The occurrence of immune priming can be species-specific in entomopathogens.
Microb Pathog
; 118: 361-364, 2018 May.
Article
em En
| MEDLINE
| ID: mdl-29614365
ABSTRACT
Immune priming in invertebrates refers to an improved immune response (and therefore a better chance of survival) upon a second encounter with a specific pathogen. Although the existence of immune priming has been evaluated in invertebrate hosts, the ability of a particular entomopathogen species or strain to influence the occurrence of immune priming has not been thoroughly evaluated. The aim of the current study was to compare the occurrence of immune priming in Tenebrio molitor larvae after homologous challenges (a dual exposure to similar entomopathogens) with Serratia marcescens, Bacillus thuringiensis and Metarhizium anisopliae. Larvae presented more effective immune priming (measured as survival rates) when exposed to M. anisopliae or B. thuringiensis than when exposed to S. marcescens. We hypothesize that the toll pathway may help T. molitor survive these enemies and that the IMD pathway may be expressed to a lesser degree in this species, which may explain why they succumb to Gram-negative bacteria. This and other recent evidence suggest that the occurrence of immune priming in these organisms must not be ruled out until this phenomenon is tested with different entomopathogens.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tenebrio
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Interações Hospedeiro-Patógeno
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Imunidade Inata
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Larva
Limite:
Animals
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article