Pages

Friday 1 March 2013

Outline Classification of Protozoa by Levine et al(1980)


Subkingdom :- Protozoa


Characters :-


(i) They are usually microscopic  & single celled animal & the single cells performs all the vital activities of the body.
                 
(ii) Body may be naked or covered by pellicle or enclosed in a shell.
                 
(iii) Main locomotory organs are pseudopodia, flagella or cilia (in sporozoa well define locomotory organs are absent).
                 
(iv) Nucleus single or multiple, which in sac like, oval or biconvex & contains a thick endosome.

Phylum :- Sarcomastigophora


Characters :-


(i) Locomotory organs pseudopodia or flagella.
               
(ii Nucleus monomorphic.
               
(iii)Reproduction by fission or syngamy.


Examples :- Amoeba; Trypanosoma; Euglena; Opalina; Entamoeba; Leishmania;



fig:- Amoeba
Fig :- Euglena

Fig :- Trypanosoma
Fig :- Opalina




Phylum :- Apicomplexa


Characters :-


(i) It possess an apical complex which can be seen under electron microscope.
                 
(ii) All are generally inter cellular parasite & lack locomotory organ.
                 
(iii) Micropore may be present at certain stage.


Examples :- Plasmodium; Monocystis;



Fig:- Plasmodium
Fig:-Monocystis















Phylum :- Ciliophora


Characters :-


(i) Locomotory organs are simple cilia or complex ciliated organelles.
                 
(ii) Nucleus are of two types, one micro nucleus & other macro nucleus.
                 
(iii) Presence of cytostome & cytopyge.


Examples :- Paramoecium; Balantidium; Nyctotherus; Tetrahymena;



Fig:- Paramoecium
Fig :- Balantidium coli













Fig :- Nyctotherus
Fig :- Tetrahymena





Phylum :- Myxozoa


Characters :-


(i) Multicellular origin of spore.
                 
(ii) Polar capsule one to many.
                 
(iii) All are parasites in the blood or coelom or cells of cold blood vertebrates.


Example :- Myxozoa


Fig:- Myxozoa












Phylum :- Microspora


Characters :-


(i) Spore single celled, spore wall is without any pore.
                 
(ii) Sporoplasm is with one or two nuclei.
                 
(iii)Polar cap & polar tubules are always present.


Example :- Microspora;




Fig:- microspora















Phylum :- Ascetospora


Characters :-


(i) Spores are generally multicellular, may be single celled.
                 
(ii) All are parasite.
                 
(iii) Sporoplasm may be one or two or many types.


Example :-Ascetospora;


Fig:- Ascetospora






       
                 





2 comments:

  1. No doubt the attempt is good but the Phyla should be given in a complete & sequencial manner with important examples. Dont miss any Phylum.

    ReplyDelete

Thanks for your comments.....