Nematophagous Fungi: Guide by Philip Jacobs, BRIC-Version

Arthrobotrys oligospora

Arthrobotrys oligospora FRESENIUS 1850

Form Genus: Arthrobotrys CORDA 1839
Form Subfamily: Hyalodidymae
Form Family: Moniliaceae
Form Order: Moniliales (Hyphomycetes)
Form Class: Deuteromycetes (Fungi imperfecti)
Division: Eumycota

(System of anamorphs according to SACCARDO 1886)

Arthrobotrys oligospora ist the most frequent, most widespread and so far best investigated nematophagous fungus species. The ubiquitary fungus has been isolated from plenty of different substrates, e. g. from compost, decomposing wood and animal excrements (DRECHSLER 1937).
Concerning its growth behaviour and the form of its adhesive three-dimensional network traps it is similar to Arthrobotrys superba (DRECHSLER 1937).
The upright Conidiophores bear 20-30 groups of 5-20 two-celled, 16-30 µm long and 8-16 µm broad conidia clearly indented at the sept, whose distal cell is about twice as large as the proximal cell (HAARD 1968).

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Nematode captured in an adhesive three-dimensional network of Arthrobotrys oligospora

Adhesive three-dimensional network of Arthrobotrys oligospora

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