Screening and identification of horticultural soil fungi for their evaluation against the plant parasitic nematode Nacobbus aberrans

  • Ana L. Sosa
  • Laura C. Rosso
  • Fabricio A. Salusso
  • Miriam G. Etcheverry
  • María A. Passone
Original Paper


The plant-parasitic nematode Nacobbus aberrans is an endoparasite causing severe losses to a wide range of crops from North to South America. The use of native antagonistic fungi may be considered as a possible biological control alternative to reduce the damages caused by this species. Antagonistic effects of 66 potential nematophagous fungi against eggs (J1) and second-stage juveniles (J2) of N. aberrans, were evaluated in vitro on water agar. DGC test showed significant differences (p < 0.0001) in the efficacy of some fungal isolates tested, with parasitism levels for J1 and J2 of 0–95 and 1–78%, respectively. Five isolates of Purpureocillium lilacinum, Metarhizium robertsii and Plectosphaerella plurivora appeared as the most effective antagonists of N. aberrans, relying on hyphae and adhesive conidia in host infection processes.

Graphical Abstract


False root-knot nematode Horticultural agro-ecosystems Nematophagous fungi In vitro tests 



This work was carried out by the grant from Agencia Nacional de Promoción Científica y Tecnológica (ANPCYT), FONCYT-PICT/2016 No. 1005, 2017–2020 and Secretaría de Ciencia y Técnica, Universidad Nacional de Río Cuarto (SECYT-UNRC), PPI-2016 Res. 161, 2016–2018. The authors are grateful for the technical assistance of Dr. Alberto Troccoli, Istituto per la Protezione Sostenibile delle Piante, CNR, Bari, Italy.

Compliance with ethical standards

Conflict of interest

The authors have declared that no conflict of interest exists.


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Ana L. Sosa
    • 1
  • Laura C. Rosso
    • 2
  • Fabricio A. Salusso
    • 3
  • Miriam G. Etcheverry
    • 1
  • María A. Passone
    • 1
  1. 1.CONICET – Laboratorio de Ecología MicrobianaUniversidad Nacional de Río Cuarto (UNRC)Río CuartoArgentina
  2. 2.CNR - Istituto per la Protezione Sostenibile delle PianteBariItaly
  3. 3.Cátedra de HorticulturaUniversidad Nacional de Río Cuarto (UNRC)Río CuartoArgentina

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