Lee Kong Chian Natural History Museum

Pleurotaenium sp. Nageli, 1849

Kingdom:Plantae
Phylum/Division:Chlorophyta
Class:Zygnematophyceae
Order:Zygnematales
Family:Desmidiaceae
Genus:Pleurotaenium
Common Names:Desmid
Status:Common

Description

The cells are straight, with the length several times the breadth. The median constriction is well defined but not deep. The semicells are cylindrical with parallel sides throughout, although the ends may be somewhat attenuated and the poles always truncated. The bases of the semicells are always inflated. Chloroplasts are numerous, parietal, straight to undulate, band-shaped and extending the length of the semicells. There are several pyrenoids within the chloroplasts.

Read more about the Zygnematales order.
Read more about the Desmidiaceae family.

Localities

These are found in freshwaters throughout the main and offshore islands.

Locality Map

General Biology

These desmids are found among the freshwater plankton.

Life Cycle

Two mature cells come together in conjugation to form a zygore that germinates to give daughter cells.

Ecological Role

As a member of the freshwater plankton, these desmids are at the bottom of the food chain.

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