A cytological and ultrastructural study on the maturation and germination of oospores of Plasmopara viticola from overwintering vine leaves

cell structure enfermedades fungosas estructura celular flagella fungal diseases fungal spores germination grapes italia italie italy maladie fongique maturation mitochondria mitochondrie mitocondria noyau cellulaire nucleo nucleus oospores pathogens plasmopara plasmopara viticola raisin spore fongique structure cellulaire ultraestructura ultrastructure uva vacuole vacuoles zoospores