Drechslerella stenobrocha

Drechslerella stenobrocha is a microscopic soil mould that catches nematodes with three-celled constricting rings. When a nematode enters a ring, the ring cells triple in volume within about 0.1 s and hold it fast. It was the first constricting-ring fungus to have its genome sequenced, and it is used to study how fungi became nematode predators.

Species profile

Edibility

Not edible

Not edible; a microscopic mould with no food use.

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Mycology is an evolving science: names, classifications and safety information change as research advances. Entries are compiled from cited sources and reviewed, but may be incomplete or out of date — check the sources, and never rely on this library alone to identify or eat a mushroom.

Habitat

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Characteristics

Trap: three-celled constricting rings that inflate rapidly on contact (Liu et al. 2014). Conidiophores: simple, apex truncate and not swollen, bearing one conidium. Conidia: elongate-ellipsoidal, mostly 3-septate (1-3), 34-56.5 x 12.5-16.5 µm; no microconidia (Zhang et al. 2023 key). Li et al. (2013) describe its macroconidia as cylindric-ellipsoid and distinctly narrower than those of D. hainanensis. Genome: 29.02 Mb with 7,781 predicted protein-coding genes, smaller than Arthrobotrys oligospora (40.07 Mb, 11,479 genes) (Liu et al. 2014).