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- Title
Antifungal activity and genomic characterization of the biocontrol agent Bacillus velezensis CMRP 4489.
- Authors
Baptista, Julia Pezarini; Teixeira, Gustavo Manoel; de Jesus, Maria Luiza Abreu; Bertê, Rosiana; Higashi, Allan; Mosela, Mirela; da Silva, Daniel Vieira; de Oliveira, João Paulo; Sanches, Danilo Sipoli; Brancher, Jacques Duílio; Balbi-Peña, Maria Isabel; de Padua Pereira, Ulisses; de Oliveira, Admilton Gonçalves
- Abstract
The development of bio-based products has increased in recent years, and species of the Bacillus genus have been widely used for product development due to their elevated production of antimicrobial molecules and resistance to extreme environmental conditions through endospore formation. In this context, the antifungal potential of Bacillus velezensis CMRP 4489 was investigated using in silico predictions of secondary metabolites in its genome and in vitro tests against the following phytopathogenic fungi: Sclerotinia sclerotiorum, Macrophomina phaseolina, and Botrytis cinerea. The in-silico predictions indicated that CMRP 4489 possesses several Biosynthetic Gene Clusters (BGCs) capable of producing molecules with antifungal properties and other non-identified BGCs. The in vitro assay results evidenced strong antifungal activity, inhibiting more than 60% of the tested fungi, and the isolate's molecules were stable under diverse physicochemical conditions. The in vitro assay evidenced significant antifungal activity, deformation of the hyphal structure in SS, biofilm formation capacity, and swarming motility. In the colonization assay, we observed attachment, colonization, and net-shaped biofilm formation, with the strain transitioning from the seeds to nearby structures. Therefore, CMRP 4489 showed to be a potential biocontrol agent against various diseases with agronomic importance and can be used under adverse environmental conditions.
- Subjects
BIOLOGICAL pest control agents; BACILLUS (Bacteria); MACROPHOMINA phaseolina; PHYTOPATHOGENIC fungi; BOTRYTIS cinerea; SCLEROTINIA sclerotiorum; HERDING
- Publication
Scientific Reports, 2022, Vol 12, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-022-22380-0