Phylum:
Ascomycota
The largest division of fungi, many are
parasite on plant and others are saprobic live on soil or on decaying
materials. the distinguishing characteristic of all it s members
is the ascus (pl. asci), a sac-like cell in which meiosis and karyogamy
(nuclear division) occur and within which the resulting meiospores
(specifically called ascospores) develop, during sexual reproduction. The
number of ascospores formed is usually constant and typically 8.
In the large majority the asci are elongated, either club- shaped or
cylindrical.,
One
of the most important features of ascus morphology, now proposed as the basis
for classification of Ascomycota is the structure of ascus wall. In
general two types of asci are recognized: the unitunicate and bitunicate,
Unitunicate asci have a single wall. Some have a built-in lid or operculum
Other asci have no operculum.
The fruiting bodies that make and hold the asci are called
ascocarps.
Phylum: Ascomycota
The largest division of fungi, many are
parasite on plant and others are saprobic live on soil or on decaying
materials. the distinguishing characteristic of all it s members
is the ascus (pl. asci), a sac-like cell in which meiosis and karyogamy
(nuclear division) occur and within which the resulting meiospores
(specifically called ascospores) develop, during sexual reproduction. The
number of ascospores formed is usually constant and typically 8.
In the large majority the asci are elongated, either club- shaped or
cylindrical.,
One
of the most important features of ascus morphology, now proposed as the basis
for classification of Ascomycota is the structure of ascus wall. In
general two types of asci are recognized: the unitunicate and bitunicate,
Unitunicate asci have a single wall. Some have a built-in lid or operculum
Other asci have no operculum.
The fruiting bodies that make and hold the asci are called
ascocarps.