ALGAE
PROBAL KR CHOWDHURY
Assistant Professor
Department of Botany
Women’s College, Agartala
,The term Algae are applied to vast assemblage of
organisms which are:
• Chlorophyll bearing,
• Autotrophic,
• Unicellular to multicellular organization,
• Either Prokaryotic or Eukaryotic in nature,
• Thallus in structure (not differentiated into
root, stem and leaf ), aquatic,
• Reproduce Vegetatively, asexually by spores or
sexually by union of gamets.
,1. Algae are chlorophyll bearing autotrophic
thalloid plant body.
2. Almost all the algae are aquatic.
3. The plant body may be unicellular to large
multicellular structure.
4. The multicellular complex thalli lack vascular
tissue & show little tissue differentiation.
, 5. The sex organs are generally unicellular but, when
multicellular, all cells are fertile & in most cases
the entire structure doesn’t have any protection
jacket.
6. Then zygote undergoes development either by
mitosis or meiosis, but not through embryo
formation.
7. Plants having distinct alternation of generations.
Both gametophyte and sporophyte generations -
when present in the life cycle are independent.
PROBAL KR CHOWDHURY
Assistant Professor
Department of Botany
Women’s College, Agartala
,The term Algae are applied to vast assemblage of
organisms which are:
• Chlorophyll bearing,
• Autotrophic,
• Unicellular to multicellular organization,
• Either Prokaryotic or Eukaryotic in nature,
• Thallus in structure (not differentiated into
root, stem and leaf ), aquatic,
• Reproduce Vegetatively, asexually by spores or
sexually by union of gamets.
,1. Algae are chlorophyll bearing autotrophic
thalloid plant body.
2. Almost all the algae are aquatic.
3. The plant body may be unicellular to large
multicellular structure.
4. The multicellular complex thalli lack vascular
tissue & show little tissue differentiation.
, 5. The sex organs are generally unicellular but, when
multicellular, all cells are fertile & in most cases
the entire structure doesn’t have any protection
jacket.
6. Then zygote undergoes development either by
mitosis or meiosis, but not through embryo
formation.
7. Plants having distinct alternation of generations.
Both gametophyte and sporophyte generations -
when present in the life cycle are independent.
