Bacillus amyloliquefaciens strain 32a as a source of lipopeptides for biocontrol of Agrobacterium tumefaciens strains

Abstract

The findings could be useful for growers and nursery men who are particularly interested in the biocontrol of the crown gall disease.

Lipopeptides from a novel Bacillus methylotrophicus 39b strain suppress Agrobacterium crown gall tumours on tomato plants

“…In this context, according to the literature, only a few strains of Bacillus were studied for their promising use against crown gall diseases. All studies, except that of Ben Abdallah et al ., reported antibiosis against A. tumefaciens through the production of bacteriocins as the antibacterial compounds . Indeed, Ben Abdallah et al .…”

“…The failed biocontrol of tumour formation by these Agrobacterium strains emphasises the need for alternative antagonistic bacteria, and indeed, efforts have been made to identify new strains. Bacterial genera studied for the control of crown gall disease include Agrobacterium , Pseudomonas , Serratia and Bacillus …”

“…Most studies reported that bacteriocins produced by Bacillus strains inhibited the growth of pathogenic Agrobacterium strains . In a recent study, Ben Abdallah et al reported for the first time the reduction in symptoms of crown gall disease after treatment with lipopeptides produced by Bacillus amyloliquefaciens strain 32a.…”

Efficacy ofEucalyptus cinereaas a Source of Bioactive Compounds for Curative Biocontrol of Crown Gall Caused byAgrobacterium tumefaciensStrain B6

“…This failure is related to the transfer of resistance of the plasmid pAgK84 encoding the antibiotic bacteriocin K84 to the crown gall pathogens [11, 12]. In addition, the genetically modified strain K1026 is not certified for use in countries prohibiting genetically modified organism [13]. Consequently, the requirement for new antibacterial agents against A. tumefaciens has become greater than ever.…”

Draft Genome Sequence of Bacillus velezensis GF610, a Producer of Potent Anti- Listeria Agents

“…For example, B. velezensis LM2303 produces surfactin, iturin, fengycin, bacillaene, and macrolactin (5). Strains of Bacillus amyloliquefaciens were found to produce difficidin, macrolactin, fengycin, bacillaene, surfactin, bacillibactin, and bacilysin (6–10). Locillomycin is produced by Bacillus subtilis (11).…”