Sphaeropsidales is an order of
Coelomycetes
Coelomycetes are a form-class of fungi, part of what has often been referred to as Fungi imperfecti, Deuteromycota, or anamorphic fungi.
These are conidial fungi where the conidia form in a growing cavity in the host's tissue. The fruiting stru ...
fungi.
These are
conidial fungi where the
conidia form in a growing cavity in the host's tissue. The fruiting structures are spherical with an opening at the apex (
pycnidia
A pycnidium (plural pycnidia) is an asexual fruiting body produced by mitosporic fungi, for instance in the order Sphaeropsidales ( Deuteromycota, Coelomycetes) or order Pleosporales (Ascomycota, Dothideomycetes). It is often spherical or inve ...
).
Four
form-families can be distinguished.
Sphaeropsidaceae are fungi with pycnidia dark colored, leathery to carbonous, stromatic or non-stromatic generally provided with a circular opening.
Zythiaceae are fungi with pycnidia as in the Sphaeropsidaceae but light colored instead of dark, and soft or waxy instead of leathery.
Leptostromataceae are fungi wit hpycnidia shield-shaped or elongated, and flattened.
Excipulaceae are fungi where mature pycnidia are somewhat deeply cup-shaped. In the family Sphaeropsidaceae, species of the genus ''
Darluca'' are hyperparasitic on
rust
Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe2O3·nH2O) and iron(III) oxide-hydroxide (FeO(OH ...
s while species of ''
Cicinnobolus'' are hyperparasites of
powdery mildew
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as ...
. Their mycelium is grown longitudinally in the mycelium of their hosts.
Members of this order can produce
bisnaphthyl pigments, such as
Sphaerolone and
dihydrosphaerolone, or
2-hydroxyjuglone.
References
External links
inra.fr
Deuteromycota
{{Fungus-stub