Nematophagous fungi from decomposing cattle faeces in Argentina

SAUMELL CARLOS A.; FERNÁNDEZ ALICIA S.; FUSE LUIS.; RODRÍGUEZ MANUELA; SAGÜÉS MARÍA F.; IGLESIAS LUCÍA E.

REVISTA IBEROAMERICANA DE MICOLOGIA

ASOCIACION ESPANOLA MICOLOGIA-AEM

Lugar: Londres; Año: 2015 vol. 32 p. 252 - 256

1130-1406

Seventeen species from nine genera of nematophagous fungi were found in one hundred and six samples of decomposing cattle faeces in different livestock-rearing areas of Argentina. Twelve of the species isolated were nematode-trapping fungi and three species plus one fungus identified to genus level were endoparasitic fungi. Among the nematode-trapping species adhesive nets were the mechanisms of action most frequently observed; adhesive knots, constrincting and non-constricting rings and adhesive hyphae make for the rest. Adhesive conidia, ingested conidia, and mobile zoospores were the mechanisms of action associated with endoparasitic fungi. Arthrobotrys oligospora, Duddingtonia flagrans, Monacrosporium doedycoides, A. conoides and Drechmeria coniospora were the most frequently isolated species. Only A. conoides has been previously isolated from ruminant faecal samples in Argentina. Eight nematode-trapping fungal species are mentioned for the first time in Latin America, i.e. M. lysipagum, M. megalosporum, M. elegans, M. doedycoides, M. thaumasium, D. flagrans, A. robusta, and A. piriformis.