Tonoplast Sucrose Trafficking Modulates Starch Utilization and Water Deficit Behavior in Poplar Leaves.

Leaf osmotic adjustment by the active accrual of compatible organic solutes (e.g. sucrose) contributes to drought tolerance throughout the plant kingdom.

Ustilago maydis phosphodiesterases play a role in the dimorphic switch and in pathogenicity.

Components of the cAMP (cyclic AMP) signalling cascades are conserved from fungi to humans, and are particularly important for fungal dimorphism and pathogenicity. Previous work has described two phosphodiesterases, UmPde1 and UmPde2, in Ustilago maydis which show strong phosphodiesterase activity. We further characterized the biological function(s) of these phosphodiesterases in U.

Role of Hsl7 in morphology and pathogenicity and its interaction with other signaling components in the plant pathogen Ustilago maydis.

The phytopathogenic fungus Ustilago maydis undergoes a dimorphic transition in response to mating pheromone, host, and environmental cues. On a solid medium deficient in ammonium (SLAD [0.17% yeast nitrogen base without ammonium sulfate or amino acids, 2% dextrose, 50 μM ammonium sulfate]), U.