in sufficient amounts and their combined concentration could be increased by up to 39% by purification steps. The combined concentration of larixyl acetate and larixol from larch turpentine could be increased by up to 66%. The Minimal Inhibitory Concentration (MIC100 ) against P. viticola in vitro (6-23 µg mL-1 ) and the Effective Concentration (EC50 ) in planta under semi-controlled conditions (0.2-0.4 mg mL-1 ) were promising compared with other plant extracts. In vineyards, efficacies of larch extracts reached up to 68% in a stand-alone strategy and 84% in low-copper strategies. CONCLUSION Larch extracts represent valid candidates for copper reduction in organic vineyards, and their development into a sustainable plant protection product might be feasible. © 2017 Society of Chemical Industry.
Collapse
Affiliation(s)
- Barbara Thuerig
- Research Institute of Organic Agriculture FiBL, Frick, Switzerland
| | - Emily E James
- Natural Products Research Group, Department of Chemistry, University of Surrey, UK
| | | | - Moses K Langat
- Natural Products Research Group, Department of Chemistry, University of Surrey, UK
| | - Dulcie A Mulholland
- Natural Products Research Group, Department of Chemistry, University of Surrey, UK
| | | | | | - Mathias Ludwig
- Research Institute of Organic Agriculture FiBL, Frick, Switzerland
| | - Praveen Jayarajah
- Natural Products Research Group, Department of Chemistry, University of Surrey, UK
| | - Oscar Giovannini
- Fondazione Edmund Mach di San Michele all'Adige FEM, S. Michele all'Adige, Italy
| | | | - Lucius Tamm
- Research Institute of Organic Agriculture FiBL, Frick, Switzerland
| |
Collapse
|
10
|
Krzyzaniak Y, Trouvelot S, Negrel J, Cluzet S, Valls J, Richard T, Bougaud A, Jacquens L, Klinguer A, Chiltz A, Adrian M, Héloir MC. A Plant Extract Acts Both as a Resistance Inducer and an Oomycide Against Grapevine Downy Mildew. Front Plant Sci 2018; 9:1085. [PMID: 30090107 PMCID: PMC6068391 DOI: 10.3389/fpls.2018.01085] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 07/05/2018] [Indexed: 05/20/2023]
Abstract
Protecting vineyards from cryptogamic diseases such as downy mildew, caused by Plasmopara viticola, generally requires a massive use of phytochemicals. However, the issues on unintentional secondary effects on environment and human health, and the occurrence of P. viticola resistant strains, are leading to the development of alternative strategies, such as the use of biocontrol products. In this paper, we evidenced the ability of a plant extract to protect grapevine from P. viticola. Further experiments carried out both on cell suspensions and on plants revealed that plant extract activates typical defense-related responses such as the production of H2O2, the up-regulation of genes encoding pathogenesis-related proteins and stilbene synthase, as well as the accumulation of resveratrol or its derivative piceid. We also brought to light a strong direct effect of PE on the release and motility of P. viticola zoospores. Furthermore, we found out that PE application left dried residues on leaf surface, impairing zoospores to reach stomata. Altogether, our results highlight the different modes of action of a new biocontrol product able to protect grapevine against downy mildew.
Collapse
Affiliation(s)
- Yuko Krzyzaniak
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Sophie Trouvelot
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Jonathan Negrel
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Stéphanie Cluzet
- Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, EA 4577, Institut National de la Recherche Agronomique, USC 1366, Unité de Recherche Œnologie, Villenave d’Ornon, France
| | - Josep Valls
- Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, EA 4577, Institut National de la Recherche Agronomique, USC 1366, Unité de Recherche Œnologie, Villenave d’Ornon, France
| | - Tristan Richard
- Université de Bordeaux, Institut des Sciences de la Vigne et du Vin, EA 4577, Institut National de la Recherche Agronomique, USC 1366, Unité de Recherche Œnologie, Villenave d’Ornon, France
| | - Ambrine Bougaud
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Lucile Jacquens
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Agnès Klinguer
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Annick Chiltz
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Marielle Adrian
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
| | - Marie-Claire Héloir
- UMR 1347 Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Bourgogne Franche-Comté, Dijon, France
- *Correspondence: Marie-Claire Héloir,
| |
Collapse
|
11
|
Ramseyer J, Thuerig B, De Mieri M, Schärer HJ, Oberhänsli T, Gupta MP, Tamm L, Hamburger M, Potterat O. Eudesmane Sesquiterpenes from Verbesina lanata with Inhibitory Activity against Grapevine Downy Mildew. J Nat Prod 2017; 80:3296-3304. [PMID: 29200294 DOI: 10.1021/acs.jnatprod.7b00868] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An in-house library of more than 3000 extracts of plant and fungal origin was screened against some major plant pathogens. As one of the hits, an ethyl acetate extract from inflorescences of Verbesina lanata showed significant inhibitory activity in vitro against grapevine downy mildew (Plasmopara viticola), with a MIC100 value of 35 μg/mL. An emulsifiable concentrate formulation with 50 mg/g of the extract was developed for in vivo evaluation. A suspension of the formulation containing 1 mg/mL of extract lowered leaf surface infection of grapevine seedling by 82% compared to the nontreated control. With the aid of HPLC-based activity profiling, the antifungal activity was correlated with a series of lipophilic compounds. Preparative isolation by a combination of chromatographic techniques afforded 16 eudesmane sesquiterpenes including eight new congeners. Nine compounds were obtained in sufficient quantities to be tested in vitro and were found to inhibit the zoospore activity of P. viticola with MIC100 values ranging from 4 to 50 μg/mL. The two major compounds, 6β-cinnamoyloxy-4β,9β,15-trihydroxyeudesmane (9) and 6β-cinnamoyloxy-1β,15-dihydroxyeudesm-4-en-3-one (13), showed MIC100 values of 5 and 31 μg/mL, respectively.
Collapse
Affiliation(s)
- Justine Ramseyer
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Barbara Thuerig
- Research Institute of Organic Agriculture FiBL, Department of Crop Sciences , Ackerstrasse 113, 5070 Frick, Switzerland
| | - Maria De Mieri
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Hans-Jakob Schärer
- Research Institute of Organic Agriculture FiBL, Department of Crop Sciences , Ackerstrasse 113, 5070 Frick, Switzerland
| | - Thomas Oberhänsli
- Research Institute of Organic Agriculture FiBL, Department of Crop Sciences , Ackerstrasse 113, 5070 Frick, Switzerland
| | - Mahabir P Gupta
- Center for Pharmacognostic Research on Panamanian Flora, Faculty of Pharmacy, University of Panama , Panama City, Republic of Panama
| | - Lucius Tamm
- Research Institute of Organic Agriculture FiBL, Department of Crop Sciences , Ackerstrasse 113, 5070 Frick, Switzerland
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Olivier Potterat
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
| |
Collapse
|
12
|
Gabaston J, Richard T, Cluzet S, Palos Pinto A, Dufour MC, Corio-Costet MF, Mérillon JM. Pinus pinaster Knot: A Source of Polyphenols against Plasmopara viticola. J Agric Food Chem 2017; 65:8884-8891. [PMID: 28925259 DOI: 10.1021/acs.jafc.7b04129] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 05/26/2023]
Abstract
Pine knot extract from Pinus pinaster byproducts was characterized by UHPLC-DAD-MS and NMR. Fourteen polyphenols divided into four classes were identified as follows: lignans (nortrachelogenin, pinoresinol, matairesinol, isolariciresinol, secoisolariciresinol), flavonoids (pinocembrin, pinobanksin, dihydrokaempferol, taxifolin), stilbenes (pinosylvin, pinosylvin monomethyl ether, pterostilbene), and phenolic acids (caffeic acid, ferulic acid). The antifungal potential of pine knot extract, as well as the main compounds, was tested in vitro against Plasmopara viticola. The ethanolic extract showed a strong antimildew activity. In addition, pinosylvins and pinocembrin demonstrated significant inhibition of zoospore mobility and mildew development. These findings strongly suggest that pine knot is a potential biomass that could be used as a natural antifungal product.
Collapse
Affiliation(s)
- Julien Gabaston
- Université de Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (Gesvab)-Institut des Sciences de la Vigne et du Vin , CS 50008, 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Tristan Richard
- Université de Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (Gesvab)-Institut des Sciences de la Vigne et du Vin , CS 50008, 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Stéphanie Cluzet
- Université de Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (Gesvab)-Institut des Sciences de la Vigne et du Vin , CS 50008, 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Antonio Palos Pinto
- Université de Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (Gesvab)-Institut des Sciences de la Vigne et du Vin , CS 50008, 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| | - Marie-Cécile Dufour
- INRA, UMR SAVE 1065, ISVV, Labex Cote , CS 20032, Rue Edouard Bourlaux, 33882 Villenave d'Ornon, France
| | - Marie-France Corio-Costet
- INRA, UMR SAVE 1065, ISVV, Labex Cote , CS 20032, Rue Edouard Bourlaux, 33882 Villenave d'Ornon, France
| | - Jean-Michel Mérillon
- Université de Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de Recherche Œnologie EA 4577, USC 1366 INRA, Equipe Molécules d'Intérêt Biologique (Gesvab)-Institut des Sciences de la Vigne et du Vin , CS 50008, 210, chemin de Leysotte, 33882 Villenave d'Ornon, France
| |
Collapse
|