Inhibition of Paenibacillus larvae by an extracellular protein fraction from a honeybee-borne Brevibacillus laterosporus strain.

Autor: Marche MG; Dipartimento di Agraria, University of Sassari, Viale Italia 39, 07100, Sassari, Italy., Satta A; Dipartimento di Agraria, University of Sassari, Viale Italia 39, 07100, Sassari, Italy., Floris I; Dipartimento di Agraria, University of Sassari, Viale Italia 39, 07100, Sassari, Italy., Lazzeri AM; Dipartimento di Agraria, University of Sassari, Viale Italia 39, 07100, Sassari, Italy., Ruiu L; Dipartimento di Agraria, University of Sassari, Viale Italia 39, 07100, Sassari, Italy. Electronic address: lucaruiu@uniss.it.
Jazyk: angličtina
Zdroj: Microbiological research [Microbiol Res] 2019 Oct; Vol. 227, pp. 126303. Date of Electronic Publication: 2019 Jul 19.
DOI: 10.1016/j.micres.2019.126303
Abstrakt: The inhibitory action that a Brevibacillus laterosporus strain isolated from the honeybee body causes against the American Foulbrood (AFB) etiological agent Paenibacillus larvae was studied by in-vitro experiments. A protein fraction isolated from B. laterosporus culture supernatant was involved in the observed inhibition of P. larvae vegetative growth and spore germination. As a result of LC-MS/MS proteomic analyses, the bacteriocin laterosporulin was found to be the major component of this fraction, followed by other antimicrobial proteins and substances including lectins, chaperonins, various enzymes and a number of putative uncharacterized proteins. The results obtained in this study highlight the potential of B. laterosporus as a biological control agent for preserving and improving honeybee health.
(Copyright © 2019 Elsevier GmbH. All rights reserved.)
Databáze: MEDLINE
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