THE COELOMYCETES
PROF. SYED QAISER ABBAS
Ex-Chairman Department of Botany
GC University, Faisalabad
THE COELOMYCETES
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Fungi imperfecti or (Deuteromycotina)
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having conidia and conidiogenous cells in cavity
lined by:
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fungal tissues;
host tissues
fungal tissues
host tissues both
The most important group causing diseases in;
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Plants;
Animals; and
human beings.
THE COELOMYCETES
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Fungi of Cosmopolitan Distribution
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well known plant pathogens with wide host range
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Macrophomina phaseolina,
Lasiodiplodia undulata (=L. theobronae)
Ascochyta pisi
Taxonomy in Historical Perspective
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Grove (1919) Initial Treatment;
 Phyllosticta, Phomopsis and Phloeospora
Grove (1935, 1937)
 All fungi forming conidia in a cavity lined by fungal or
fungal and host or only host tissues.
Sutton (1962, 1963)
 Application the concept of conidiogenesis for taxonomic
treatment of Hyphomycetes of Hughes (1953) to
Coelomycetes
Kendrick (1979a, 1979b)
 Refined taxonomic treatment based on the concept of
conidiogenesis
Taxonomy in Historical Perspective
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Alexopoulos & Mims (1979)
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kingdom Myceteae
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Gymnomycota
Mastigomycota
Amastigomycota: Achlorophyllous; absorptive nutrition;
generally without flagella; cells have spindle fiber which
functions during nuclear division instead of a centriole.
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Amastigomycota
 sub-Division Zygomycotina;
 sub-Division Ascomycotina;
 sub-Division Basidiomycotina;
 sub-Division Deutromycotina.
Taxonomy in Historical Perspective
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Division Deuteromycotina (an artificial taxon)
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One class Deuteromycetes
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Subclass Hyphomycetidae
Subclass Aganomycetidae:
Subclass Coelomycetidae
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order Sphaeropsidales (Having pycnidial condiomata)
order Melanconiales (having acervular condiomata)
Sutton (1977, 1980)
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Coelomycetes
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order Sphaeropsidales (Having pycnidial condiomata)
order Melanconiales (Having acervular condiomata)
order Pycnothyriales (Having pycnothyrium conidiomata)
Class Deuteromycetes
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-Form-subclass: Coelomycetidae
(Coelomycetes)
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Form-order: Sphaeropsidales (pycnidial)
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Form-order: Pycnothyriales (Pycnothyrium)
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Form-family: Sphaeropsidaceae
Form-family: Nectrioidaceae
Form-family: Leptostromataceae
Form-family: Discellaceae
Form-family Pycnothyriacea
From-order: Melanconiales (acervulus)
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Form-family: Melanconiaceae
Class Deuteromycetes
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Form-subclass: Hyphomycetidae
(Hyphomycetes)
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Form-order: Moniliales
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Form-family: Moniliaceae (Hyaline conidia and
conidiophore)
Form-family: Dematiaceae (Coloured conidia and
conidiophore)
Form-family: Tuberculariaceae (Sporodochium)
Form-family: Stilbellaceae (Synemma)
Form-order: Agonomycetales (Mycelia
Sterilia)
CONIDIOMATAL STRUCTURES
(Six variants morphological types)
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Phoma-type (Conidiomata Pycnidial, dark colored, leathery to carbonaceous,
stromatic or non-stromatic pycnidia generally with a circular ostiole)
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Zythia (Nectria)-type (Conidiomata Pycnidial as in Phoma-type, but light
colored, and sometimes waxy)
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Leptostroma-type (Conidiomata shield-shaped)
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Discella-type (Conidiomata more or less cup shaped)
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Pycnothyrial Type (Conidiomata pycnothyrium)
Eustomata Type (Conidiomata Eustomatic, Multilocular of complex
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structure of different shapes)
Current fungal Classification
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(Before 1969, ) Three kingdom system concepts
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Prokaryotae
Animalia
Plantae
Five kingdom system by Whittaker (1969)
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Monera
Protista
Fungi
Animalia
Plantae
Current Status
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Dick 1995: (Using Genetic engineering and by rDNA finger
printing methods)
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Monera
Protista
Fungi
Animalia
plantae
kingdom Straminipila
• Current Status
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Alexopoulos et al (1995) Protista
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Phylum Plasmodiophoromycota,
Phylum Dictyostleiomycota
Phylum Acrasiomycota
Phylum Myxomycota
Monera
Animalia
plantae kingdom
Fungi
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Phylum Chytridiomycota
Phylum zygomycota
Phylum Ascomycota
Phylum Basidiomycota
Current Status
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Alexopoulos et al (1995) Stramenopila.
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Phylum Oomycota
Phylum Hyphochytridiomycota
Phylum Laburinthulomycota
Diatoms
Brown algae
Recent Position of Deuteromycetes
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Alexopoulos et al (1995)
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Second class members among “Perfect” sexually
reproducing organism (Ascomycota).
Not sub divided this artificial class into sub
classes or in orders.
Hawksworth et al (1995)
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All asexually reproducing fungi as Mitosporic fungi
and also not divided into orders and families.