''Pythium ultimum'' var. ''ultimum'' is a

plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomyc ...

infecting

potato The potato is a starchy food, a tuber of the plant ''Solanum tuberosum'' and is a root vegetable native to the Americas. The plant is a perennial in the nightshade family Solanaceae. Wild potato species can be found from the southern Unit ...

References

External links

Pythium Genome Database

Index Fungorum

USDA ARS Fungal Database
Water mould plant pathogens and diseases Potato diseases ultimum var. ultimum {{Plant-disease-stub