First record of a new microsporidium pathogenic to Gonipterus platensis in Brazil.

Vista sencilla de ítem
dc.contributorCAROLINA 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.
dc.creatorJORDAN, C.
dc.creatorCARVALHO, V. R. de
dc.creatorMASCARIN, G. M.
dc.creatorOLIVEIRA, L. R. dos S.
dc.creatorDUNLAP, C. A.
dc.creatorWILCKEN, C. F.
dc.date2021-08-19T14:00:25Z
dc.date2021-08-19T14:00:25Z
dc.date2021-08-19
dc.date2021
dc.date.accessioned2026-07-07T05:08:43Z
dc.descriptionAbstract: 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.
dc.formatp. 1-10.
dc.identifierScientific Reports, v. 11, article 10971, 2021.
dc.identifier2045-2322
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1133728
dc.identifierhttps://doi.org/10.1038/s41598-021-90041-9
dc.identifier.urihttp://hdl.handle.net/123456789/481915
dc.languageeng
dc.rightsopenAccess
dc.subjectFungo Para Controle Biológico
dc.subjectFungo Entomógeno
dc.subjectBesouro
dc.subjectPraga de Planta
dc.subjectGonipterus
dc.subjectBeetle infestations
dc.subjectEucalyptus
dc.subjectPlant pests
dc.subjectEntomopathogenic fungi
dc.subjectBiological control
dc.subjectNosema
dc.subjectBark beetles
dc.titleFirst record of a new microsporidium pathogenic to Gonipterus platensis in Brazil.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Medio Ambiente (CNPMA)