Remarks about Algal Chemistry

Russell G. Rhodes

Department of Biology

Missouri State University

Spring 2010

 

Algal pigments

Chlorophyll a- all algae have this pigment

Chlorophyll b- greens, euglenoids, and charophytes have this pigment

Chlorophyll c- chrysophytes, xanthophytes,  bacillariophytes, cryptophytes, reds, browns have this pigment

Phycocyanin- blue greens, cryptophytes, reds have this pigment

Phycoerythrin- blue greens, cryptophytes, reds have this pigment

Haematochrome- the pigment of eyespots in euglenoids, and other algae

Xanthophyll- brown algae, chrysophytes, xanthophytes, bacillariophytes have this pigment

Carotene- most algae have this pigment

Fucoxanthin- diatoms, finoflagellates and brown algae have this pigment

Peridinin- dinoflagellates have this pigment

 

Algal storage products

Starch-

Oil-

Chyrsolaminarin

Floridian starch

 

Algal walls

Cellulose- green algae, some chrysophytes,  and reds

Silicon

Calcium carbonate

Alginic acid- component in brown algae

 

 

Algal sheaths

 

Other algal attributes

Eyespots- haematochrome