78 results match your criteria: "Saint-Jean-sur-Richelieu Research and Development Centre.[Affiliation]"

Complete genome sequence of LBUM494, a plant-beneficial strain isolated from the rhizosphere of a strawberry plant.

Microbiol Resour Announc

October 2024

Department of Plant Science, McGill University, Macdonald Campus, Ste. Anne de Bellevue, Quebec, Canada.

Here, we present the complete genome sequence of LBUM494, a plant-beneficial bacterial strain isolated from the rhizosphere of a strawberry plant grown in an agricultural field located in Bouctouche, New Brunswick, Canada. The genome size is 3,699,913 bp with a GC content of 41.7%.

View Article and Find Full Text PDF

Potato common scab is an important bacterial disease afflicting potatoes around the world. Better knowledge of the local spp. populations causing this disease is key to developing durable control strategies.

View Article and Find Full Text PDF

Impact of climate change on the reproductive diapause and voltinism of the carrot weevil, Listronotus oregonensis.

J Insect Physiol

June 2024

Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, Quebec J3B 3E6, Canada.

The impacts of climate change on the development of insects are of great concern due to potential alterations in population dynamics and pest pressure. The carrot weevil, Listronotus oregonensis, is a major agricultural pest, and its development is influenced by temperature and photoperiod. In this study, our aim was to investigate the impact of temperature increases on the voltinism and reproductive diapause of the carrot weevil under field conditions and bioclimatic models.

View Article and Find Full Text PDF
Article Synopsis
  • Grapevine anthracnose is a serious disease affecting grapes, especially in warm, humid climates, and this study examines how temperature and leaf age influence its incubation, lesion development, and sporulation.
  • The average incubation periods decreased significantly with rising temperatures, ranging from 27.50 days at 5°C to just 2.26 days at 30°C, while leaf age also played a critical role in the incubation time.
  • The research findings offer valuable quantitative data on the disease's development stages, represented through models of relative lesion development and sporulation over time, highlighting the impact of environmental factors on grapevine health.
View Article and Find Full Text PDF

Onion thrips () can pose a significant threat to onion crops, causing leaf damage, reduced bulb size and quality, and yield loss during severe infestations. Conventional insecticide use has been the primary method for managing this pest species, but the efficacy of this approach is inconsistent. Furthermore, emerging pest resistance is a growing concern in some regions.

View Article and Find Full Text PDF

Understanding the evolution of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) and its relationship to other coronaviruses in the wild is crucial for preventing future virus outbreaks. While the origin of the SARS-CoV-2 pandemic remains uncertain, mounting evidence suggests the direct involvement of the bat and pangolin coronaviruses in the evolution of the SARS-CoV-2 genome. To unravel the early days of a probable zoonotic spillover event, we analyzed genomic data from various coronavirus strains from both human and wild hosts.

View Article and Find Full Text PDF

Lettuce is an economically major leafy vegetable that is affected by numerous diseases. One of the most devastating diseases of lettuce is white mold caused by . Control methods for this fungus are limited due to the development of genetic resistance to commonly used fungicides, the large number of hosts and the long-term survival of sclerotia in soil.

View Article and Find Full Text PDF
Article Synopsis
  • Ambrosia artemisiifolia and Ambrosia trifida are significant pest species and major sources of allergens worldwide; this study presents detailed genome assemblies for both species using a hybrid approach.
  • The genome assemblies reveal high completeness and substantial repetitive elements, with a notable number of genes related to herbicide resistance and allergenicity, indicating resilience against glyphosate.
  • The structural evolution of A. trifida shows more genome rearrangements, while A. artemisiifolia exhibits stable genetic structures, providing insights into the evolutionary history of these allergenic plants within the Heliantheae Alliance.
View Article and Find Full Text PDF

Editorial for Special Issue "Interactions between Plant Beneficial spp. and Their Host".

Microorganisms

October 2023

Science and Technology Branch, Saint-Jean-sur-Richelieu Research and Development Centre, Agriculture and Agri-Food Canada, Government of Canada, 430 Gouin Boul., Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada.

Plant-beneficial spp [...

View Article and Find Full Text PDF

The soybean cyst nematode (SCN) is a devastating pathogen for economic and food security considerations. Although the SCN genome has recently been sequenced, the presence of any miRNA has not been systematically explored and reported. This paper describes the development of a species-specific SCN miRNA discovery pipeline and its application to the SCN genome.

View Article and Find Full Text PDF

Anthracnose caused by is an economically important disease that affects certain hardy and semihardy grapevine cultivars. The control of this disease requires repeated application of fungicides, which has financial and environmental consequences. In this study, leaf removal in the cluster area was studied with a view to facilitating integrated anthracnose management.

View Article and Find Full Text PDF

The soybean cyst nematode (SCN - ) is one of the most damaging pests to the cultivated soybean worldwide. Using a wide array of stylet-secreted effector proteins, this nematode can restructure its host cells into a complex and highly active feeding structure called the syncytium. Tight regulation of these proteins is thought to be essential to the successful formation of this syncytium.

View Article and Find Full Text PDF

spp. can help plants face climate change.

Front Microbiol

June 2023

Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu Research and Development Centre, Saint-Jean-sur-Richelieu, QC, Canada.

Climate change is increasingly affecting agriculture through droughts, high salinity in soils, heatwaves, and floodings, which put intense pressure on crops. This results in yield losses, leading to food insecurity in the most affected regions. Multiple plant-beneficial bacteria belonging to the genus have been shown to improve plant tolerance to these stresses.

View Article and Find Full Text PDF
Article Synopsis
  • There is an urgent global demand for effective identification of viral pathogens to prevent the spread of diseases, particularly in plant materials.
  • The researchers developed a new diagnostic method called dsRNAcD sequencing, which proved more effective in detecting viruses and viroids in grapevines compared to existing RNA sequencing methods.
  • The study also compared two different data analysis workflows for read classification, finding both effective but with distinct advantages and disadvantages, underscoring the reliability of dsRNAcD for detecting multiple viral infections.
View Article and Find Full Text PDF

The soybean cyst nematode (SCN) [ Ichinohe] is a devastating pathogen of soybean [ (L.) Merr.] that is rapidly becoming a global economic issue.

View Article and Find Full Text PDF

Potato common scab is an important bacterial plant disease caused by numerous species and strains. A better understanding of the genetic diversity and population dynamics of these microorganisms in the field is crucial to develop effective control methods. Our research group previously studied the genetic diversity of scab-causing spp.

View Article and Find Full Text PDF

Two strains, B21-013 and B21-037, were isolated from agricultural soils located in the province of Quebec, Canada, as part of a screening for plant-beneficial bacteria able to suppress Xanthomonas hortorum pv. and other lettuce bacterial pathogens. Here, we report the genome sequences of these two organisms.

View Article and Find Full Text PDF

The soybean cyst nematode (, SCN), is the most damaging disease of soybean in North America. While management of this pest using resistant soybean is generally still effective, prolonged exposure to cultivars derived from the same source of resistance (PI 88788) has led to the emergence of virulence. Currently, the underlying mechanisms responsible for resistance breakdown remain unknown.

View Article and Find Full Text PDF

A Decade of Hidden Phytoplasmas Unveiled Through Citizen Science.

Plant Dis

November 2023

Départment de phytologie, Faculté Des sciences de l'agriculture et de l'alimentation, Université Laval, Quebec City, Quebec, Canada.

Climate change is impacting agriculture in many ways, and a contribution from all is required to reduce the imminent losses related to it. Recently, it has been shown that citizen science could be a way to trace the impact of climate change. However, how can citizen science be applied in plant pathology? Here, using as an example a decade of phytoplasma-related diseases reported by growers, agronomists, and citizens in general, and confirmed by a government laboratory, we explored how to better value plant pathogen monitoring data.

View Article and Find Full Text PDF

This study investigated the phylogenetic relationship of grapevine Pinot gris virus (GPGV) isolates from Canada with GPGV isolates reported worldwide. Full-length genomes of 25 GPGV isolates representing the main four grape-growing regions in Canada (British Columbia, Ontario, Nova Scotia and Quebec) were sequenced and compared to genomes of 43 GPGV isolates representing eight countries and three continents. Phylogenetic analysis based on full genome sequences revealed an unambiguous separation of North American GPGV isolates with isolates from Europe and Asia.

View Article and Find Full Text PDF

Draft Genome of the Insect-Parasitic Nematode .

J Nematol

February 2022

Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu Research and Development Centre, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada.

Article Synopsis
  • This text discusses a newly sequenced insect-parasitic nematode that specifically infects the carrot weevil.
  • The sequence represents the first for this species and for the Allantonematidae family, utilizing both short and long DNA sequencing techniques.
  • The assembled draft genome has a size of 80.6 Mb and is organized into 152 scaffolds.
View Article and Find Full Text PDF

Temperature influences all aspects of insect physiology and behaviour, including reproduction. Adverse temperatures can decrease mating success and sperm transfer, leading to increased sex ratio (more males) in populations of haplodiploid organisms. We tested the effect of five temperatures on the reproduction of the egg parasitoid Anaphes listronoti.

View Article and Find Full Text PDF

Traits are the intermediate by which species respond to environmental filters and influence ecosystem functions. With the myriad of biogeochemical processes controlled by fungi, the past decade has witnessed a rising interest in applying trait-based approaches, core to the toolkit of plant and animal ecophysiologists, to fungi. One of the first challenges to tackle when working on fungal ecophysiology is to circumscribe the very definition of what we consider a fungal trait.

View Article and Find Full Text PDF

Background: The introgression of a transgene conferring glyphosate resistance from Brassica napus (rapeseed, canola) to Brassica rapa weeds (bird rape) was documented at a single location in 2007. In 2015, several cases of glyphosate resistant mustard were reported by growers in areas where rapeseed was seldom grown.

Results: Survey result indicated glyphosate resistant bird rape mustard is present in areas where glyphosate tolerant corn and soybean are often grown in rotation.

View Article and Find Full Text PDF