Nematophagous fungi: Hohenbuehelia, the perfect state of Nematoctonus

  title={Nematophagous fungi: Hohenbuehelia, the perfect state of Nematoctonus},
  author={George L. Barron and Y. Dierkes},
A predatory Nematoctonus species (N90) isolated from farmyard soil in Ontario produced gill-forming basidiocarps of Hohenbuehelia on potato dextrose agar. In the presence of nematodes, discharged basidiospores germinated to produce short aerial stalks with terminal adhesive knobs. Germinated basidiospores adhered to the cuticle of nematodes to initiate monokaryotic infection cycles. Multiple basidiospore infections on a single host resulted in dikaryotization in the host body. Crossing single… 

Antibiotics from the Nematode-Trapping Basidiomycete Nematoctonus robustus

The production of these compounds by Nematoctonus, a known anamorph of Hohenbuehelia reveals also a close chemotaxonomic relationship between the sexual and imperfect stage of these basidiomycetes.

Costa Rican species of Nematoctonus (anamorphic Pleurotaceae)

Six morphospecies of Nematoctonus, all previously described, were isolated from fruiting bodies of Hohenbuehelia and from 439 samples of soil and organic debris collected in all 12 Holdridge life zones in Costa Rica.

Encapsulation and immobilization of a mycophagous nematode by two Sphaerobolus species

It is hypothesized that when the feeding nematodes pierce a specialized structure found in Sphaerobolus cultures, referred to as a gloeocystidium, the contents are released and solidify on the nematode heads and prevent further hyphal grazing and subsequently leading to death of the Nematodes.

Agarics, clavarioid and some heterobasidiomycetous fungi from Northern Thailand

51 species of agaricoid, clavarioid, and heterobasidiomycetous fungi are recorded from Thailand. 40 species are new to the area. Hohenbuehelia panelloides Hoiland sp. nov. is described and Leccinum


It is evident from results showing the effect of temperature on the biology of N.robustus that 20 0 C was most optimum temperature for both growth and sporulation.

Phylogenetic analyses of Nematoctonus and Hohenbuehelia (Pleurotaceae)

Phylogenetic analyses support Hohenbuehelia–Nematoctonus as a monophyletic clade of the Pleurotaceae, within which the species were placed in five main subclades.

Coprinus comatus: A basidiomycete fungus forms novel spiny structures and infects nematode

Experiments show that spiny balls are not chlamydospores because of the absence of nuclei in the structures and quick formation within 3 d in a young colony, and Infection of nematode by the fungus occurs only after the nematodes are immobilized (feeble or dead), probably by a toxin.

Acanthocytes of Stropharia rugosoannulata Function as a Nematode-Attacking Device

It is shown that the nematode-attacking activity of this fungus is carried out by these spiny acanthocytes and that mechanical force is an important factor in the process.

Microcolonies of bacteria as a nutrient source for lignicolous and other fungi

Under low nutrient conditions hyphae of certain fungi are strongly attracted to microcolonies of bacteria belonging to the genera Pseudomonas and Agrobacterium. Hyphae of the fungi penetrate the

The genus Pleurotus in Argentina

It is concluded that in Argentina there are, so far, six species of Pleurotus, namely P. djamor, the latter with three varieties: var.