Persistent Epstein-Barr Virus Infection of Epithelial Cells Leads to APOBEC3C Expression and Induces Mitochondrial DNA Mutations.

Upon infection with the virus, cells increase the expression of cytidine deaminase APOBEC3 family genes. This leads to the accumulation of C-to-T mutations in the replicating viral genome and suppresses viral propagation. In contrast, herpesviruses, including Epstein-Barr virus (EBV), express genes that counteract APOBEC3 during lytic infection.

Identification of Mammaliicoccus fleurettii as the source of a methicillin-resistant gene in a First Nation reserve lake in Manitoba, Canada.

Our study aimed to identify the bacterial source of a previously detected mobile antibiotic-resistant gene, , found in a lake that serves as a source to a water treatment plant operated by a First Nation reserve. Three methicillin-resistant presumptive spp. isolated from the sample using selective media were verified as positive by PCR.

Comparative mitogenomics of Leptographium procerum, Leptographium terebrantis and Leptographium wingfieldii, an invasive fungal species in Canadian forests.

Leptographium wingfieldii is a fungal associate of Tomicus piniperda (the pine shoot beetle) and pathogen of pines and this species is an agent of blue stain in sapwood on infected trees. This fungus was first reported from Europe and has been recently introduced to Canadian forests. Ten new mitogenomes have been sequenced and characterized, including seven strains of L.