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Volume 18
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10.3390/d18060335
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Article

Biocontrol Potential of Arthrobotrys thaumasius Isolated from Banana Roots (Musa spp. L.) Against Root-Knot Nematodes of the Genus Meloidogyne

by
Giovanna Carpio
1,
Alejandra de la Cruz
1,*,
María F. Ratti
2,
Rafael F. Castañeda-Ruiz
3 and
Marcos Vera-Morales
2,*
1
Grupo de Investigación en Aplicaciones Biotecnológicas—GIAB, Universidad Politécnica Salesiana—UPS, Carrera de Biotecnología, Campus María Auxiliadora, Km 19.5 Vía a La Costa, Guayaquil 090901, Ecuador
2
Centro de Investigaciones Biotecnológicas del Ecuador, Escuela Superior Politécnica del Litoral—ESPOL, Campus Gustavo Galindo, Km 30.5 Vía Perimetral, Guayaquil 090902, Ecuador
3
Departamento de Micologia, Centro de Biociências (CB), Universidade Federal de Pernambuco (UFPE), Av. da Engenharia, s/n Cidade Universitaria, Recife 50740-600, PE, Brazil
*
Authors to whom correspondence should be addressed.
Diversity 2026, 18(6), 335; https://doi.org/10.3390/d18060335
Submission received: 23 February 2026 / Revised: 25 May 2026 / Accepted: 30 May 2026 / Published: 3 June 2026
(This article belongs to the Special Issue Rhizosphere Microbial Community Diversity)
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Abstract

Root-knot nematodes of the genus Meloidogyne are among the most destructive endoparasitic nematodes due to their ability to infect a wide range of agriculturally important crops. In this context, nematode-trapping fungi have been widely recognized for their potential as biological control agents against plant-parasitic nematodes. In the present study, the nematode-trapping fungus Arthrobotrys thaumasius was isolated from roots soils of banana plants (Musa spp.) in the canton of Guayaquil, Guayas Province, Ecuador. Four strains were obtained and identified based on sequence analyses of molecular markers. In addition, the in vitro growth and sporulation of the isolates were evaluated, with cornmeal agar and oat agar proving to be the most suitable culture media. Three A. thaumasius isolates exhibited attraction and capture rates exceeding 65% against second-stage juveniles (J2) of Meloidogyne. This study represents the first report of the isolation and characterization of A. thaumasius in Ecuador and demonstrates that isolates HN-20, HN-21, and HN-24 have high potential as biological control agents, positioning them as promising candidates for the sustainable management of root-knot diseases caused by Meloidogyne spp.
Keywords: fungal biodiversity; tropical ecosystems; asexual fungi; integrated management; Orbiliaceae fungal biodiversity; tropical ecosystems; asexual fungi; integrated management; Orbiliaceae

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MDPI and ACS Style

Carpio, G.; de la Cruz, A.; Ratti, M.F.; Castañeda-Ruiz, R.F.; Vera-Morales, M. Biocontrol Potential of Arthrobotrys thaumasius Isolated from Banana Roots (Musa spp. L.) Against Root-Knot Nematodes of the Genus Meloidogyne. Diversity 2026, 18, 335. https://doi.org/10.3390/d18060335

AMA Style

Carpio G, de la Cruz A, Ratti MF, Castañeda-Ruiz RF, Vera-Morales M. Biocontrol Potential of Arthrobotrys thaumasius Isolated from Banana Roots (Musa spp. L.) Against Root-Knot Nematodes of the Genus Meloidogyne. Diversity. 2026; 18(6):335. https://doi.org/10.3390/d18060335

Chicago/Turabian Style

Carpio, Giovanna, Alejandra de la Cruz, María F. Ratti, Rafael F. Castañeda-Ruiz, and Marcos Vera-Morales. 2026. "Biocontrol Potential of Arthrobotrys thaumasius Isolated from Banana Roots (Musa spp. L.) Against Root-Knot Nematodes of the Genus Meloidogyne" Diversity 18, no. 6: 335. https://doi.org/10.3390/d18060335

APA Style

Carpio, G., de la Cruz, A., Ratti, M. F., Castañeda-Ruiz, R. F., & Vera-Morales, M. (2026). Biocontrol Potential of Arthrobotrys thaumasius Isolated from Banana Roots (Musa spp. L.) Against Root-Knot Nematodes of the Genus Meloidogyne. Diversity, 18(6), 335. https://doi.org/10.3390/d18060335

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