Year 2018, Volume 3, Issue 3

Year : 2018
Volume : 3
Issue : 3
   
Authors : Natalija ATANASOVA-PANCEVSKA, Dzoko KUNGULOVSKI
Title : ISOLATION, CHARACTERIZATION AND FORMULATION OF ANTAGONISTIC BACTERIA AGAINST FUNGAL PLANT PATHOGENS
Abstract : Concerns regarding food safety and the environment have led to reduced use of agrochemicals and the development of sustainable agriculture. In this context, biological control of fungal plant pathogens can improve global food availability, one of the three pillars of food security, by reducing crop losses, particularly for low-income farmers. Antagonistic bacteria are common soil inhabitants with potential to be developed into biofungicides for the management of fungal plant pathogens. In this study, antagonistic bacterium was isolated from the commercial compost from a Resen factory for compost and screened for its growth inhibition of fungal pathogens in laboratory tests. The zone of inhibition (mm) was recorded by measuring the distance between the edges of the growing mycelium and the antagonistic bacterium. Five replications were maintained for each isolate. Based on phenotypic characteristics, biochemical tests, and sequence analysis of 16S rRNA, the antagonistic bacterium was identified as Paenibacillus alvei (strain DZ-3). The bacterium suppressed the growth of all five tested fungal plant pathogens (Fusarium oxysporum, Rhizoctonia solani, Alternaria alternata, Botrytis cinerea and Plasmopara viticola) in in vitro conditions over. The survival of antagonistic bacterium in peat and talc formulations decreased time at room temperature, but the populations remained above 108 CFU/g during the 180-day storage period. This study suggests that this bacterium can be developed and formulated as biofungicides for minimizing the crop losses caused by fungal plant pathogens and diseases caused by them.
For citation : Atanasova-Pancevska, N. Kungulovski, D. (2018). Isolation, characterization and formulation of antagonistic bacteria against fungal plant pathogens. AGROFOR International Journal, Volume 3. Issue No. 3. pp. 80-89. DOI: 10.7251/AGRENG1803080A
Keywords : biocontrol, fungal plant pathogens, biofungicides, antagonistic bacteria
   
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