Chaetophora

Schrank, 1783

Species Guides

1

Chaetophora is a of green in the Chaetophoraceae (order Chaetophorales, class Chlorophyceae). Molecular phylogenetic studies place Chaetophora in a clade with Draparnaldia and Pseudostigeoclonium within Chaetophoraceae. The genus includes freshwater such as Chaetophora attenuata, which has been studied for its extracellular metabolite production.

Pronunciation

How to pronounce Chaetophora: //kiːˈtɒfərə//

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Habitat

Freshwater environments. Chaetophora are aquatic inhabiting freshwater systems.

Diet

Photosynthetic , obtaining energy through .

Ecological Role

Primary producer in freshwater . Culture filtrates of Chaetophora attenuata have been observed to affect growth and of other , including suppression of conjugation in Spirogyra decimino and zoospore formation in conspecifics.

Similar Taxa

  • StigeocloniumHistorically confused with Chaetophora; molecular has clarified that Pseudostigeoclonium (formerly the Stigeoclonium helveticum clade) is sister to Chaetophora, while true Stigeoclonium belongs to a different clade within Chaetophoraceae.
  • DraparnaldiaClosely related forming a clade with Chaetophora within Chaetophoraceae; distinguished by morphological differences in thallus structure and branching patterns.

More Details

Phylogenetic position

Chaetophora forms a well-supported clade within Chaetophoraceae together with Draparnaldia and Pseudostigeoclonium gen. nov. This clade is distinct from the Stigeoclonium clade, resolving previous taxonomic confusion.

Extracellular metabolites

Chaetophora attenuata releases sugars (glucose, fructose, sucrose), organic acids (oxaloacetic acid, oxalic acid), (glycine, serine, aspartic acid, α-alanine), and protein into culture medium. Old culture filtrates produce allelopathic effects on other .

Sources and further reading