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Resumen
Rachiplusia nu (Lepidoptera: Noctuidae) is a key soybean pest in Argentina. Current management of this moth
relies mainly on the use of synthetic insecticides and transgenic plants. In search of biological control-based
alternatives, a baculovirus from R. nu (hereafter RanuNPV) was characterized and its insecticidal properties
tested under laboratory conditions. RanuNPV occlusion bodies (OBs) were nearly tetrahedral, averaging
1.0 ± 0.2 μm in their
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dc.contributor.author | Jakubowicz, Violeta | |
dc.contributor.author | Taibo, Catalina Beatriz | |
dc.contributor.author | Sciocco, Alicia Ines | |
dc.contributor.author | Arneodo Larochette, Joel Demian | |
dc.date.accessioned | 2019-09-09T17:12:04Z | |
dc.date.available | 2019-09-09T17:12:04Z | |
dc.date.issued | 2019-09 | |
dc.identifier.issn | 0022-2011 | |
dc.identifier.other | https://doi.org/10.1016/j.jip.2019.107211 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/5825 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0022201119300850?via%3Dihub | |
dc.description.abstract | Rachiplusia nu (Lepidoptera: Noctuidae) is a key soybean pest in Argentina. Current management of this moth relies mainly on the use of synthetic insecticides and transgenic plants. In search of biological control-based alternatives, a baculovirus from R. nu (hereafter RanuNPV) was characterized and its insecticidal properties tested under laboratory conditions. RanuNPV occlusion bodies (OBs) were nearly tetrahedral, averaging 1.0 ± 0.2 μm in their longest edge and containing singly enveloped nucleocapsids. Histopathology of infected late-instar larvae revealed broad tissue tropism, where fat bodies and epidermis were the most affected organs. Phylogenetic analysis of concatenated polh, lef-8 and lef-9 partial sequences classified RanuNPV as a new species that clusters with other group II alphabaculoviruses infecting larvae of Plusiinae. Bioassays performed with R. nu neonates determined the median lethal dosage to be approximately 2.5 OBs/larva; most insects died within 4–5 days post inoculation showing typical baculovirus-induced liquefaction. No effects were observed in other lepidopteran species assayed, including Spodoptera frugiperda, Cydia pomonella and Diatraea saccharalis. High pathogenicity and host specificity make RanuNPV a good candidate for controlling R. nu. | eng |
dc.format | application/pdf | eng |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Journal of invertebrate pathology 166 : 107211. (September 2019) | eng |
dc.subject | Rachiplusia | es_AR |
dc.subject | Baculoviridae | es_AR |
dc.subject | Beneficial Organisms | eng |
dc.subject | Organismos Beneficiosos | es_AR |
dc.subject | Pathogenesis | eng |
dc.subject | Patogénesis | es_AR |
dc.subject | Phylogeny | eng |
dc.subject | Filogenia | es_AR |
dc.subject | Soybeans | eng |
dc.subject | Soja | es_AR |
dc.subject | Glycine Max | es_AR |
dc.subject | Biological Control Agents | eng |
dc.subject | Agentes de Control Biológico | es_AR |
dc.subject | Lepidoptera | es_AR |
dc.subject.other | Viral Insecticide | eng |
dc.title | Biological and molecular characterization of Rachiplusia nu single nucleopolyhedrovirus, a promising biocontrol agent against the South American soybean pest Rachiplusia nu | eng |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.origen | Instituto de Microbiología y Zoología Agrícola (IMYZA) | es_AR |
dc.description.fil | Fil: Jakubowicz, Violeta. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular. Consejo Nacional de investigaciones Científicas y Tecnológicas. Instituto de Agrobiotecnología y Biología Molecular; Argentina | es_AR |
dc.description.fil | Fil: Taibo, Catalina Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Veterinarias y Agronómicas. Servicio de Microscopía; Argentina | es_AR |
dc.description.fil | Fil: Sciocco, Alicia Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina | es_AR |
dc.description.fil | Fil: Arneodo Larochette, Joel Demian. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular. Consejo Nacional de investigaciones Científicas y Tecnológicas. Instituto de Agrobiotecnología y Biología Molecular; Argentina | es_AR |
dc.subtype | cientifico |
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