INRAE - Plant Health and Environment Division

Development of Tools to Detect and Identify Strains Belonging to the Pseudomonas syringae Species Complex Responsible for Vein Clearing of Zucchini

Development of Tools to Detect and Identify Strains Belonging to the Pseudomonas syringae Species Complex Responsible for Vein Clearing of Zucchini; Caroline Lacault, Martial Briand, Marie-Agnès Jacques, and Armelle Darrasse; DOI:10.1094/PHYTOFR-05-23-0062-R



https://apsjournals.apsnet.org/doi/10.1094/PHYTOFR-05-23-0062-R
https://www.tandfonline.com/doi/full/10.1080/1040841X.2024.2392179

Development of Tools to Detect and Identify Strains Belonging to the Pseudomonas syringae Species Complex Responsible for Vein Clearing of Zucchini | PhytoFrontiers™ Vein clearing of zucchini (VCZ) is a disease caused by seedborne bacteria that affects young plants of Cucurbita pepo subsp. pepo. VCZ agents are distributed into four phylogenetic clusters within clades 2a and 2ba of phylogroup 2 of the Pseudomonas syringae species complex. All these strains are pa...

New insights into mycotoxin risk management through fungal population genetics and genomics

Nguyen, T. B. H., Foulongne-Oriol, M., Jany, J. L., le Floch, G., & Picot, A. (2024). New insights into mycotoxin risk management through fungal population genetics and genomics. Critical Reviews in Microbiology, 1–22. https://doi.org/10.1080/1040841X.2024.2392179



https://www.tandfonline.com/doi/full/10.1080/1040841X.2024.2392179

New insights into mycotoxin risk management through fungal population genetics and genomics Mycotoxin contamination of food and feed is a major global concern. Chronic or acute dietary exposure to contaminated food and feed can negatively affect both human and animal health. Contamination...

Automated high-content image-based characterization of microorganism behavioral diversity and distribution

Automated high-content image-based characterization of microorganism behavioral diversity and distribution
Lupatelli, Carlotta Aurora et al.; Computational and Structural Biotechnology Journal, Volume 21, 5640 - 5649; DOI: 10.1016/j.csbj.2023.10.055

Redirecting

Complete genome of the Medicago anthracnose fungus, Colletotrichum destructivum, reveals a mini-chromosome-like region within a core chromosome

Lapalu, Nicolas and Simon, Adeline and Lu, Antoine and Plaumann, Peter-Louis and Amselem, Joëlle and Pigné, Sandrine and Auger, Annie and Koch, Christian and Dallery, Jean-Félix and Connell, Richard J., Complete genome of the Medicago anthracnose fungus, Colletotrichum destructivum, reveals a mini-chromosome-like region within a core chromosome, Microbial Genomics, 2024,
10, 8, https://doi.org/10.1099/mgen.0.001283



https://www.microbiologyresearch.org/content/journal/mgen/10.1099/mgen.0.001283

Complete genome of the Medicago anthracnose fungus, Colletotrichum destructivum, reveals a mini-chromosome-like region within a core chromosome Colletotrichum destructivum (Cd) is a phytopathogenic fungus causing significant economic losses on forage legume crops (Medicago and Trifolium species) worldwide. To gain insights into the genetic basis of fungal virulence and host specificity, we sequenced the genome of an isolate from Medicago sa...

Acclimation to high daily thermal amplitude converts a defense response regulator into susceptibility factor

Acclimation to high daily thermal amplitude converts a defense response regulator into susceptibility factor; Marie Didelon, Justine Sucher, Pedro Carvalho-Silva, Matilda Zaffuto, Adelin Barbacci, Sylvain Raffaele; bioRxiv 2024.08.22.609129; doi: https://doi.org/10.1101/2024.08.22.609129



https://www.biorxiv.org/content/10.1101/2024.08.22.609129v1

Acclimation to high daily thermal amplitude converts a defense response regulator into susceptibility factor Acclimation enables plants to adapt to immediate environmental fluctuations, supporting biodiversity and ecosystem services. However, global changes are altering conditions for plant disease outbreaks, increasing the risk of infections by pathogenic fungi and oomycetes, and often undermining plant i...

Metabolic consequences of various fruit-based diets in a generalist insect species

Laure OlazcuagaRaymonde BaltenweckNicolas LeménagerAlessandra Maia-GrondardPatricia ClaudelPhilippe HugueneyJulien Foucaud (2023) Metabolic consequences of various fruit-based diets in a generalist insect species eLife 12:e84370. https://doi.org/10.7554/eLife.84370



https://elifesciences.org/articles/84370

Metabolic consequences of various fruit-based diets in a generalist insect species Metabolomic analyses indicate that diet generalism may stem from a neutral metabolic response to different chemistries, rather than from an accumulation of specific adaptations.

Identification and quantification of transposable element transcripts using Long-Read RNA-seq in Drosophila germline tissues

Identification and quantification of transposable element transcripts using Long-Read RNA-seq in Drosophila germline tissues; Rita Rebollo, Pierre Gerenton, Eric Cumunel, Arnaud Mary, Francois Sabot, Nelly Burlet, Benjamin Gillet, Sandrine Hughes, Daniel Siqueira Oliveira, Clément Goubert, Marie Fablet, Cristina Vieira, Vincent Lacroix; bioRxiv 2023.05.27.542554; doi: https://doi.org/10.1101/2023.05.27.542554



https://www.biorxiv.org/content/10.1101/2023.05.27.542554v5

Identification and quantification of transposable element transcripts using Long-Read RNA-seq in Drosophila germline tissues Transposable elements (TEs) are repeated DNA sequences potentially able to move throughout the genome. In addition to their inherent mutagenic effects, TEs can disrupt nearby genes by donating their intrinsic regulatory sequences, for instance, promoting the ectopic expression of a cellular gene. TE...

Genetic diversity: the key to protecting rice crops

Faced with the growing threat of infectious diseases, the genetic diversity of plants is emerging as the rampart for protecting crops and ensuring global food security. A study recently published in Current Biology by researchers from INRAE, CIRAD and their British and Chinese colleagues reveals that traditional varieties of rice, cultivated in the Yuanyang terraces in southwest China, have an extensive immune receptor repertoire. The genetic diversity of this cropping system is thought to be the key to its remarkable resilience against disease.

Genetic diversity: the key to protecting rice crops Faced with the growing threat of infectious diseases, the genetic diversity of plants is emerging as the rampart for protecting crops and ensuring global food security. A study recently published in Current Biology by researchers from INRAE, CIRAD and their British and Chinese colleagues reveals tha...

Building integrated plant health surveillance: a proactive research agenda for anticipating and mitigating disease and pest emergence

Soubeyrand, S., Estoup, A., Cruaud, A. et al. Building integrated plant health surveillance: a proactive research agenda for anticipating and mitigating disease and pest emergence. CABI Agric Biosci 5, 72 (2024). https://doi.org/10.1186/s43170-024-00273-8



https://cabiagbio.biomedcentral.com/articles/10.1186/s43170-024-00273-8

Building integrated plant health surveillance: a proactive research agenda for anticipating and mitigating disease and pest emergence - CABI Agriculture and Bioscience In an era marked by rapid global changes, the reinforcement and modernization of plant health surveillance systems have become imperative. Sixty-five scientists present here a research agenda for an enhanced and modernized plant health surveillance to anticipate and mitigate disease and pest emergen...

Combining single-gene-resistant and pyramided cultivars of perennial crops in agricultural landscapes compromises pyramiding benefits in most production situations

Combining single-gene-resistant and pyramided cultivars of perennial crops in agricultural landscapes compromises pyramiding benefits in most production situations
Dr. Marta Zaffaroni, Dr. Julien Papaïx, Dr. Abebayehu G. Geffersa, Mr. Jean-François Rey, Dr. Loup Rimbaud, and Dr. Frederic Fabre
Phytopathology

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Combining single-gene-resistant and pyramided cultivars of perennial crops in agricultural landscapes compromises pyramiding benefits in most production situations | Phytopathology® While resistant cultivars are valuable in safeguarding crops against diseases, they can be rapidly overcome by pathogens. Numerous strategies have been proposed to delay pathogen adaptation (evolutionary control), while still ensuring effective protection (epidemiological control). For perennial cro...

Comparative transcriptomics reveals a highly polymorphic Xanthomonas HrpG virulence regulon

Monnens, T.Q., Roux, B., Cunnac, S. et al. Comparative transcriptomics reveals a highly polymorphic Xanthomonas HrpG virulence regulon. BMC Genomics 25, 777 (2024). https://doi.org/10.1186/s12864-024-10684-6



https://link.springer.com/article/10.1186/s12864-024-10684-6

Comparative transcriptomics reveals a highly polymorphic Xanthomonas HrpG virulence regulon - BMC Genomics Background Bacteria of the genus Xanthomonas cause economically significant diseases in various crops. Their virulence is dependent on the translocation of type III effectors (T3Es) into plant cells by the type III secretion system (T3SS), a process regulated by the master response regulator HrpG. A...

Impact of pea-wheat intercropping on grain ionome in relation with changes in Pseudomonas spp. and Enterobacterales abundances

Semblat, A., Turanoglu, C., Faivre-Primot, C. et al. Impact of pea-wheat intercropping on grain ionome in relation with changes in Pseudomonas spp. and Enterobacterales abundances. Plant Soil (2024). https://doi.org/10.1007/s11104-024-06861-x



https://link.springer.com/article/10.1007/s11104-024-06861-x

Impact of pea-wheat intercropping on grain ionome in relation with changes in Pseudomonas spp. and Enterobacterales abundances - Plant and Soil Background and aims Cereal-legume intercropping (IC) is proposed to address the challenges of increasing yields and improving crop nutrient quality, crucial for food security and human health. This study aimed to characterize the impact of pea-wheat IC on grain ionome composition, and asses its pote...

Within-plant genetic drift to control virus adaptation to host-resistance genes

Tamisier L, Fabre F, Szadkowski M, Chateau L, Nemouchi G, et al. (2024) Within-plant genetic drift to control virus adaptation to host-resistance genes. PLOS Pathogens 20(8): e1012424. https://doi.org/10.1371/journal.ppat.1012424



https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1012424

Within-plant genetic drift to control virus adaptation to host-resistance genes Author summary Given their high evolutionary potential, viruses are notoriously difficult to control by drug treatments or by breeding resistant hosts. In plants, resistance genes targeting viruses become often rapidly inefficient due to virus mutational escape. Manipulating the evolutionary forces....

Stomatal pe*******on: the cornerstone of plant resistance to the fungal pathogen Zymoseptoria tritici

Battache, M., Suarez-Fernandez, M., Klooster, M.V. et al. Stomatal pe*******on: the cornerstone of plant resistance to the fungal pathogen Zymoseptoria tritici. BMC Plant Biol 24, 736 (2024). https://doi.org/10.1186/s12870-024-05426-5



https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-024-05426-5

Stomatal pe*******on: the cornerstone of plant resistance to the fungal pathogen Zymoseptoria tritici - BMC Plant Biology Background Septoria tritici blotch (STB), caused by the foliar fungus Zymoseptoria tritici, is one of the most damaging disease of wheat in Europe. Genetic resistance against this fungus relies on different types of resistance from non-host resistance (NHR) and host species specific resistance (HSSR...

The overlooked manipulation of nucleolar functions by plant pathogen effectors

Ranty-Roby S, Pontvianne F, Quentin M and Favery B (2024) The overlooked manipulation of nucleolar functions by plant pathogen effectors. Front. Plant Sci. 15:1445097. doi: 10.3389/fpls.2024.1445097

Frontiers | The overlooked manipulation of nucleolar functions by plant pathogen effectors Pathogens need to manipulate plant functions to facilitate the invasion of their hosts. They do this by secreting a cocktail of molecules called effectors. S...

Characterization of Six Ampeloviruses Infecting Pineapple in Reunion Island Using a Combination of High-Throughput Sequencing Approaches

Massé, D.; Candresse, T.; Filloux, D.; Massart, S.; Cassam, N.; Hostachy, B.; Marais, A.; Fernandez, E.; Roumagnac, P.; Verdin, E.; et al. Characterization of Six Ampeloviruses Infecting Pineapple in Reunion Island Using a Combination of High-Throughput Sequencing Approaches. Viruses 2024, 16, 1146. https://doi.org/10.3390/v16071146



https://www.mdpi.com/1999-4915/16/7/1146

Characterization of Six Ampeloviruses Infecting Pineapple in Reunion Island Using a Combination of High-Throughput Sequencing Approaches The cultivation of pineapple (Ananas comosus) is threatened worldwide by mealybug wilt disease of pineapple (MWP), whose etiology is not yet fully elucidated. In this study, we characterized pineapple mealybug wilt-associated ampeloviruses (PMWaVs, family Closteroviridae) from a diseased pineapple p...

Exploring the role of cultivar, year and plot age in the incidence of esca and Eutypa dieback: Insights from 20 years of regional surveys in France

Etienne, L., Fabre, F., Martinetti, D., Frank, E., Michel, L., Bonnardot, V. et al. (2024) Exploring the role of cultivar, year and plot age in the incidence of esca and Eutypa dieback: Insights from 20 years of regional surveys in France. Plant Pathology, 00, 1–15. Available from: https://doi.org/10.1111/ppa.13975



https://bsppjournals.onlinelibrary.wiley.com/doi/abs/10.1111/ppa.13975

HTTP Status 429 – Too Many Requests

Hierarchizing multi-scale environmental effects on agricultural pest population dynamics: a case study on the annual onset of Bactrocera dorsalis population growth in Senegalese orchards

Caumette, Cécile; Diatta, Paterne; Piry, Sylvain; Chapuis, Marie-Pierre; Faye, Emile; Sigrist, Fabio; Martin, Olivier; Papaïx, Julien; Brévault, Thierry; Berthier, Karine. Hierarchizing multi-scale environmental effects on agricultural pest population dynamics: a case study on the annual onset of Bactrocera dorsalis population growth in Senegalese orchards. Peer Community Journal, Volume 4 (2024), article no. e65. doi : 10.24072/pcjournal.438. https://peercommunityjournal.org/articles/10.24072/pcjournal.438/



https://peercommunityjournal.org/articles/10.24072/pcjournal.438/

Hierarchizing multi-scale environmental effects on agricultural pest population dynamics: a case study on the annual onset of Bactrocera dorsalis population growth in Senegalese orchards Implementing integrated pest management programs to limit agricultural pest damage requires an understanding of the interactions between the environmental variability and population demographic processes. However, identifying key environmental drivers of spatio-temporal pest population dynamics rema...

A hitchhiker's guide to Europe: mapping human-mediated spread of the invasive Japanese beetle

Borner L, Martinetti D, Poggi S (2024) A hitchhiker's guide to Europe: mapping human-mediated spread of the invasive Japanese beetle. NeoBiota 94: 1-14. https://doi.org/10.3897/neobiota.94.126283



https://neobiota.pensoft.net/article/126283/

A hitchhiker's guide to Europe: mapping human-mediated spread of the invasive Japanese beetle Early detection of hitchhiking pests requires the identification of strategic introduction points via transport. We propose a framework for achieving this in Europe using the Japanese beetle (Popillia japonica) as a case study. Human-mediated spread has been responsible for its introduction into sev...

Food security: discovery of a gene for immunity against a disease that ravages rice and wheat crops

The fungus Magnaporthe oryzae ravages rice and wheat crops and poses a formidable threat to human food on a global scale. Researchers from INRAE, CIRAD and the Université de Montpellier, together with the Hunan Hybrid Rice Research Centre (HHRRC) and the International Rice Research Institute (IRRI) have discovered a gene in rice for resistance to this pathogen, challenging the findings of a study that remained the reference for 25 years. Published in Nature Plants on 4 June, these results pave the way to new solutions to improve disease resistance in crops that are compatible with the development of sustainable agriculture.

Food security: discovery of a gene for immunity against a disease that ravages rice and wheat crops The fungus Magnaporthe oryzae ravages rice and wheat crops and poses a formidable threat to human food on a global scale. Researchers from INRAE, CIRAD and the Université de Montpellier, together with the Hunan Hybrid Rice Research Centre (HHRRC) and the International Rice Research Institute (IRRI)...

Origin, divergence and migration routes of psyllids of the Cacopsylla pruni complex (Hemiptera: Psylloidea) inferred by Approximate Bayesian Computation methods

Origin, divergence and migration routes of psyllids of the Cacopsylla pruni complex (Hemiptera: Psylloidea) inferred by Approximate Bayesian Computation methods; Margaux Darnis, Virginie Ravigné, Nicolas Sauvion; bioRxiv 2024.07.08.602570; doi: https://doi.org/10.1101/2024.07.08.602570



https://www.biorxiv.org/content/10.1101/2024.07.08.602570v1

Origin, divergence and migration routes of psyllids of the Cacopsylla pruni complex (Hemiptera: Psylloidea) inferred by Approximate Bayesian Computation methods Population genetics is essential to decipher the evolutionary history of pests and insect vectors from both a theoretical point of view and to predict and mitigate the future of epidemics. We attempt to shed light on the evolutionary history and phylogeography of two cryptic psyllid species (namely....

The root-knot nematode effector MiEFF12 targets the host ER quality control system to suppress immune responses and allow parasitism

Soulé, S., Huang, K., Mulet, K., Mejias, J., Bazin, J., Truong, N.M. et al. (2024) The root-knot nematode effector MiEFF12 targets the host ER quality control system to suppress immune responses and allow parasitism. Molecular Plant Pathology, 25, e13491. Available from: https://doi.org/10.1111/mpp.13491



fector endoplasmic reticulum (ER) ER quality control Meloidogyne incognita Nicotiana benthamiana Solanum lycopersicum

https://bsppjournals.onlinelibrary.wiley.com/doi/full/10.1111/mpp.13491

The root‐knot nematode effector MiEFF12 targets the host ER quality control system to suppress immune responses and allow parasitism Molecular Plant Pathology is a molecular plant disease journal publishing research that advances the understanding of the molecular mechanisms of plant disease.

Some like it hot: efficiency of the Type 3 Secretion System and activation of plant defenses have multiple thermosensitive behaviors in the Pseudomonas syringae complex

E. Caullireau, D. Danzi, V.M. Tempo, M. Pandolfo, C.E. Morris, E. Vandelle; Some like it hot: efficiency of the Type 3 Secretion System and activation of plant defenses have multiple thermosensitive behaviors in the Pseudomonas syringae complex; bioRxiv 2024.05.31.596889; doi: https://doi.org/10.1101/2024.05.31.596889

Some like it hot: efficiency of the Type 3 Secretion System and activation of plant defenses have multiple thermosensitive behaviors in the Pseudomonas syringae complex The Pseudomonas syringae species complex is a very important plant pathogenic bacterium, causing damage and economic losses on many crops. Research efforts for the understanding of the determinants of the host-range of a given strain are considerable. Recently, we showed that the inability of a P. s...

Revisiting the taxonomy and molecular systematics of Sesamia stemborers (Lepidoptera: Noctuidae: Apameini: Sesamiina): updated classification and comparative evaluation of species delimitation methods

Hévin NMC, Kergoat GJ, Zilli A, Capdevielle-Dulac C, Musyoka BK, Sezonlin M, Conlong D, Van Den Berg J, Ndemah R, Le Gall P, Cugala D, Nyamukondiwa C, Pallangyo B, Njaku M, Goftishu M, Assefa Y, Kandonda OM, Bani G, Molo R, Chipabika G, Ong’amo G, Clamens A-L, Barbut J, Le Ru B (2024) Revisiting the taxonomy and molecular systematics of Sesamia stemborers (Lepidoptera: Noctuidae: Apameini: Sesamiina): updated classification and comparative evaluation of species delimitation methods. Arthropod Systematics & Phylogeny 82: 447-501. https://doi.org/10.3897/asp.82.e113140



https://arthropod-systematics.arphahub.com/article/113140/

Revisiting the taxonomy and molecular systematics of Sesamia stemborers (Lepidoptera: Noctuidae: Apameini: Sesamiina): updated classification and comparative evaluation of species delimitation methods In this study, we reassess the phylogenetic relationships of the genus Sesamia Guenée, 1852 and examine in more detail the members of the nonagrioides species group, for which three distinct species complexes are identified. The calamistis subgroup comprises eight species, of which four new species...

Habitat opening fostered diversity: impact of dispersal and habitat-shifts in the evolutionary history of a speciose afrotropical insect group

Hévin, N.M.-.-C., Goldstein, P.Z., Aduse-Poku, K., Barbut, J., Mitchell, A., Zilli, A., Clamens, A.-L., Capdevielle-Dulac, C., Wahlberg, N., Le Ru, B.P. and Kergoat, G.J. (2024), Habitat opening fostered diversity: impact of dispersal and habitat-shifts in the evolutionary history of a speciose afrotropical insect group. Ecography e07258. https://doi.org/10.1111/ecog.07258



https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/ecog.07258

Habitat opening fostered diversity: impact of dispersal and habitat‐shifts in the evolutionary history of a speciose afrotropical insect group The opening of habitats associated with the emergence of C4 grasslands during the Neogene had a massive influence on the evolution of plant and animal communities. Strikingly, the impacts of grasslan...

Functional carbohydrate-active enzymes acquired by horizontal gene transfer from plants in the whitefly Bemisia tabaci

Functional carbohydrate-active enzymes acquired by horizontal gene transfer from plants in the whitefly Bemisia tabaci
D Colinet, M Haon, E Drula, M Boyer, S Grisel, C Belliardo, GD Koutsovoulos, JG Berrin, EGJ Danchin
bioRxiv 2024.06.03.597214; doi: https://doi.org/10.1101/2024.06.03.597214



https://www.biorxiv.org/content/10.1101/2024.06.03.597214v1

Functional carbohydrate-active enzymes acquired by horizontal gene transfer from plants in the whitefly Bemisia tabaci Carbohydrate-active enzymes (CAZymes) involved in the degradation of plant cell walls and/or the assimilation of plant carbohydrates for energy uptake are widely distributed in microorganisms. In contrast, they are less frequent in animals, although there are exceptions, including examples of CAZyme...

Novel phages of Pseudomonas syringae unveil numerous potential auxiliary metabolic genes

Feltin et al., Journal of General Virology 2024;105:001990, DOI 10.1099/jgv.0.001990

Novel phages of Pseudomonas syringae unveil numerous potential auxiliary metabolic genes Relatively few phages that infect plant pathogens have been isolated and investigated. The Pseudomonas syringae species complex is present in various environments, including plants. It can cause major crop diseases, such as bacterial canker on apricot trees. This study presents a collection of 25 un...

Using honey bee flight activity data and a deep learning model as a toxicovigilance tool

Ulises Olivares-Pinto, Cédric Alaux, Yves Le Conte, Didier Crauser, Alberto Prado, Using honey bee flight activity data and a deep learning model as a toxicovigilance tool, Ecological Informatics, 2024, 102653, ISSN 1574-9541, DOI: 10.1016/j.ecoinf.2024.102653.

www.sciencedirect.com

A new point mutation in the HC-Pro of potato virus Y is involved in to***co vein necrosis

Parrella G, Moury B (2024) A new point mutation in the HC-Pro of potato virus Y is involved in to***co vein necrosis. PLoS ONE 19(5): e0302692. https://doi.org/10.1371/journal.pone.0302692

***co

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302692

A new point mutation in the HC-Pro of potato virus Y is involved in to***co vein necrosis To***co vein necrosis (TVN) is a complex phenomenon regulated by different genetic determinants mapped in the HC-Pro protein (amino acids N330, K391 and E410) and in two regions of potato virus Y (PVY) genome, corresponding to the cytoplasmic inclusion (CI) protein and the nuclear inclusion protein....

Targeting of Antifungal Metabolites from Grapevine Byproducts by UPLC–HRMS/MS Approaches Using Bioactivity-Based Molecular Networking

Targeting of Antifungal Metabolites from Grapevine Byproducts by UPLC–HRMS/MS Approaches Using Bioactivity-Based Molecular Networking, Charles Tardif, Caroline Rouger, Julie Miranda, Omar S. Ahmed, Florence Richard-Forget, Vessela Atanasova, and Pierre Waffo-Teguo, Journal of Agricultural and Food Chemistry Article ASAP, DOI: 10.1021/acs.jafc.3c09531

Targeting of Antifungal Metabolites from Grapevine Byproducts by UPLC–HRMS/MS Approaches Using Bioactivity-Based Molecular Networking This study focuses on countering Fusarium graminearum, a harmful fungal pathogen impacting cereal crops and human health through mycotoxin production. These mycotoxins, categorized as type B trichothecenes, pose significant health risks. Research explores natural alternatives to synthetic fungicides...