In vitro Effect of Bacterial Biocontrol Organisms against Pectobacterium carotovorum on Potato

Authors : Fatih DADAŞOĞLU, John Fredy MALDONADO JOY, Gülsüm ÖZYURT, Recep KOTAN

Pages : 8-11

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Publication Date : 2020-12-31

Article Type : Research Paper

Abstract :Soft rot is a disease that cause substantial economic losses in potato production. Pectobacterium carotovorum is known as one of the most common soft rot causative agents and the disease has not effective control methods being developed yet. In this study the effect of 3 different bacterial isolates of Bacillus megaterium insert ignore into journalissuearticles values(B60d, TV6D, TV91C);, 2 of Paenibacillus polymyxa insert ignore into journalissuearticles values(Ç9, TV12E);, 2 of Bacillus subtilis insert ignore into journalissuearticles values(TV6F, TV17C);, 1 of Pantoea agglomerans insert ignore into journalissuearticles values(B79);, 1 of Agrobacterium radiobacter insert ignore into journalissuearticles values(A16);, 1 of Bacillus megaterium gc. subgroup A insert ignore into journalissuearticles values(FDG161);, 1 of Bacillus atrophaeus insert ignore into journalissuearticles values(FD1);, 1 of Pseudomonas fluorescens biotype F insert ignore into journalissuearticles values(FDG37); and 1 of Bacillus pumilus insert ignore into journalissuearticles values(TV3D); were tested against 5 pathogenic bacterial strains of P. carotovorum subsp. carotovorum insert ignore into journalissuearticles values(F37, F680, F741, F331, F742);, using dual culture method in in vitro conditions. The most effective bacterial isolate against strains Pectobacterium were P. carotovorum F37 + Bacillus megaterium B60d insert ignore into journalissuearticles values(55,00 mm); isolate, followed by P. carotovorum F680 + Bacillus megaterium B60d insert ignore into journalissuearticles values(44,00 mm); and P. carotovorum F742 + Bacillus megaterium B60d insert ignore into journalissuearticles values(39,33 mm); isolates. Therefore, Bacillus megaterium has a promising biocontrol activity against tested plant pathogenic bacteria under in vitro conditions.
Keywords : MIS, BIOLOG, Pectolytic activity, Soft rot, Pectobacterium carotovorum