Algae and Protozoa ~~

Assalamualaikum and Good Morning Dr. Wan! J

The last topic of Microbial Systematic is Algae and Protozoa.

Algae

There are 3 types distribution of algae ; planktonic, benthic and neustonic.

The classification of algae is in 7 division from 2 kingdoms.

The two kingdoms are ; protista and plantae.

For kingdom Protista they are unicellular eukaryotic algae. They are :

        I.            Chrysophyta

      II.            Euglenophyta

    III.            Pyrrhophyta (Dinoflagellates)

    IV.            Charophyta

      V.            Chlorophyta

For kingdom Plantae they are multicellular eukaryotic algae. They are :

        I.            Phaeophyta

      II.            Rhodophyta

Algae reproduction system is by asexual or sexual reproduction.

For asexual :

        I.            Binary fission

      II.            Fragmentation

    III.            Spores

For sexual :

        I.            Isogamy (gamete produce are identical)

      II.            Heterogamy (different types of gametes produce)

The benefit of algae are algae biofuel. Algae also harmful as algal blooms.

Protozoa

The unique features of protozoa are :

        I.            Ectoplasm

      II.            Endoplasm

    III.            Pellicle

    IV.            Nucleus

      V.            Have contractile, phagocytic and secretory vacuoles

Nutrition of protozoa are chemoautotrophic, but it have two types :

          I.            Holozoic nutrition

        II.            Saprozoic nutrition

The locomotory organelles are :

        I.            Pseudopodia

      II.            Flagella

    III.            Cilia

Asexual reproduction of protozoa is by binary fission while sexual reproduction of protozoa is by conjugation.

The classification of protozoa is based on :

        I.            Types of nuclei

      II.            Mode of reproduction

    III.            Mechanism of locomotion

Phylum of protozoa are :

        I.            Sarcomastigophora  ; flagellates and amoebae ; single type of nucleus

      II.           
Labyrinthomorpha

    III.            Apicomplexa

    IV.            Microspora

      V.            Ascestospora

    VI.            Myxozoa

  VII.            Ciliophora  ; ciliated and two types of nuclei

Sarcomastigophora have two subphylum :

1.      Mastigophora

        I.            Phytoflagellates (with chlorophyll)

      II.            Zooflagellates (without chlorophyll)

2.      Sarcodina

Till we meet again, BYE! J