First report of Chrysodeixis includens nucleopolyhedrovirus (ChinNPV) infecting Chrysodeixis includens (Lepidoptera: Noctuidae) in Argentina

Authors

  • Joel D Arneodo Consejo Nacional de Investigaciones Científicas y Técnicas, C1425FQB Buenos Aires, Argentina;
  • Luciana Dami Consejo Nacional de Investigaciones Científicas y Técnicas, C1425FQB Buenos Aires, Argentina;
  • Violeta Jakubowicz Consejo Nacional de Investigaciones Científicas y Técnicas, C1425FQB Buenos Aires, Argentina;
  • Raúl A Alzogaray Consejo Nacional de Investigaciones Científicas y Técnicas, C1425FQB Buenos Aires, Argentina;
  • Catalina Taibo Instituto Nacional de Tecnología Agropecuaria, Centro de Investigaciones en Ciencias Veterinarias y Agronómicas, 1686 Hurlingham, Argentina;

Keywords:

biological control, Plusiinae, baculovirus, characterization

Abstract

Typical baculovirus infection symptoms were observed in Chrysodeixis includens Walker (Lepidoptera: Noctuidae) larvae from a laboratoryrearing in Tucumán, Argentina. Scanning electron microscopyrevealed the occurrence of polyhedral occlusion bodies displaying aheterogeneous morphology. Amplification, sequencing, and phylogeneticanalysis of conserved polyhedrin, lef-8 and lef-9 genes identifiedthe pathogen, for the first time in Argentina, as a variant of Chrysodeixis includens nucleopolyhedrovirus (ChinNPV). The biocontrol potential of this new isolate is worthy of future research.

 

 Sumario

Se observaron síntomas típicos de infección por baculovirus en larvas de Chrysodeixis includens Walker (Lepidoptera: Noctuidae) criadas en laboratorio en Tucumán, Argentina. Mediante microscopía electrónica de barrido, se observaron cuerpos de oclusión poliédricos de morfología heterogénea. La amplificación, secuenciación y análisis filogenético de tres genes conservados (poliedrina, lef-8 y lef-9) permitieron identificar al patógeno, por primera vez en Agentina, como una variante de Chrysodeixis includens nucleopolyhedrovirus (ChinNPV). Se prevé investigar el potencial biocontrolador de este nuevo aislamiento.

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Published

2019-04-27

Issue

Vol. 101, No. 3 (September 2018)

Section

Scientific Notes

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