Article
Ecology
Mark R. Sosnowski, Matthew R. Ayres, Regina Billones-Baaijens, Sandra Savocchia, Eileen S. Scott
Summary: This study evaluated the susceptibility of grapevine pruning wounds in different regions of Australia. It found that the wounds were most susceptible immediately after pruning, followed by a rapid decrease in susceptibility over the next 14 days. Delaying pruning to late winter may reduce the risk of infection by Eutypa lata.
Article
Plant Sciences
Pedro Reis, Ana Gaspar, Artur Alves, Florence Fontaine, Cecilia Rego
Summary: This study assessed the response of selected Portuguese grapevine cultivars to Lasiodiplodia species. The results showed that Portuguese isolates were more aggressive than those from Peru, and 'Touriga Nacional' had the largest lesions among the cultivars inoculated.
Article
Plant Sciences
Olivier Fernandez, Christelle Lemaitre-Guillier, Aurelie Songy, Guillaume Robert-Siegwald, Marc-Henri Lebrun, Philippe Schmitt-Kopplin, Philippe Larignon, Marielle Adrian, Florence Fontaine
Summary: Grapevine trunk diseases pose a global threat to vineyards. These diseases are caused by multiple pathogenic microorganisms and have a long latent phase. Combined abiotic stresses exacerbate disease symptoms, especially with less virulent pathogens.
Article
Food Science & Technology
M. R. Sosnowski, R. Ayres, G. Mccarthy, E. S. Scott
Summary: The study investigated the susceptibility of 174 winegrape cultivars to Eutypa lata and Diplodia seriata in the Barossa Valley, South Australia, revealing significant variability among cultivars and differences in pathogen colonisation. Muscadelle was found to be most resistant while Sauvignonasse was the most susceptible, indicating potential for informed disease management strategies and breeding programs in the future.
AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH
(2022)
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
Food Science & Technology
Peipei Wang, Aishui Yu, Xinglong Ji, Qian Mu, Muhammad Salman Haider, Ruonan Wei, Xiangpeng Leng, Jinggui Fang
Summary: This study reveals the regulatory mechanisms of ethylene in the ripening of non-climacteric grapevine berries. Ethylene treatment stimulates fruit color, anthocyanin accumulation, ABA biosynthesis, and sugar accumulation, while inhibiting cellulose synthesis and promoting pectin degradation. The study also confirms the involvement of ethylene biosynthesis and signaling genes in fruit ripening.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Food Science & Technology
M. R. Ayres, R. Billones-Baaijens, S. Savocchia, E. S. Scott, M. R. Sosnowski
Summary: This study showed that fungicides can effectively control trunk disease pathogens when applied within 6 days after pruning, providing up to 14 days of wound protection. This offers improved flexibility in managing grapevine trunk disease.
AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH
(2022)
Article
Plant Sciences
Monica N. N. Hernandez, Achala N. N. Kc
Summary: This study surveyed grapevine trunk diseases in Oregon vineyards and identified several fungal pathogens. The most prevalent were the Botryosphaeriaceae and Phaeoacremonium species, with Botryosphaeria dieback complex being more abundant in Willamette Valley vineyards. Regular disease monitoring and management practices are necessary to control the spread of these pathogens.
Article
Plant Sciences
Giovanni Bortolami, Elena Farolfi, Eric Badel, Regis Burlett, Herve Cochard, Nathalie Ferrer, Andrew King, Laurent J. Lamarque, Pascal Lecomte, Marie Marchesseau-Marchal, Jerome Pouzoulet, Jose M. Torres-Ruiz, Santiago Trueba, Sylvain Delzon, Gregory A. Gambetta, Chloe E. L. Delmas
Summary: The study found that during esca, a grapevine disease, the stem hydraulic conductivity was affected, with severe symptoms showing a high occurrence of xylem occlusions and subsequent loss of stem hydraulic conductivity, while asymptomatic shoots did not show these effects. Tyloses only occurred when leaf symptoms appeared and resulted in significant loss of stem hydraulic conductivity.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Review
Microbiology
Jihane Kenfaoui, Nabil Radouane, Mohammed Mennani, Abdessalem Tahiri, Lahsen El Ghadraoui, Zineb Belabess, Florence Fontaine, Hajar El Hamss, Said Amiri, Rachid Lahlali, Essaid Ait Barka
Summary: Grapevine trunk diseases (GTD) are highly destructive and challenging in viticulture, resulting in yield losses and decreased grapevine quality. This review provides a comprehensive overview of the symptoms, transmission modes, harmfulness of causal agents, as well as the latest diagnostic tests, defense mechanisms, fungal colonization mechanisms, and management strategies for GTD.
Article
Plant Sciences
Jia W. Tan, Harshraj Shinde, Kiflu Tesfamicael, Yikang Hu, Mario Fruzangohar, Penny Tricker, Ute Baumann, Everard J. Edwards, Carlos Rodriguez M. Lopez
Summary: Through physiological and transcriptome analyses, this study identified genes and pathways associated with grapevine response to drought and/or heat stress. While some genes showed different expression under individual and combined stresses, the majority of genes were unique to the combined stress treatment. The results suggest that the effect of combined stress on physiology and gene expression is more severe than that of individual stresses, but not simply additive.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Jared Hrycan, Jane Theilmann, April Mahovlic, Julie Boule, Jose Ramon Urbez-Torres
Summary: This study investigated the contamination of YVD fungi in ready-to-plant grapevine nursery material sold in Canada. The results showed that the majority of plants were affected by at least one fungus, and there were significant variations in the presence and abundance of fungi among different sections and cultivars.
Article
Plant Sciences
Monica Rivadeneira, Marta Zulema Galvan, Marina Aban, Rosa Elena Semke, Josefina Rivadeneira, Melisa Lanza Volpe, Sebastian Gomez Talquenca
Summary: This study surveyed the occurrence of eight grapevine viruses in commercial vineyards in the Calchaquies Valleys in Argentina. The results showed that 60% of the samples were infected with some of the viruses, with GLRaV-3 and GFLV being the most common.
Review
Microbiology
Ouiza Mesguida, Rana Haidar, Amira Yacoub, Assia Dreux-Zigha, Jean-Yves Berthon, Remy Guyoneaud, Eleonore Attard, Patrice Rey
Summary: Grapevine trunk diseases (GTDs), including esca, Botryosphaeria dieback, and Eutypa dieback, have become major health challenges for viticulture worldwide in recent years. The bans on certain pesticides have led to an increase in the incidence of these diseases, prompting efforts to find alternative approaches such as biocontrol. In this review, we discuss the potential of various microbiological control agents in combating GTDs and their efficiency in different experimental settings.
Article
Plant Sciences
Christian Chervin, Olivier Geffroy
Summary: Ethylene can stimulate plant respiration and generate heat. The experiments showed that by spraying ultra-low concentrations of ethylene precursors onto grapevines prone to poor fruit set, the fruit set can be improved and crop losses can be reduced.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Jinliang Chen, Bertrand Beauvoit, Michel Genard, Sophie Colombie, Annick Moing, Gilles Vercambre, Eric Gomes, Yves Gibon, Zhanwu Dai
Summary: Researchers developed an integrative model combining fruit growth and sugar metabolism models, successfully simulating the growth and carbon metabolism of tomato fruits. By simulating fruits of different genotypes, they found that larger and sweeter tomatoes could be obtained by manipulating biophysical factors and transmembrane transports.
Review
Plant Sciences
Eric Gomes, Pascale Maillot, Eric Duchene
Summary: Adaptation of viticulture to climate change involves exploring new areas, training systems, management practices, and varieties. Molecular tools, such as DNA, RNA, and protein analysis, are crucial for understanding grapevine response to environmental stresses, genetics, and genomics of stress tolerance, as well as controlling the genome for breeding better-adapted genotypes. High throughput DNA sequencing and genomic selection are powerful methods for genetic improvement in grapevine adaptation to climate change.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Junhua Kong, Jing Wu, Le Guan, Ghislaine Hilbert, Serge Delrot, Peige Fan, Zhenchang Liang, Benhong Wu, Jose Tomas Matus, Eric Gomes, Zhanwu Dai
Summary: The study investigated the accumulation of anthocyanins in white-fleshed grape cv. 'Gamay' and its teinturier variants, revealing distinct patterns of anthocyanin accumulation and uncoupled accumulation of sugars and anthocyanins in 'Gamay Freaux'. Despite no evident differences in pulp sugar content, the concentration of glucose and fructose in the skin of 'Gamay Freaux' was significantly lower, suggesting a unique metabolic profile in this variant. The findings provide insights into the metabolic consequences and the linkage between sugar and anthocyanin accumulation in grape somatic variants.
Article
Multidisciplinary Sciences
Thomas Friedrich, Vicky Oberkofler, Ines Trindade, Simone Altmann, Krzysztof Brzezinka, Joern Laemke, Michal Gorka, Christian Kappel, Ewelina Sokolowska, Aleksandra Skirycz, Alexander Graf, Isabel Baeurle
Summary: Moderate heat stress primes plants to acquire tolerance to subsequent, more severe heat stress. Here the authors show that the HSFA3 transcription factor forms a heteromeric complex with HSFA2 to sustain activated transcription of genes required for acquired thermotolerance by promoting H3K4 hyper-methylation.
NATURE COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Cuong Nguyen Huu, Sylvia Plaschil, Axel Himmelbach, Christian Kappel, Michael Lenhard
Summary: Most flowering plants have both male and female reproductive organs, with a widespread adaptation to limit self-fertilization known as self-incompatibility (SI). In some flowering plants, different mating types are associated with different floral morphologies. In the heterostylous plant Primula, a specific gene controls style length and determines the mating types. Furthermore, this gene also determines the female incompatibility type. The findings suggest that brassinosteroid (BR) levels in the stigma and style play a role in controlling pollen performance and prevent self-fertilization.
Article
Multidisciplinary Sciences
Giovanni Bortolami, Gregory A. Gambetta, Cedric Cassan, Silvina Dayer, Elena Farolfi, Nathalie Ferrer, Yves Gibon, Jerome Jolivet, Pascal Lecomte, Chloe E. L. Delmas
Summary: In grapevine, drought completely inhibited the leaf symptom expression of vascular disease (esca). By quantifying whole-plant water relations and carbon balance, the study revealed distinct physiological responses to these two stresses, indicating different gas exchange and nonstructural carbohydrate dynamics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Plant Sciences
Yun Zhang, Ben-Min Chang, Berenice Burdet, Zhanwu Dai, Serge Delrot, Markus Keller
Summary: Research indicates that in ripening grape berries, there is a potential risk of apoplastic sugar loss, which can be effectively retrieved in a two-step process in the pedicels through the action of sugar transporters and symplastic movement for local use or recycling back to the berries.
Article
Food Science & Technology
Cecile Kahn, Susanne Tittmann, Ghislaine Hilbert, Christel Renaud, Eric Games, Manfred Stoll
Summary: Climate change and rising carbon dioxide concentration have an impact on viticulture. The VineyardFACE experimental set-up is used to study the effects of elevated carbon dioxide on adapted grapevines. The study found that a moderate increase in carbon dioxide concentration had little effect on primary metabolites composition in grapes, but resulted in lower anthocyanin concentration in the skin during hot and dry seasons.
Article
Agronomy
Pascal Lecomte, Celine Cholet, Emilie Bruez, Tommaso Martignon, Massimo Giudici, Marco Simonit, Adeline Alonso Ugaglia, Dominique Forget, Jerome Miramon, Matthieu Arroyo, Denis Dubourdieu, Laurence Geny-Denis, Patrice Rey
Summary: This study evaluates the effectiveness of grapevine curettage in facilitating the recovery of vines affected by esca disease. The results show that trunk surgery is essential for the short- and mid-term recovery of esca-affected vines, as it significantly reduces foliar symptoms and enables the plants to remain asymptomatic for several years.
PHYTOPATHOLOGIA MEDITERRANEA
(2022)
Article
Plant Sciences
Anna Ramming, Christian Kappel, Masahiro M. Kanaoka, Tetsuya Higashiyama, Michael Lenhard
Summary: Polyadenylation of mRNAs is critical for mRNA export, stability, and translation efficiency. In Arabidopsis thaliana, PAPS1 plays a key role in the acquisition of competence during pollen-tube growth and guidance. Our study shows that PAPS1 activity is required for full acquisition of competence and efficient fertilization. This research highlights the importance of functional specialization between PAPS isoforms in different developmental stages.
Article
Plant Sciences
Yongjian Wang, Boxing Shang, Michel Genard, Ghislaine Hilbert-Masson, Serge Delrot, Eric Gomes, Stefano Poni, Markus Keller, Christel Renaud, Junhua Kong, Jinliang Chen, Zhenchang Liang, Zhanwu Dai
Summary: This study constructed a mechanistic model to simulate the dynamic process of anthocyanin composition in grapes, and successfully calibrated and validated the model using multiple datasets. The model accurately predicted the accumulation of individual anthocyanins under different environmental conditions. The study also showed that manipulating a minimum of three parameters could achieve targeted anthocyanin profiles in a genotype-dependent manner. This model provides a promising methodology for understanding the temporal progression of anthocyanin composition and has implications for bioengineering efforts to precisely adjust the anthocyanin composition of grapes.
Article
Plant Sciences
Moritz Joest, Ouad Soltani, Christian Kappel, Agnieszka Janiak, Beata Chmielewska, Miriam Szurman-Zubrzycka, Sarah M. Mckim, Michael Lenhard
Summary: Canopy architecture in cereals, specifically leaf width, plays a crucial role in determining yield. Despite incomplete understanding, a mutagenesis study in barley identified a specific mutant with broader leaves. This mutation was found to be associated with a missense mutation in the HvHNT1 gene, which affects protein structure and function. Transcriptomic and protein-protein interaction studies further support the causality of this mutation and suggest its potential agronomic effect in barley.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Biochemistry & Molecular Biology
Chen Zhang, Zhanwu Dai, Thilia Ferrier, Luis Orduna, Antonio Santiago, Arnau Peris, Darren C. J. Wong, Christian Kappel, Stefania Savoi, Rodrigo Loyola, Alessandra Amato, Bartosz Kozak, Miaomiao Li, Akun Liang, David Carrasco, Carlos Meyer-Regueiro, Carmen Espinoza, Ghislaine Hilbert, Rosa Figueroa-Balderas, Dario Cantu, Rosa Arroyo-Garcia, Patricio Arce-Johnson, Patricia Claudel, Daniel Errandonea, Manuel Rodriguez-Concepcion, Eric Duchene, Shao-Shan Carol Huang, Simone Diego Castellarin, Giovanni Battista Tornielli, Francois Barrieu, Jose Tomas Matus
Summary: Variegation is a rare type of mosaicism that has not been fully studied in plants, especially fruits. This study examined variegated grape berries and found that the accumulation of products from different metabolic pathways showed opposite tendencies in red and white sections. The MYB24 regulatory network was found to play a role in modulating responses to UV and high-intensity light stress, promoting terpene and flavonol synthesis in the absence of anthocyanins.
Article
Biotechnology & Applied Microbiology
Christian Kappel, Thomas Friedrich, Vicky Oberkofler, Li Jiang, Tim Crawford, Michael Lenhard, Isabel Baeurle
Summary: Transcriptional memory induced by heat stress is an important response mechanism for plants. The global target genes of two memory heat shock transcription factors, HSFA2 and HSFA3, were identified using ChIP-seq, revealing specific sequence and chromatin features of memory genes. These findings have implications for predicting and manipulating genes with transcriptional memory behavior.
Article
Biochemistry & Molecular Biology
Loris Pratx, Philipp Wendering, Christian Kappel, Zoran Nikoloski, Isabel Baeurle
Summary: Heat stress memory in plants is characterized by transcriptional memory and hyper-methylation of histone H3 lysine 4. Reduced histone turnover at these genes is found to contribute to maintaining epigenetic memory. Histone turnover at individual loci was determined by measuring incorporation and retention of an inducible tagged H3.3. Heat stress memory genes exhibit lower histone turnover compared to early heat stress genes. Histone retention/recycling promotes environmentally mediated epigenetic memory.