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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
19/08/2021 |
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Data da última atualização: |
25/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JORDAN, C.; CARVALHO, V. R. de; MASCARIN, G. M.; OLIVEIRA, L. R. dos S.; DUNLAP, C. A.; WILCKEN, C. F. |
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Afiliação: |
CAROLINA JORDAN, FCA-UNESP; VANESSA RAFAELA DE CARVALHO, FCA-UNESP; GABRIEL MOURA MASCARIN, CNPMA; LEILANE RODRIGUES DOS SANTOS OLIVEIRA, FMB-UNESP; CHRISTOPHER A DUNLAP, USDA-ARS; CARLOS FREDERICO WILCKEN, FCA-UNESP. |
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Título: |
First record of a new microsporidium pathogenic to Gonipterus platensis in Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Scientific Reports, v. 11, article 10971, 2021. |
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Páginas: |
p. 1-10. |
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ISSN: |
2045-2322 |
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DOI: |
https://doi.org/10.1038/s41598-021-90041-9 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Microsporidia are naturally occurring fungal-related parasites that can infect nearly all animal hosts, but their biocontrol potential of insect pests is routinely overlooked in agriculture and forestry. This research brings the first report describing the natural occurrence of a microsporidium causing disease in field-collected populations of the invasive eucalyptus snout beetle, Gonipterus platensis (Coleoptera: Curculionidae), a major destructive pest of eucalyptus plantations in Brazil. Adult beetles were collected during field surveys in commercial eucalyptus plantations in southern Brazil to be examined and dissected with typical symptoms to verify presence of microsporidian spores in haemolymph. From 14 plantations in different sites, the natural infection occurrence in these populations ranged from 0 to 65%, while a lab colony exhibited an infection incidence of 70%. Spore density in haemolymph of symptomatic insects averaged 2.1 (±0.4)×10^7 spores/beetle. Symptoms in infected adults were identified by an abnormal abdomen with malformation of the second pair of wings, impairing their flight activity. Electron transmission microscopy of the pathogen showed morphological features similar to species belonging to the genus Nosema or Vairimorpha. Phylogenetic analysis of the full-length small subunit ribosomal RNA gene suggests this pathogen?s placement in the genus Vairimorpha, but with a sequence identity of ~94% with the nearest neighbours. The low level of sequence identity suggests this pathogen may represent a novel taxon in the genus and further requires whole genome sequencing for definitive taxonomic resolution. These findings provide insights on the natural occurrence of this novel pathogen of this invasive pest in Eucalyptus plantations in Brazil. Further studies are needed to determine potential of this microsporidium in the design of conservative or augmentative biological control programs for this invasive pest. MenosAbstract: Microsporidia are naturally occurring fungal-related parasites that can infect nearly all animal hosts, but their biocontrol potential of insect pests is routinely overlooked in agriculture and forestry. This research brings the first report describing the natural occurrence of a microsporidium causing disease in field-collected populations of the invasive eucalyptus snout beetle, Gonipterus platensis (Coleoptera: Curculionidae), a major destructive pest of eucalyptus plantations in Brazil. Adult beetles were collected during field surveys in commercial eucalyptus plantations in southern Brazil to be examined and dissected with typical symptoms to verify presence of microsporidian spores in haemolymph. From 14 plantations in different sites, the natural infection occurrence in these populations ranged from 0 to 65%, while a lab colony exhibited an infection incidence of 70%. Spore density in haemolymph of symptomatic insects averaged 2.1 (±0.4)×10^7 spores/beetle. Symptoms in infected adults were identified by an abnormal abdomen with malformation of the second pair of wings, impairing their flight activity. Electron transmission microscopy of the pathogen showed morphological features similar to species belonging to the genus Nosema or Vairimorpha. Phylogenetic analysis of the full-length small subunit ribosomal RNA gene suggests this pathogen?s placement in the genus Vairimorpha, but with a sequence identity of ~94% with the nearest neighbours. The low level of s... Mostrar Tudo |
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Thesagro: |
Besouro; Fungo Entomógeno; Fungo Para Controle Biológico; Praga de Planta. |
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Thesaurus Nal: |
Bark beetles; Beetle infestations; Biological control; Entomopathogenic fungi; Eucalyptus; Gonipterus; Nosema; Plant pests. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225348/1/Mascarin-First-record-2021.pdf
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Marc: |
LEADER 03010naa a2200361 a 4500
001 2133728
005 2021-08-25
008 2021 bl uuuu u00u1 u #d
022 $a2045-2322
024 7 $ahttps://doi.org/10.1038/s41598-021-90041-9$2DOI
100 1 $aJORDAN, C.
245 $aFirst record of a new microsporidium pathogenic to Gonipterus platensis in Brazil.$h[electronic resource]
260 $c2021
300 $ap. 1-10.
520 $aAbstract: Microsporidia are naturally occurring fungal-related parasites that can infect nearly all animal hosts, but their biocontrol potential of insect pests is routinely overlooked in agriculture and forestry. This research brings the first report describing the natural occurrence of a microsporidium causing disease in field-collected populations of the invasive eucalyptus snout beetle, Gonipterus platensis (Coleoptera: Curculionidae), a major destructive pest of eucalyptus plantations in Brazil. Adult beetles were collected during field surveys in commercial eucalyptus plantations in southern Brazil to be examined and dissected with typical symptoms to verify presence of microsporidian spores in haemolymph. From 14 plantations in different sites, the natural infection occurrence in these populations ranged from 0 to 65%, while a lab colony exhibited an infection incidence of 70%. Spore density in haemolymph of symptomatic insects averaged 2.1 (±0.4)×10^7 spores/beetle. Symptoms in infected adults were identified by an abnormal abdomen with malformation of the second pair of wings, impairing their flight activity. Electron transmission microscopy of the pathogen showed morphological features similar to species belonging to the genus Nosema or Vairimorpha. Phylogenetic analysis of the full-length small subunit ribosomal RNA gene suggests this pathogen?s placement in the genus Vairimorpha, but with a sequence identity of ~94% with the nearest neighbours. The low level of sequence identity suggests this pathogen may represent a novel taxon in the genus and further requires whole genome sequencing for definitive taxonomic resolution. These findings provide insights on the natural occurrence of this novel pathogen of this invasive pest in Eucalyptus plantations in Brazil. Further studies are needed to determine potential of this microsporidium in the design of conservative or augmentative biological control programs for this invasive pest.
650 $aBark beetles
650 $aBeetle infestations
650 $aBiological control
650 $aEntomopathogenic fungi
650 $aEucalyptus
650 $aGonipterus
650 $aNosema
650 $aPlant pests
650 $aBesouro
650 $aFungo Entomógeno
650 $aFungo Para Controle Biológico
650 $aPraga de Planta
700 1 $aCARVALHO, V. R. de
700 1 $aMASCARIN, G. M.
700 1 $aOLIVEIRA, L. R. dos S.
700 1 $aDUNLAP, C. A.
700 1 $aWILCKEN, C. F.
773 $tScientific Reports$gv. 11, article 10971, 2021.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
21/11/2001 |
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Data da última atualização: |
21/11/2001 |
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Autoria: |
PIRES, C. S. S.; PRICE, P. W.; OLIVEIRA, R. C. de. |
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Título: |
Distribution of the Spittlebug Deois flavopicta Stal (Homoptera: Cercopidae) on wild and cultivated host species. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Anais da Sociedade Entomologica do Brasil, v.29, n.3, p.401-412, 2000. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Brazilian savannas; Insecta: Densidade ninfal; Nymphal density. |
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Thesagro: |
Brachiaria; Cerrado. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00616naa a2200193 a 4500
001 1181202
005 2001-11-21
008 2000 bl --- 0-- u #d
100 1 $aPIRES, C. S. S.
245 $aDistribution of the Spittlebug Deois flavopicta Stal (Homoptera$bCercopidae) on wild and cultivated host species.
260 $c2000
650 $aBrachiaria
650 $aCerrado
653 $aBrazilian savannas
653 $aInsecta: Densidade ninfal
653 $aNymphal density
700 1 $aPRICE, P. W.
700 1 $aOLIVEIRA, R. C. de
773 $tAnais da Sociedade Entomologica do Brasil$gv.29, n.3, p.401-412, 2000.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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