- Mostly obligate parasite grow in host plants.
- Two types of haustoria present that is knob like and digitately branched.
- Both homothallic and heterothallic.
- Asexual reproduction by conidiophore.
- Sexual reproduction is followed by gametangial contact.
- Ascocarp is cleistothecium.
- Ascocarp contains various types of appendages.
- Mycelia conspicuous, growing mostly on plant surfaces.
- They are called powdery mildew fungi.
Occurrence and importance
The members of the family Eryspipahceae cause a group of plant diseases commonly known as powdery mildews.
Ornamental plants: Erysiphe poligoni.
Hyphae: Pale brown or hyaline, Mycelia septate wall. Branched, colony white powdery.
Mycelia fragments, oidiospore
Cleistothecium with appendages.
Classification on the basis of cleistothecial appendages:
There are four kinds of appendages present in a cleistothecium.
- Appendages flaccid, mycoloid type.
- Appendages rigid, dichotomously branched at the tip of the apex.
- Appendages rigid, tip circinately coiled and hook like appendages present at the tip of the apex.
- Appendages rigid, spear like, arising from a bulbous base and tip pointed.
Life cycle of Shaerotheca.