Publications by authors named "Jonathan Gaudin"
Article Synopsis
- A study conducted in 2021 and 2022 collected over 7,300 samples from 36 pepper fields in southwestern France to investigate the cucumber mosaic virus (CMV) affecting Espelette pepper.
- Five new natural host species of CMV were identified, including Arum italicum and Trifolium incarnatum.
- A specific CMV variant was found to be very common in pepper crops (78%) and some wild plants (8%), and this variant has been previously reported in France, dating back to at least 2009.
Article Synopsis
- * One lettuce plant (JG1) had a mixed infection, while the other (JG2) tested positive for LeMoV alone; complete genomic sequences were obtained for all viral isolates.
- * Analysis of the genomes indicated significant differences between the sequivirus isolates in JG1 and existing LeMoV strains, leading to the suggestion of a new species named lettuce star mosaic virus.
Halyomorpha halys (Stål, 1855), the Brown Marmorated StinkBug (BMSB) is a highly successful invasive species native to eastern Asia that managed to spread into North America and Europe in recent decades. We set up a citizen science survey to monitor BMSB expansion in France in 2012 and analyzed the data it yielded between 2012 and 2019 to examine the local expansion of the insect. These data were gathered with occurrences form various sources (GBIF, literature) to calibrate a species niche model and assess potential current BMSB range.
View Article and Find Full Text PDFBackground: (Stål, 1855), the brown marmorated stinkbug (BMSB) is a highly successful invasive species, native to eastern Asia. It has managed to spread into North America and Europe in recent decades, causing severe damage to various crops. BMSB has been detected in Europe in 2004 and has since expanded in more than 20 countries from Sweden to Greece and Spain to Turkey, the South European Territory of Russia (Krasnodar region) and Abkhazia.
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- Lettuce necrotic leaf curl virus (LNLCV) is a newly identified virus affecting lettuce, which was primarily reported in the Netherlands but later confirmed in France in 2019 through symptomatic plants.
- This virus is unique because it is transmitted by aphids rather than whiteflies, differentiating it from other similar viruses found in tomato plants.
- The study involved isolating the virus's RNA from the infected lettuce and successfully demonstrated its presence in indicator plants, confirming its spread and characteristics through genetic sequencing methods.
Lavender decline compromises French lavender production, and preliminary data have suggested the involvement of " Phytoplasma solani" in the etiology of the disease. In order to evaluate the epidemiological role of " Phytoplasma solani," a 3-year survey was conducted in southeastern France. " Phytoplasma solani" was detected in 19 to 56% of the declining plants, depending on seasons and cultivars, and its prevalence was correlated with symptom severity.
View Article and Find Full Text PDFDouble-stranded RNAs purified from cultivated (Lactuca sativa) or wild (L. serriola) lettuce from southwest France were analyzed by high-throughput sequencing. For both samples, BLAST annotation revealed contigs with homology to Betaflexiviridae family members.
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