''Uncinula'' is a genus of fungi. Its species are

plant pathogens 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 ...

that cause powdery mildew diseases on various plant hosts. The genus is characterized by its dark chasmothecia which bear filamentous, hyaline appendages with hooked tips. Over one hundred species have been described from mostly dicotyledenous hosts. Braun and Takamatsu (2000) suggested that ''Uncinula'' should be considered a later synonym of '' Erysiphe''; not all subsequent researchers have accepted their conclusions. One notorious species, '' Uncinula necator'' (syn. ''Erysiphe necator''), attacks various species of grapes ( Vitis spp.) and can cause yield losses in European wine grapes. Other ''Uncinula'' species attack a wide variety of

dicotyledon The dicotyledons, also known as dicots (or, more rarely, dicotyls), are one of the two groups into which all the flowering plants (angiosperms) were formerly divided. The name refers to one of the typical characteristics of the group: namely, t ...

ous plants.

References

* Braun U, Takamatsu S. 2000. Phylogeny of ''Erysiphe'', ''Microsphaera'', ''Uncinula'' (Erysipheae) and ''Cystotheca'', ''Podosphaera'', ''Sphaerotheca'' (Cystotheceae) inferred from rDNA ITS sequences: Some taxonomic consequences. Schlechtendalia 4: 1-33.

External links

Index Fungorum

USDA ARS Fungal Database
Erysiphales Fungal plant pathogens and diseases Taxa named by Joseph-Henri Léveillé {{Leotiomycetes-stub