Publications by authors named "B Moury"
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.
Boosting plant immunity is an effective alternative to pesticides. However, environmental variations, accentuated by climate change, can compromise immunity. The robustness of a trait corresponds to the absence (or low level) of variation in that trait in the face of an environmental change.
View Article and Find Full Text PDFManipulating evolutionary forces imposed by hosts on pathogens like genetic drift and selection could avoid the emergence of virulent pathogens. For instance, increasing genetic drift could decrease the risk of pathogen adaptation through the random fixation of deleterious mutations or the elimination of favorable ones in the pathogen population. However, no experimental proof of this approach is available for a plant-pathogen system.
View Article and Find Full Text PDFTobacco 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 a-protease (NIa-Pro), respectively. A new determinant of TVN was discovered in the MK isolate of PVY which, although carried the HC-Pro determinants associated to TVN, did not induce TVN. The HC-Pro open reading frame (ORF) of the necrotic infectious clone PVY N605 was replaced with that of the non-necrotic MK isolate, which differed only by one amino acid at position 392 (T392 instead of I392).
View Article and Find Full Text PDFArticle Synopsis
- The time-dependent rate phenomenon (TDRP) affects how evolutionary rates of viruses are measured over different timeframes, showing lower estimates for longer analyses, particularly in animal and human viruses.
- A mechanistic model called the Prisoner of War (PoW) has been used to study TDRP effects on plant viruses, specifically sobemoviruses, revealing their evolutionary history spans over four million years and indicating ancient host adaptation events.
- The study demonstrated that incorporating metagenomic data provides a more detailed phylogenetic tree, suggesting significant diversification events aligned with the Neolithic period, challenging traditional timelines of plant virus evolution.