Algae - Research Article from Macmillan Science Library: Plant Sciences

This encyclopedia article consists of approximately 6 pages of information about Algae.
This section contains 1,617 words
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Algae

Scientists' concepts of which organisms should be termed algae (alga, singular; algae, plural; algal, adjective) have changed radically over the past two centuries. The term algae originally referred to almost all aquatic, photosynthetic organisms. But, as more has been learned about the evolutionary

EUKARYOTIC ALGAE
Division Common Name Pigments Habitats General Morphology
Glaucophyta Chlorophyll a Freshwater Unicellular flagellates
Phycocyanin
Rhodophyta Red algae Chlorophyll a Mostly marine Unicells, filaments, thalli; no flagellated stages; some calcified, some mucilaginous
Phycoerythrin
Phycocyanin
Cryptophyta Cryptomonads Chlorophyll a Marine and freshwater Mostly unicells
Chlorophyll c
Phycocyanin
Phycoerythrin
Heterokontophyta
(Ochrophyta)
Chrysophyceae Golden brown algae Chlorophyll a Freshwater Mostly unicells or colonies; biflagellate
Chlorophyll c
Fucoxanthin
Xanthophyceae Chlorophyll Chlorophyll a Mostly freshwater and terrestrial; some marine Coccoid, flagellate, or amoeboid unicells; colonies, uni- and multinucleate filaments; biflagellate
(Tribophyceae) Chlorophyll c
Eustigmatophyceae Chlorophyll a Freshwater and marine Unicells and coccoid; uni- or biflagellate
Violaxanthin
Bacillariophyceae Diatoms...

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This section contains 1,617 words
(approx. 6 pages at 300 words per page)
Buy the Algae Encyclopedia Article
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Algae from Macmillan. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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