Molecular characterization of Bacillus thuringiensis strains to control Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae) population.

The main objective of this study was to characterize the toxicity and genetic divergence of 18 Bacillus thuringiensis strains in the biological control of Spodoptera eridania . Bacterial suspensions were added to the S. eridania diet. Half of the selected B. thuringiensis strains caused high mortality seven days after infection. The genetic divergence of B. thuringiensis strains was assessed based on Enterobacterial Repetitive Intergenic Consensus (ERIC) and Repetitive Extragenic Palindromic (REP) sequences, and five phylogenetic groups were formed. Despite their genetic diversity B. thuringiensis strains did not show any correlation between the collection sites and toxicity to larvae. Some B. thuringiensis strains are highly toxic to S. eridania, thus highlighting the potential of their endotoxins as biopesticides.

Bibliographic Details

Main Authors:	MACHADO, D. H. B., LIVRAMENTO, K. G. do, MAXIMO, W. P. F., NEGRI, B. F., PAIVA, L. V., VALICENTE, F. H.
Other Authors:	Déborah Heloísa Bittencourt Machado, Bolsista; Kalynka Gabriela do Livramento, Universidade Federal de Lavras; Wesley Pires Flausino Máximo, Universidade Federal de Lavras; Bárbara França Negri, Universidade Federal de São João del-Rei; Luciano Vilela Paiva, Universidade Federal de Lavras; FERNANDO HERCOS VALICENTE, CNPMS.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2020-01-24
Subjects:	Tipagem molecular, Toxicidade, Bactéria, Praga de Planta, Inseto, Controle Biológico,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119304
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