Six vegetative incompatibility (vic) loci have been identified in Cryphonectria parasitica based on barrage formation during mycelial interactions. We used hygromycin B- and benomyl-resistance as forcing markers in C. parasitica strains to test whether heteroallelism at each vic locus prevents heterokaryon formation following mycelial interactions. Paired strains that had allelic differences at...

1. The cellular mechanisms by which neurons of the ferret perigeniculate nucleus (PGN) participate in the generation of spindle waves and slowed absence seizure-like oscillations were investigated with intracellular and extracellular recording techniques in geniculate slices maintained in vitro. 2. During spindle wave generation, PGN neurons generated repetitive (2-9 Hz) high frequency (up to 5...

Freshwater conservation efforts require an understanding of how natural and anthropogenic factors shape the present-day biogeography of native and non-native species. This knowledge need is especially acute for imperiled native fishes in the highly modified Lower Colorado River Basin (LCRB), USA. In the present study we employed both a taxonomic and functional approach to explore how natural an...

L’Algérie est dans une région à climat aride, ceci nécessite gestion rationnelle de la ressource en eau. Selon l’état des connaissances actuelles, mobilisation eaux par le biais barrages a commencé ouvrages dérivation avant l’époque coloniale. Pendant cette période (1830–1962), on compte l’édification seize d’une capacité totale d’un milliard m3. Après l’indépendance, grands ont été érigés pour...