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Today the topic is Ascomycetes, under Fungi
classification
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Speaker- Sonali Ghatak & Editor- Anindya Bhattacharya
Let’s start Today’s Topic.
ASCOMYCETES
• These
are unicellular as well as multicellular fungi.
• In the latter, mycelium is septate.
• The asexual spores formed in chains are
called conidia. These detach from
the 
parent and form new mycelia.
• The asexual spores are conidia produced
exogenously on
the special mycelium called conidiophores.
Conidia 
on germination produce mycelium.
Sexual spores are called ascospores which
are produced endogenously in sac like asci
(singular ascus).
These asci are arranged in different types
of fruiting
bodies called ascocarps.
• Some examples are Aspergillus, Claviceps
and Neurospora.
Neurospora is used extensively in biochemical
and genetic work.
It is known as Drosophila of plant kingdom.
Many members like morels and buffles are edible
and are considered delicacies.
Here, you can see the structure of ascomycetes
having developing meiotic asci, mature asci
and sterile hyphae.
• Diverse species, almost 64000 species
can be seen
• Unicellular yeast has pseudomycellium.
Unicellular yeast itself divides its cell
like mycelium, so it’s called Pseudomycellium;
Psudo means not real
• In some cases, Male and female can be
differentiated, male sex cell is called antheridium,
and female part is called ascogonium.
• Plasmogamy that is fusion of protoplasm
,then karyogamy that is fusion of nucleus.
• In some cases, Dikaryophase can be seen
If after plasmogamy karyogamy is not occurred
immediately, in intermediate phase Dikaryophase
is occurred then karyogamy happens.
Here you can see the asexual and 
sexual mode of replication.
Some ascomycetes - morel, mold and yeast.
Here, you can see asci , male and female organs
and formation of mycelium.
Three types of ascocarp can be seen
Cleistothecium – closed, ball shaped
Apothecium- Open, cup shaped
Perithecium- Pitcher or flusk shaped.
So we completed 
ascomycetes
Thank You.
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