Presented by Faria Naznin,Department of Agriculture,Student of Noakhali Science And technology University

1. PRESENTATION ON

2. PRESENTED BY
FARIA NAZNIN
SESSION- 2017-18
DEPARTMENT OF AGRICULTURE
STUDENT OF NOAKHALI SCIENCE & TECHNOLOGY UNIVERSITY

3. CONTANTS
• ABOUT ZYGOMYCOTINA
• CHARACTERISTICS OF ZYGOMYCOTINA
• CLASS OF ZYGOMYCOTINA
• ZYGOMYCETES
• ASEXUAL REPRODUCTION OF ZYGOMYCETES
• SEXUAL REPRODUCTION OF ZYGOMYCETES
• LIFE CYCLE OF ZYGOMYCETES
• CLASS OF ZYGOMYCETES
• TRICOMYCETES
• ORDER OF TRICOMYCETES

4. ABOUT ZYGOMYCOTINA
•The name Zygomycotina comes from forming special sexual
spore is called zygospore,which is resistant spherical spores are
formed during sexual reproduction.
•They are mostly terrestrial in habitat ,living in soil or on
decaying plant or animal material.
• It is also known as conjugative fungi

5. CHARACTERISTICS OF ZYGOMYCOTINA
1.It produce cell wall contains chitin
2.Somatic phase as mycelia , hyphae which are generally coenocytic.
3.Gametangial copulation is a type of sexual reproduction in
zygomycotina in general the gametenia fuse with each other ,loose
their identity and develop in to zygospore
4.Mosty reproduce by asexually by producing sporangiospore.
5.Chlamydosporees are another type of asexual spores the can
produce.

6. CLASS OF ZYGOMYCOTINA
This subclass include 2 classes -
 Zygomycetes :
Saprobic,Rarely Parasitic or predacious
 Trichomycetes :
Attached with arthropods
Fig :Zygomycetes
Fig: Trichomycetes

7. ZYGOMYECETES
•Most of zymycetes have rapidly growing hypahe ,but some are unicelluler
•They are generally coenocytic ,but but forming septa only where reproductive structures are formed.
•Zygomycetes carry out asexual reproduction by means of spores produced in sporangia. They
also produce thick-walled sexual structures called zygosporangia (singular zygosporangium), which can
remain dormant for long periods.
Ex:Rhizopus,Absidia,Mucor

8. ASEXUAL REPRODUCTION OF ZYGOMYCETES
Reproduce asexually by sporangiospores within a
special sac called sporangium in most of the order of
zygomycetes.
conidia in the Entomophthorales and
arthrospores in some Tichomycetes
Sporangium types (4 types)
1. True sporangium
2. Sporangioles - much smaller than true sporangia.
No columella produced and few spores (1-50)
3. Monosporous sporangium (one-spored
sporangium)
4. Merosporangium - sac containing 10-15
sporangiospores that occur in a linear sequence

10. SEXUAL REPRODUCTION OF ZYGOMYCETES
Zygometes sexually produce zygospore in zygosporangium.
Most of them are heterothalic.
They produce sexually when environmental conditions become unfavorable

11. LIFE CYCLE OF ZYGOMYCETES

12. CLASS OF ZYGOMYCETES
Generally divided into 7 orders
•. Mucorales - mainly saprotrophs , many to one Sporangiospore/sporangium
• Entomophthorales - mainly parasitic on arthropods, limited mycelium,
one sporangiospore/sporangiurm
•Glomales - obligate biotrophs, form arbuscuar mycorrhizae
•Kickxellales - produced septate hyphae and modified one spored sporangia
•Dimargaritales - mycoparasites
•.Zoopagales - parasites of small animals (amoeba, rotifers & nematodes)
and fungi including the lethal lollipop,
Zoophagus)
•Endogonales - saprotroph:s

13. TRICHOMYCETES
•Trichomycetes are obligately associated with an arthropod host: these fungi do not alow independently of
their hosts, live on land or in fresh or marine waters
•Thallus are attached to host by a holdfast that penetrates the lining of the gut or exoskeleton only and does not
penetrate living tissue.
•Thallus may be unbranched and aceptete or branched and septet

14. ASEXUAL REPRODUCTION
The asexual proparative structure is the tricospore – consist of an elongeted sporangium that contains a single
sporangiospore (Harpellaaes)
SEXUAL REPRODUCTION

15. ORDER OF TRICOMYCETES
contains 5 orders
1. Harpella
2. Smittium
3. Amoebidium
4. Asellaria
5. Enterobyrus