Oidium (genus)
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Oidium is a genus of Deuteromycetes, where traditionally most anamorphs of the order Erysiphales are included. Most of them are plant pathogens causing different forms of powdery mildew, for example:
- Oidium alphitoides (= O. quercinum) = Microsphaera alphitoides (on oaks)
- Oidium anacardii (= Acrosporium anacardii) (on cashew)
- Oidium arachidis (on peanut)
- Oidium balsamii = Erysiphe verbasci (on mulleins)
- Oidium begoniae (=O.cyclaminis, O.lini, O.violae) = Erysiphe polyphaga (on cornsalad, Calluna and Erica)
- Oidium candicans (= Monilia candicans)
- Oidium caricae (on papayas)
- Oidium caricae-papayae (on papayas)
- Oidium caricicola (on papayas)
- Oidium chrysanthemi = Erysiphe cichoracearum (on numerous plant species, especially Asteraceae)
- Oidium carpini
- Oidium chartarum (= Torula chartarum)
- Oidium cyparissiae (= Acrosporium cyparissiae) (on cypress)
- Oidium erysiphoides = Sphaerotheca fuliginea (on melons, watermelons and cucumbers)
- Oidium euonymi-japonicae (on spindle-trees)
- Oidium farinosum = Podosphaera leucotricha (on apples)
- Oidium fructigenum = Monilia fructigena (on Rosaceae)
- Oidium helichrysi (on strawflowers)
- Oidium heveae (on rubber tree)
- Oidium hortensiae = Microsphaera polonica (on bear's breeches and hydrangea)
- Oidium indicum (on papayas and other tropical fruits)
- ''Oidium lauracearum (on laurel)
- Oidium lini ( = Euoidium lini)(on flax)
- Oidium lycopersicum (on tomatoes)
- Oidium mangiferae = Erysiphe cichoracearum (on mangos)
- Oidium monilioides (=O.tritici)= Blumeria graminis (on cereals)
- Oidium neolycopersici (on tomatoes)
- Oidium oxalidis = Microsphaera russellii (on sorrels)
- Oidium papayae (on papayas)
- Oidium pullorum
- Oidium sesami
- Oidium tuckeri = Uncinula necator (on grapes)
Oidium albicans has been a parallel name of the yeast Candida albicans (not related to the powdery mildew).
Some other species of medical importance previously classified as Oidium include:
- Oidium cutaneum = Trichosporon cutaneum (cause of some human fungal diseases)
- Oidium lactis (=Oidium pulmoneum) = Geotrichum candidum (in soil, water and air, also belongs to normal human flora)
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