algae classification
TRANSCRIPT
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CLASSIFICATION OF ALGAE BY G.M SMITH
PRESENTED BYABOLI VICHARE
M.SC PART - 1
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Contents :-Introduction of algae
Classification of algae
Introduction of division chlorophyta
Introduction of division euglenophyta
Introduction of division pyrrophyta
Refrrence
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WHAT IS ALGAE?????????
Algae is an autotrophic plant which prepare food by photosynthesis.
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CLASSIFICATION OF ALGAE
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DIVISION CLASS
CHLOROPHYTA CHLOROPHYCEAE , CHAROPHYCEAE
EULENOPHYTA EULENOPHYCEAE
PYRROPHYTA CRYPTOPHYCEAE, DESMOPHYCEAE, DINOPHYCEAE
CHRYSOPHYTA XANTHOPHYCEAE, CHRYSOPHYACEAE, BACILLARIOPHYCEAE
PHAEOPHYTA ISOGENERATAE, HETEROGENERATAE, CYCLOSPORAE
CYANOPHYTA MYXOPHYCEAE
RHODOPHYTA RHODOPHYCEAE
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Division :- Chlorophyta
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Habit :-Fresh water algae (mostly) & as well as Marine water algae
Pigments :- Chlorophyll a, chlorophyll b, carotin & xanthophylls
Reserve food material :- Accumulate starch as photosynthetic reserve.
Range of thallus :- Unicellular & Multicelluar
Reproduction :- Asexual & Sexual
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CHLOROPHYTA
Chlorophyceae
Charophyceae
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Chlorophyceae• Habit :- Fresh water & marine
water algae • Pigment :- Chl.a , Chl.b ,
Xanthophyll , Carotin • Reserve food material :-
Accumulate starch as photosynthetic reserve.
• Range of thallus :- Always multicellular
• Reproduction :- Asexual
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Order’s of Class Chlorophyceae :-
1. Volvocales2. Tetrasporales3. Ulotrichales4. Ulvales5. Schizogoniales6. Cladophorales7. Oedogoniales8. Zygnematales9. Chlorococcales10.Siphonales11.Siphonocladiales
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VOLVOCALES :- EG:- VOLVOX
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TETRASPORALES:-EG :- TETRASPORA
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ULOTRICHALES :-EG:-ULOTHRIX
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ULVALES :-EG:- ULVA
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Schizogoniales :- Habit :- Fresh water as well as marine
water algaePigments :- Chl.a , Chl.b (Single stellate
chloroplast) Reserve food material :- Accumulate
starch as photosynthetic reserve. Range of thallus :- Filamentous, plate
like or solid cylinders.Reproduction :- No sexual reproduction &
Asexual reproduction is by means of aplanospores & akinetes.
Eg. Praaiola mexicana
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CLADOPHORALES:-EG:- CLADOPHORA
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OEDOGONIALES :-EG:- OEDOGONIUM
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ZYGNEMATALES :-EG:- ZYGNEMA
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CHLOROCOCCALES :-EG:- CHLOROCOCCUM
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SIPHONALES :-EG :-VAUCHARIA
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SIPHONOCLADIALES :-EG:-VALONIA
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Charophyceae :- Habit :- Fresh water as well as marine
water algae Pigments :- Chl.a , Chl.b Reserve food material :- Accumulates
starch as photosynthetic reserve. Range of thallus :- Regular succession
of nodes & internodes , branched thallus.
Reproduction :- Sexual reproduction is oogamous.
Eg. Chara
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Division :- EUGLENOPHY
TA
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Habit :- Fresh water algaePigments:- Chlorophyll & carotinoids. Reserve food material :- An insoluble carbohydrate relate to starch.Range of thallus :- Motile cells have more than two flagella. Reproduction :- sexual reproduction seen in only one species & asexual reproduction is cresting stages (cysts).
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Order’s of class Euglenophyta:-
Euglenales Colaciales (Euglenocapsales)
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EUGLENALES :-EG:- EUGLENA
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COLACIALES(EUGLENOCAPSALES):-EG :- COLACIUM
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Division:- PYRROPHYTA
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Classes of division pyrrophyta :-
Class 1. CryptophyceaeClass 2. DesmokontaeClass 3. Dinophyceae
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Order’s of division pyrrophyta :-
Gymnodiniales Peridiniales Dinophysidales Rhizodiniales Dinocapsales Dinotrichales Dinococcales
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GymnodinialesEg :- Gymnodium
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PeridinialesEg :- Peridinium
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DinophysidalesEg:- Dinophysis
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RhizodinialesEg:- Dinamoebidium
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DinocapsalesEg:- Gloedinium
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DinococcalesEg:- Dinococcales
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Reference :- Algae by HC Bold.
Text book of botany by O.P Sharma.
Algae by Vashishta.
www.wikipedia.com.
College Botany .
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