Natural Coinfection between Novel Species of Baculoviruses in Larvae.

Viruses

Laboratorio de Ingeniería Genética y Biología Celular y Molecular-Área Virosis de Insectos (LIGBCM-AVI), Dto. de Ciencia y Tecnología, Universidad Nacional de Quilmes, Roque Saenz Peña 352, Bernal 1876, Provincia de Buenos Aires, Argentina.

Published: December 2021

AI Article Synopsis

  • Guenée is a significant agricultural pest in America, prompting the need for effective biocontrol methods like biopesticides.
  • Two novel baculoviruses, one NPV (SporNPV) and one GV (SporGV), were isolated in Colombia and characterized as new species.
  • Bioassays revealed that both viruses infect larvae of their hosts, with SporGV enhancing the effectiveness of SporNPV, leading to a synergistic effect that improves pest control strategies.

Article Abstract

(Guenée) (Lepidoptera: Noctuidae) is an important pest in different crops of economic relevance in America. For its control, strategies that include chemicals are usually used; so, the description of entomopathogens would be very useful for the formulation of biopesticides. In this regard, two different baculoviruses affecting were isolated in Colombia, with one of them being an NPV and the other a GV. Ultrastructural, molecular, and biological characterization showed that both isolates possess the 38 core genes and are novel species in , named as (SporNPV) and (SporGV). The bioassays carried out in larvae of and showed infectivity in both hosts but being higher in the first. In addition, it was observed that SporGV potentiates the insecticidal action of SporNPV (maximum value in ratio 2.5:97.5). Both viruses are individually infective but coexist in nature, producing mixed infections with a synergistic effect that improves the performance of the NPV and enables the transmission of the GV, which presents a slowly killing phenotype.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8703766PMC
http://dx.doi.org/10.3390/v13122520DOI Listing

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