In taxonomy, the Oedogoniales are an order of filamentous freshwater green algae, specifically of the Chlorophyceae. The order is well-defined and has several unique features, including asexual reproduction with zoospores that possess a subapical ring of many short flagella, which are known as stephanokont. It also has a highly specialized type of oogamy, and an elaborate method of cell division which results in the accumulation of apical caps. The order is comprised of one family which has three genera. Some common features between these genera may be obscure. The hairs of Bulbochaete and the heterotrichous system Oedocladium are similar to Chaetophorales, with which they may share a distant relationship. Of the genus Oedogonium there are over 330 species, about 70 species of Bulbochaete, and 10 species of Oedocladium. More than half of these species are known to North America. Many of the species are used by aquarium owners.
Chloroplast DNA sequence of the green alga Oedogonium cardiacum (Chlorophyceae): Unique genome architecture, derived characters shared with the Chaetophorales and novel genes acquired through horizontal transfer.(Research article)
Jun 16, 2008; Authors: Jean-Simon Brouard ; Christian Otis ; Claude Lemieux ; Monique Turmel (corresponding author)  Background The...