Article
Microbiology
Marcelo Bustamante, Karina Elfar, Akif Eskalen
Summary: In this study, a large number of bacteria with inhibitory effects on grapevine trunk diseases were isolated from commercial vineyards in California. These bacteria were identified as Bacillus velezensis, Pseudomonas spp., and Serratia plymuthica, and they showed inhibition against various fungal pathogens in vitro. The results suggest that these bacteria may serve as potential biocontrol agents against grapevine trunk diseases.
Review
Plant Sciences
Rebeca Cobos, Ana Ibanez, Alba Diez-Galan, Carla Calvo-Pena, Seyedehtannaz Ghoreshizadeh, Juan Jose R. Coque
Summary: This article reviews the recent advances in the study of grapevine microbiome, with a focus on the composition of microbial populations and etiology of plants affected by grapevine trunk diseases (GTDs). It also discusses the potential of grapevine microbiome as a source for new and more promising biocontrol agents (BCAs) for GTD treatment.
Article
Agronomy
Guzman Carro-Huerga, Sara Mayo-Prieto, Alvaro Rodriguez-Gonzalez, Samuel Alvarez-Garcia, Santiago Gutierrez, Pedro A. Casquero
Summary: The study evaluated the growth of different native Trichoderma strains at different temperatures and their ability to colonize pruning wounds in adverse climatic conditions. It was found that native Trichoderma strains are better adapted to survive in a changing environment, and they could provide better protection for grapevine plants by co-evolving with each specific vineyard.
Article
Microbiology
Jinxz Pollard-Flamand, Julie Boule, Miranda Hart, Jose Ramon Urbez-Torres
Summary: This study identified several Trichoderma species from grapevines in British Columbia and evaluated their biocontrol activity against BD fungi. The results showed that these isolates were able to significantly inhibit the growth of fungal pathogens and provide protection for pruning wounds for up to 21 days. They also exhibited similar or better control compared to commercial products.
Article
Food Science & Technology
G. J. Makatini, F. Halleen, C. Mutawila, P. Moyo, L. Mostert
Summary: The study finds that grapevine trunk disease pathogens can infect vines through sucker wounds and wounds made by the removal of green shoots. The most common pathogens identified were Diaporthe ampelina, Diplodia seriata, and Phaeomoniella chlamydospora. Inoculation experiments on grapevine plants confirmed the susceptibility of sucker and green shoot wounds to different trunk disease pathogens.
SOUTH AFRICAN JOURNAL OF ENOLOGY AND VITICULTURE
(2023)
Article
Agronomy
Catarina Leal, David Gramaje, Florence Fontaine, Nicolas Richet, Patricia Trotel-Aziz, Josep Armengol
Summary: Grapevine trunk diseases (GTDs) cause significant economic losses in wine-producing countries. Researchers conducted nursery experiments using Trichoderma atroviride (Ta) SC1 and Bacillus subtilis (Bs) PTA-271, alone and in combination, to study their biocontrol effect on GTD pathogens. The results showed that these biological treatments reduced the infection rate and fungal isolation of GTD pathogens in grapevine nursery material.
PEST MANAGEMENT SCIENCE
(2023)
Article
Plant Sciences
Maria Chiara Rosace, Sara Elisabetta Legler, Irene Salotti, Vittorio Rossi
Summary: Pruning wounds are the main entry points for fungi causing grapevine trunk diseases (GTDs). A quantitative analysis of literature data was conducted to identify the factors that most affect the length of pruning wound susceptibility. The results showed that wound susceptibility is high at the time of pruning, and they remain susceptible to invasion by GTD fungi for months after pruning. The results increase our understanding of GTD epidemiology and should help growers control infections.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Microbiology
Andras Csoto, Csilla Kovacs, Karoly Pal, Antal Nagy, Ferenc Peles, Erzsebet Fekete, Levente Karaffa, Christian P. Kubicek, Erzsebet Sandor
Summary: In this study, the isolation, identification and characterization of ten endophytic Trichoderma isolates were reported. The ability of two different mixes of these isolates to colonize and stimulate grapevine growth was investigated. The results showed that the Trichoderma treatments significantly decreased the percentage of lost plants and increased the bud burst ratio and vigor index. These findings suggest that grapevine-endophytic Trichoderma isolates can promote plant growth and have potential applications in sustainable agriculture.
Article
Microbiology
Ana Romeo-Olivan, Justine Chervin, Coralie Breton, Thierry Lagravere, Jean Dayde, Bernard Dumas, Alban Jacques
Summary: Species of the Trichoderma genus have antifungal abilities and are of interest in agriculture. This study investigates the transcriptomic response of grapevine trunk to Vintec(R), a biocontrol agent. The results show differential modulation of gene expression involved in hormonal signaling and secondary metabolism, indicating that Vintec(R) induces wood responses that counteract disease development.
FRONTIERS IN MICROBIOLOGY
(2022)
Review
Plant Sciences
Filipe Azevedo-Nogueira, Cecilia Rego, Helena Maria Rodrigues Goncalves, Ana Margarida Fortes, David Gramaje, Paula Martins-Lopes
Summary: This review analyzes the current state of identification and detection of grapevine trunk diseases (GTDs) and emphasizes the urgent need for the development of new technologies. The current methods and protocols are relatively limited and further exploration and research are needed. New detection methods and practices will better control the spread of pathogens and improve vineyard management.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Horticulture
Mariana Patanita, Andre Albuquerque, Maria Doroteia Campos, Patrick Materatski, Carla M. R. Varanda, Joana A. Ribeiro, Maria do Rosario Felix
Summary: Grapevine trunk diseases (GTDs) are complex and challenging to identify and eradicate. This study investigated the fungal community structure associated with GTDs symptomatic and asymptomatic grapevines. The results showed that symptomatic plants had a lower abundance but higher diversity of GTDs-associated fungi. The composition of fungal endophytic communities was significantly different according to the symptomatology and not affected by the cultivar.
Article
Food Science & Technology
B. Henderson, M. R. Sosnowski, M. G. McCarthy, E. S. Scott
Summary: The study investigated the incidence and severity of Eutypa dieback in Shiraz grapevines, finding that cane pruning was more effective in reducing the disease compared to spur pruning, primarily by decreasing the surface area of pruning wounds.
AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH
(2021)
Article
Microbiology
Damola O. Adejoro, E. Eirian Jones, Hayley J. Ridgway, Dion C. Mundy, Bhanupratap R. Vanga, Simon R. Bulman
Summary: Grapevine trunk diseases (GTDs) pose a significant challenge to viticulture due to a lack of effective control measures. This study investigated the microbiome of grapevines with the disease escape phenotype, which remain healthy under high disease pressure. DNA metabarcoding analysis revealed significant differences in the microbiome of GTD escape vines compared to diseased vines, with higher abundance of Pseudomonas and Hymenobacter bacteria and differential associations of Aureobasidium and Rhodotorula fungi. This is the first report linking the GTD escape phenotype with the grapevine microbiome.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Microbiology
Stefano Di Marco, Elisa Giorgia Metruccio, Samuele Moretti, Marco Nocentini, Giuseppe Carella, Andrea Pacetti, Enrico Battiston, Fabio Osti, Laura Mugnai
Summary: Grapevine trunk diseases are common worldwide, especially in European vineyards. Protecting pruning wounds can reduce infections and diminish foliar symptoms. The application of Trichoderma can effectively protect grapevines and is environmentally friendly.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Plant Sciences
Oana-Alina Boiu-Sicuia, Radu Cristian Toma, Camelia Filofteia Diguta, Florentina Matei, Calina Petruta Cornea
Summary: Romania has a long history of grapevine culturing and winemaking, but viticulture faces devastating biological threats from grapevine trunk diseases (GTDs) and grape spoilage. Many countries, including Romania, have shifted towards sustainable biocontrol strategies to replace toxic chemical inputs. B. velezensis strains show strong antifungal activity against grape and grapevine fungal pathogens, making them suitable for grapevine biologic control.
Editorial Material
Plant Sciences
P. Moyo, L. Mostert, R. Dedekind, W. J. van Jaarsveld, R. Pierron, F. Halleen
Article
Agronomy
Wynand J. van Jaarsveld, Francois Halleen, Michael C. Bester, Romain J. G. Pierron, Elodie Stempien, Lizel Mostert
Summary: The results of the experiment showed that different treatments of Trichoderma significantly reduced black foot infections in the rootstock bases of the vines in only one season. The colonization of Trichoderma was significantly higher in the base and collar roots compared to the middle and root tip parts, with significantly less BFD pathogens isolated from the base than the roots. The dipping of basal ends in the dry formulation followed by monthly soil drenches consistently gave higher colonization, while the 1-hour soak of the bases of vines was not effective.
PEST MANAGEMENT SCIENCE
(2021)
Article
Plant Sciences
Meagan van Dyk, Christoffel F. J. Spies, Lizel Mostert, Francois Halleen
Summary: Multiple potential trunk pathogens were found in olive nurseries in South Africa, with additional infections occurring during the propagation process. Management strategies should focus on preventing and eliminating infections in mother blocks, as well as ensuring that pathogen-free material is delivered to producers during the propagation process.
Article
Mycology
C. F. J. Spies, L. Mostert, A. Carlucci, P. Moyo, W. J. van Jaarsveld, I. L. du Plessis, M. van Dyk, F. Halleen
Article
Mycology
P. W. Crous, D. A. Cowan, G. Maggs-Kolling, N. Yilmaz, E. Larsson, C. Angelini, T. E. Brandrud, J. D. W. Dearnaley, B. Dima, F. Dovana, N. Fechner, D. Garcia, J. Gene, R. E. Halling, J. Houbraken, P. Leonard, J. J. Luangsa-ard, W. Noisripoom, A. E. Rea-Ireland, H. Sevcikova, C. W. Smyth, A. Vizzini, J. D. Adam, G. C. Adams, A. Alexandrova, A. Alizadeh, E. Alvarez Duarte, V Andjic, V Antonin, F. Arenas, R. Assabgui, J. Ballara, A. Banwell, A. Berraf-Tebbal, V. K. Bhatt, G. Bonito, W. Botha, T. Burgess, J. Calvert, L. C. Carvalhais, R. Courtecuisse, P. Cullington, N. Davoodian, C. A. Decock, R. Dimitrov, S. Di Piazza, A. Drenth, S. Dumez, A. Eichmeier, J. Etayo, I Fernandez, J-P Fiard, J. Fournier, S. Fuentes-Aponte, M. A. T. Ghanbary, G. Ghorbani, A. Giraldo, A. M. Glushakova, D. E. Gouliamova, J. Guarro, F. Halleen, F. Hampe, M. Hernandez-Restrepo, I. Iturrieta-Gonzalez, M. Jeppson, A. Kachalkin, O. Karimi, A. N. Khalid, A. Khonsanit, J. Kim, K. Kim, M. Kiran, I Krisai-Greilhuber, V Kucera, I Kusan, S. D. Langenhoven, T. Lebel, R. Lebeuf, K. Liimatainen, C. Linde, D. L. Lindner, L. Lombard, A. E. Mahamedi, A. Maxwell, T. W. May, A. R. McTaggart, M. Meijer, A. Mesic, A. J. Mileto, A. N. Miller, A. Molia, S. Mongkolsamrit, C. Munoz Cortes, J. Munoz-Mohedano, A. Morte, O. Morozova, L. Mostert, R. MostowfizadehGhalamfarsa, L. G. Nagy, A. Navarro-Rodenas, L. Orstadius, B. E. Overton, V Papp, R. Para, U. Peintner, T. H. G. Pham, A. Pordel, A. Posta, A. Rodriguez, M. Romberg, M. Sandoval-Denis, K. A. Seifert, K. C. Semwal, B. J. Sewall, R. G. Shivas, M. Slovak, K. Smith, M. Spetik, C. F. J. Spies, K. Syme, K. Tasanathai, R. G. Thorn, Z. Tkalcec, M. A. Tomashevskaya, D. Torres-Garcia, Z. Ullah, C. M. Visagie, A. Voitk, L. M. Winton, J. Z. Groenewald
Article
Plant Sciences
Rhona van der Merwe, Francois Halleen, Meagan van Dyk, Vernon Guy Jacobs, Lizel Mostert
Summary: Research identified canker and wood rot fungal pathogens in nursery stone fruit trees and propagation material, which can harbor latent infections. Different management practices are needed to prevent these infections and ensure healthier stone fruit nursery trees.
Article
Plant Sciences
Meagan van Dyk, Christoffel F. J. Spies, Lizel Mostert, Marieta van der Rijst, Ihan L. du Plessis, Providence Moyo, Wynand J. van Jaarsveld, Francois Halleen
Summary: A recent survey in South Africa identified several fungi associated with olive trunk disease symptoms, some of which had not been reported before. Pathogenicity tests were conducted to determine the virulence of these species, with some showing significant lesions on olive branches. Pseudophaeomoniella globosa was identified as one of the main olive trunk pathogens due to its high incidence and virulence in trials.
Article
Plant Sciences
Gonzalo A. Diaz, Adrian Valdez, Francois Halleen, Enrique Ferrada, Mauricio Lolas, Bernardo A. Latorre
Summary: The incidence of Botryosphaeria cankers and dieback in apple trees has increased in central Chile. This study identified the species of Botryosphaeriaceae associated with the disease and their pathogenicity. Diplodia mutila, D. seriata, Lasiodiplodia theobromae, and Neofusicoccum arbuti were found to be the main pathogens causing canker and dieback symptoms.
Article
Plant Sciences
Meagan Van Dyk, Christoffel F. J. Spies, Lizel Mostert, Francois Halleen
Summary: This study reveals that pruning debris serves as an inoculum source of P. globosa in established olive orchards in South Africa. It emphasizes the importance of reducing the inoculum sources of this pathogen as an additional management strategy against olive trunk diseases.
Article
Plant Sciences
F. Halleen, M. Havenga, A. McLeod, L. Mostert
Article
Ecology
Minette Havenga, Francois Halleen, Annabella Baloyi, Michael Bester, Celeste C. Linde, Lizel Mostert
Summary: This study investigated the genetic diversity and recombination potential of eight populations of the grapevine pathogen Phaeoacremonium minimum in South Africa. The results showed that the pathogen primarily spreads through asexual reproduction, but there is also potential for multiple introductions of different genotypes over time. Additionally, infected rootstock mother blocks could contribute to the spread of more genotypes to newly established vineyards, highlighting the importance of monitoring the health status of rootstock mother blocks and implementing appropriate management strategies.
Article
Agronomy
Kabo Mojeremane, Palesa Lebenya, Ihan L. du Plessis, Marieta van der Rijst, Lizel Mostert, Josep Armengol, Francois Halleen
PHYTOPATHOLOGIA MEDITERRANEA
(2020)
Article
Agronomy
Elodie Stempien, Romain Jean Gaston Pierron, Ilka Adendorff, Wynand Jacobus van Jaarsveld, Francois Halleen, Lizel Mostert
PHYTOPATHOLOGIA MEDITERRANEA
(2020)
