THE COELOMYCETES - University of Agriculture Faisalabad

Report
THE COELOMYCETES
PROF. SYED QAISER ABBAS
Ex-Chairman Department of Botany
GC University, Faisalabad
THE COELOMYCETES

Fungi imperfecti or (Deuteromycotina)

having conidia and conidiogenous cells in cavity
lined by:





fungal tissues;
host tissues
fungal tissues
host tissues both
The most important group causing diseases in;



Plants;
Animals; and
human beings.
THE COELOMYCETES

Fungi of Cosmopolitan Distribution

well known plant pathogens with wide host range



Macrophomina phaseolina,
Lasiodiplodia undulata (=L. theobronae)
Ascochyta pisi
Taxonomy in Historical Perspective




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

Alexopoulos & Mims (1979)

kingdom Myceteae



Gymnomycota
Mastigomycota
Amastigomycota: Achlorophyllous; absorptive nutrition;
generally without flagella; cells have spindle fiber which
functions during nuclear division instead of a centriole.

Amastigomycota
 sub-Division Zygomycotina;
 sub-Division Ascomycotina;
 sub-Division Basidiomycotina;
 sub-Division Deutromycotina.
Taxonomy in Historical Perspective

Division Deuteromycotina (an artificial taxon)

One class Deuteromycetes



Subclass Hyphomycetidae
Subclass Aganomycetidae:
Subclass Coelomycetidae



order Sphaeropsidales (Having pycnidial condiomata)
order Melanconiales (having acervular condiomata)
Sutton (1977, 1980)

Coelomycetes



order Sphaeropsidales (Having pycnidial condiomata)
order Melanconiales (Having acervular condiomata)
order Pycnothyriales (Having pycnothyrium conidiomata)
Class Deuteromycetes

-Form-subclass: Coelomycetidae
(Coelomycetes)

Form-order: Sphaeropsidales (pycnidial)





Form-order: Pycnothyriales (Pycnothyrium)


Form-family: Sphaeropsidaceae
Form-family: Nectrioidaceae
Form-family: Leptostromataceae
Form-family: Discellaceae
Form-family Pycnothyriacea
From-order: Melanconiales (acervulus)

Form-family: Melanconiaceae
Class Deuteromycetes

Form-subclass: Hyphomycetidae
(Hyphomycetes)

Form-order: Moniliales





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)

Phoma-type (Conidiomata Pycnidial, dark colored, leathery to carbonaceous,
stromatic or non-stromatic pycnidia generally with a circular ostiole)

Zythia (Nectria)-type (Conidiomata Pycnidial as in Phoma-type, but light
colored, and sometimes waxy)

Leptostroma-type (Conidiomata shield-shaped)

Discella-type (Conidiomata more or less cup shaped)

Pycnothyrial Type (Conidiomata pycnothyrium)
Eustomata Type (Conidiomata Eustomatic, Multilocular of complex

structure of different shapes)
Current fungal Classification

(Before 1969, ) Three kingdom system concepts




Prokaryotae
Animalia
Plantae
Five kingdom system by Whittaker (1969)





Monera
Protista
Fungi
Animalia
Plantae
Current Status

Dick 1995: (Using Genetic engineering and by rDNA finger
printing methods)






Monera
Protista
Fungi
Animalia
plantae
kingdom Straminipila
• Current Status

Alexopoulos et al (1995) Protista








Phylum Plasmodiophoromycota,
Phylum Dictyostleiomycota
Phylum Acrasiomycota
Phylum Myxomycota
Monera
Animalia
plantae kingdom
Fungi




Phylum Chytridiomycota
Phylum zygomycota
Phylum Ascomycota
Phylum Basidiomycota
Current Status

Alexopoulos et al (1995) Stramenopila.





Phylum Oomycota
Phylum Hyphochytridiomycota
Phylum Laburinthulomycota
Diatoms
Brown algae
Recent Position of Deuteromycetes

Alexopoulos et al (1995)



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)

All asexually reproducing fungi as Mitosporic fungi
and also not divided into orders and families.

similar documents