Data/hora: 14/06/2024 14:56:22

Biblioteca(s): | Embrapa Acre; Embrapa Gado de Corte; Embrapa Recursos Genéticos e Biotecnologia.
Data corrente: | 19/12/2023
Data da última atualização: | 28/02/2024
Autoria: | SIHLER, W.; SANCHES, M. M.; FAZOLIN, M.; ESTRELA, J. L. V.; SOUZA, M. L. de.
Afiliação: | WILLIAM SIHLER, Cenargen; MARCIO MARTINELLO SANCHES, CNPGC; MURILO FAZOLIN, CPAF-AC; JOELMA LIMA VIDAL ESTRELA; MARLINDA LOBO DE SOUZA, Cenargen.
Título: | Erinnyis ello granulovirus for cassava hornworm control in the Acre State of Brazil.
Ano de publicação: | 2024
Fonte/Imprenta: | Technology in Agronomy, v. 4, e001, 2024.
DOI: | https://doi.org/10.48130/tia-0023-0019
Idioma: | Inglês
Conteúdo: | The hornworm (Erinnyis ello) is an important pest of cassava and rubber tree with high capacity of migration and can be controlled with biological control agents such as baculoviruses. Baculoviruses are rod-shaped enveloped viruses with circular double-stranded DNA genomes infecting insects of the order Lepidoptera. Prior to large-scale use of certain baculovirus, it is essential to assess its genetic and morphological information. This work aimed to characterize the baculovirus isolate occurring in Erinnyis ello populations at small farms in Cruzeiro do Sul, Acre State, Brazil and to develop parameters for field management using this isolate. Viral particles were purified from infected larvae through ultracentrifugation in sucrose gradient. After treatment and negative staining with uranyl acetate 2%, viral particles were visualized using transmission electron microscope. The virus with ovicylindrical occlusion body presenting only one virion per envelope and size less than 0.5 µm was identified as a member of the genus Betabaculovirus. Viral DNA was extracted through phenol/chloroform cycles, digested with different restriction enzymes and separated with agarose gel electrophoresis. The restriction enzyme patterns obtained with the enzymes Bam HI and Hind III revealed seven and three DNA fragments, respectively; cleavage with Pst I, generated eight molar fragments and three submolar fragments and Eco RI digestion resulted in 21 fragments, with some submolar bands. Comparison of the DNA restriction pattern from ErelGV isolated in Acre with that described for ErelGV isolated from SC State showed high similarity. This isolate named as ErelGV-Acre presented potential for control of E. ello populations.
Palavras-Chave: | Acre; Amazonia Occidental; Amazônia Ocidental; Árbol de goma; Caterpillar; Comunidades rurales; Control biológico; Cruzeiro do Sul (AC); Cultivo a pequeña escala; Hornworm; Plagas de plantas; Rubber tree; Western Amazon; x; Yuca.
Thesagro: | Baculovirus; Controle Biológico; Erinnyis Ello; Hevea Brasiliensis; Lagarta; Mandioca; Manihot Esculenta; Pequeno Produtor; Praga de Planta; Propriedade Rural; Seringueira.
Thesaurus Nal: | Baculoviridae; Biological control; Cassava; DsDNA viruses; Insect larvae; Lepidoptera; Pest management; Plant pests; Rural communities; Small-scale farming.

Categoria do assunto:

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O Insetos e Entomologia

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162096/1/tia-0023-0019.pdf
Registro original: | Embrapa Gado de Corte (CNPGC)

Exemplares:

CENARGEN - (39344-1) - UPC - AP - DD -  -  -  - DIS
CPAF-AC - (27655-1) - UPC - AP - DD -  -  -  - DIS
CENARGEN - (39374-1) - UPC - AP - DD -  -  -  - DIS
CNPGC - (17976-1) - UPC - AP - DD -  -  -  - DIS