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Artículo

First report on the entomopathogenicity and virulence of Akanthomyces muscarius LY 72.14, a Yungas native fungal isolate, for Anastrepha fraterculus control

Danilovich, Mariana ElizabethIcon ; Ovruski Alderete, Sergio MarceloIcon ; Fariña, Julia InesIcon ; Delgado, Osvaldo DanielIcon
Fecha de publicación: 11/2020
Editorial: Taylor & Francis Ltd
Revista: Biocontrol Science and Technology
ISSN: 0958-3157
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otros Tópicos Biológicos

Resumen

In this work, we report the entomopathogenic potential of Akanthomyces muscarius LY72.14, a fungus isolated from a soil sample collected in the Southernmost sector of Las Yungas (Tucumán, Argentina) subtropical rainforest. The isolated fungus exhibited both pathogenicity and virulence in larvae, pupae and adults of the pestiferous fruit fly Anastrepha fraterculus, ability that could then be applicable for fruit pest biocontrol. Groups of 120 late-third-instar larvae were inoculated by immersion with four different conidial concentrations of A. muscarius LY 72.14 ranging from 105 to 108 conidia mL−1. Mycosis was subsequently verified through different time lapses for larva (1–2 days), pupa (14 days) and adults (13 days). Results revealed adult stage as the most susceptible to fungal infection, with a mortality percentage of 29.4 ± 3.2%, whilst pupal mortality reached 7.8 ± 1.2%. On the other hand, larval mortality was similar to the non-infected control (5.9 ± 1.4%). When 108 conidia mL−1 fungal inocula were used, the total host mortality (involving the three fly developmental stages) reached 53%. Virulence against fly adults was significantly dependent on high conidial concentrations, achieving a LC50 value of 8.4 × 107 conidia mL−1, with a similar killing effectiveness pattern (43–45%) among 107 and 108 conidial concentrations. The promising herein demonstrated biocontrol potential of A. muscarius LY 72.14 to effectively infect and kill A. fraterculus under lab-condition assays, makes relevant to evaluate this native fungal isolate under field-cage and open-field conditions to weight the possibilities for biocontrol massive usage and its tentative application for integrated plague management.
Palabras clave: ENTOMOPATHOGENIC FUNGI , FRUIT FLY BIOLOGICAL CONTROL , LAS YUNGAS RAINFOREST , SOUTH AMERICAN FRUIT FLY
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/123922
DOI: http://dx.doi.org/10.1080/09583157.2020.1802699
URL: https://www.tandfonline.com/doi/full/10.1080/09583157.2020.1802699
Colecciones
Articulos(INBIOFAL)
Articulos de INSTITUTO DE BIOTECNOLOGÍA FARMACEUTICA Y ALIMENTARIA
Articulos(PROIMI)
Articulos de PLANTA PILOTO DE PROC.IND.MICROBIOLOGICOS (I)
Citación
Danilovich, Mariana Elizabeth; Ovruski Alderete, Sergio Marcelo; Fariña, Julia Ines; Delgado, Osvaldo Daniel; First report on the entomopathogenicity and virulence of Akanthomyces muscarius LY 72.14, a Yungas native fungal isolate, for Anastrepha fraterculus control; Taylor & Francis Ltd; Biocontrol Science and Technology; 30; 11; 11-2020; 1212-1227
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