The Tripartite Interaction of Host Immunity-Bacillus thuringiensis Infection-Gut Microbiota.
Toxins (Basel)
; 12(8)2020 08 12.
Article
em En
| MEDLINE
| ID: mdl-32806491
ABSTRACT
Bacillus thuringiensis (Bt) is an important cosmopolitan bacterial entomopathogen, which produces various protein toxins that have been expressed in transgenic crops. The evolved molecular interaction between the insect immune system and gut microbiota is changed during the Bt infection process. The host immune response, such as the expression of induced antimicrobial peptides (AMPs), the melanization response, and the production of reactive oxygen species (ROS), varies with different doses of Bt infection. Moreover, B. thuringiensis infection changes the abundance and structural composition of the intestinal bacteria community. The activated immune response, together with dysbiosis of the gut microbiota, also has an important effect on Bt pathogenicity and insect resistance to Bt. In this review, we attempt to clarify this tripartite interaction of host immunity, Bt infection, and gut microbiota, especially the important role of key immune regulators and symbiotic bacteria in the Bt killing activity. Increasing the effectiveness of biocontrol agents by interfering with insect resistance and controlling symbiotic bacteria can be important steps for the successful application of microbial biopesticides.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
3_ND
Base de dados:
MEDLINE
Assunto principal:
Bacillus thuringiensis
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Infecções Bacterianas
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Microbioma Gastrointestinal
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Imunidade
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Insetos
Limite:
Animals
Idioma:
En
Revista:
Toxins (Basel)
Ano de publicação:
2020
Tipo de documento:
Article