Classification of Algae

Classification of Algae

1. Chrysophyta

   • Golden - brown algae
   • produce domoic acid
   • unicellular
   • cell wall - peptin and silica
   • sexual reproduction
   • storage material - oil

2. Euglenophyta

   • Green colour
   • unicellular flagellated
   • no sexual reproduction
   • storage material - glucose polymer
   • can spontaneously lost chlorophyll (dark)

3. Pyrrophyta

   • unicellular plankton
   • Brownish
   • 2 flagella in perpendicular opposing grooves
   • can cause 'red tides'
   • cell wall - cellulose
   • storage material - starch

4. Chlorophyta

   • Green algae
   • cellulose cell walls
   • unicellular or multicellular
   • cholorophyll a and b
   • store glucose polymer

5. Phaeophyta

   • Brownish colour
   • macroscopic
   • multicellular
   • cell wall - cellulose / algin
   • sexual reproduction
   • storage material - carbohydrate

6. Rhodophyta

   • Reddish colour
   • red pigment absorb blue light
   • cell wall - cellulose / agar
   • sexual reproduction
   • habitat - marine