The stem canker (blackleg) fungus,Leptosphaeria maculans, enters the genomic era

The LmSNF1 Gene Is Required for Pathogenicity in the Canola Blackleg Pathogen Leptosphaeria maculans

Leptosphaeria maculans is a fungal pathogen causing blackleg in canola. Its virulence has been attributed, among other factors, to the activity of hydrolytic cell wall degrading enzymes (CWDEs). Studies on the pathogenicity function of CWDEs in plant pathogenic fungi have been difficult due to gene redundancy. In microorganisms many CWDE genes are repressed by glucose and derepressed by the fun...

Big-Bang Nucleosynthesis Enters the Precision Era

The last parameter of big-bang nucleosynthesis, the baryon density, is being pinned down by measurements of the deuterium abundance in high-redshift hydrogen clouds. When it is determined, it will fix the primeval light-element abundances. D, He and Li will become “tracers” for the study of Galactic and stellar chemical evolution, and big-bang nucleosynthesis will become an even sharper probe o...

Analysis of two pathogenicity genes of the blackleg fungus Leptosphaeria maculans

Pterostilbene Is a Potential Candidate for Control of Blackleg in Canola

Two stilbenes, resveratrol and pterostilbene, exhibit antifungal activity against Leptosphaeria maculans, the fungal pathogen responsible for blackleg (stem canker) in canola (Brassica napus). In vitro studies on the effect of these stilbenes on L. maculans mycelial growth and conidia germination showed that pterostilbene is a potent fungicide and sporicide, but resveratrol only exerted minor i...

IJCH Enters a New Era

T he International Journal of Circumpolar Health has undergone several major changes since its first appearance in 1972 under the name of Arctic Medical Research. As 2012 begins, it has undergone further change, particularly to keep pace with the changing publishing environment and technological advances. The journal is now an exclusively online journal, and has ceased the printing and mailing ...