TAILIEUCHUNG - In vitro antagonistic activity of fungi isolated from sclerotia on potato tubers against Rhizoctonia solani

Forty-five fungal isolates were obtained from sclerotia of Rhizoctonia solani on potato tubers in Erzurum, Turkey. The interaction between fungal isolates and R. solani was studied in dual culture technique. Some fungal isolates affected R. solani by antibiosis and/or parasitism. | E. DEMİRCİ, E. DANE, C. EKEN Turk J Biol 35 (2011) 457-462 © TÜBİTAK doi: In vitro antagonistic activity of fungi isolated from sclerotia on potato tubers against Rhizoctonia solani Erkol DEMİRCİ1, Elif DANE2, Cafer EKEN1,3 1 Department of Plant Protection, Faculty of Agriculture, Atatürk University, 25240 Erzurum - TURKEY 2 Provincial Directorate of Agriculture, Section of Plant Protection, Manisa - TURKEY 3 Ardahan University, Ardahan - TURKEY Received: Abstract: Forty-five fungal isolates were obtained from sclerotia of Rhizoctonia solani on potato tubers in Erzurum, Turkey. The interaction between fungal isolates and R. solani was studied in dual culture technique. Some fungal isolates affected R. solani by antibiosis and/or parasitism. Results of the antagonism tests showed that Acremonium sp., Gliocladium viride, Paecilomyces marquandii, Paecilomyces sulphurellus, Penicillium camemberti, Penicillium expansum, Penicillium frequentans (ME-50), Penicillium nigricans, Penicillium olsonii, Penicillium phialosporum, Sporothrix sp. (MCY-4), Sporothrix schenckii, and Verticillium dahliae isolates produced an inhibition zone in front of the R. solani colony to a varying degree. Trichoderma harzianum isolates were able to overgrow the mycelium of R. solani. Physical colony contact was observed between the remaining 21 fungal isolates and R. solani. Furthermore, coiling of hyphae of Acremonium sp., Acremonium strictum, Gliocladium catenulatum, G. viride, and T. harzianum around those of R. solani was commonly observed. Key words: Biocontrol, potato, antibiosis, parasitism, Rhizoctonia solani Patates yumrularındaki sklerotiumlardan izole edilen fungusların Rhizoctonia solani’ye in vitro antagonistik etkileri Özet: Patates yumruları üzerinde bulunan Rhizoctonia solani’nin sklerotiumlarından 45 fungal izolat elde edilmiştir. Fungal izolatlar ve R. solani arasındaki etkileşim ikili kültür yöntemi ile çalışılmıştır. Bazı fungal izolatlar

• Sinh học
• Rhizoctonia solani
• Potato tubers
• Fungi species
• Biocontrol agents
• Water agar
• Sheath blight
• Rhizoctonia solani in vitro
• Rhizoctonia solani in soil
• Herbicides against sclerotial viability
• Different herbicides on the mycelial growth
• Mycelial growth of rhizoctonia solani
• Fungicides and Mungbean
• Rhizoctonia solani (Kuhn)
• Fungicides against Rhizoctonia solani
• Different bioagents
• Chemical measures
• Rhizoctonia solani Kuhn
• Trichoderma harzianum
• Pseudomonas fluorescence
• Chilli (Capsicum annum L )
• Rhizoctonia solani Kuhn in vivo
• Root rot
• Botanicals against rhizoctonia solani
• Root rot in soybean
• In vitro evaluation
• Pseudomonas fluorescens
• Dual culture
• In vitro and in soil
• Rhizoctonia solani in vitro and in soil
• Mycelial growth
• Web blight of soybean
• Sclerotial variability
• Rhizoctonia solani causal agent
• Molecular characterization
• Causing sheath blight in rice
• Silver nano
• Pathogen rhizoctonia solani kuhn
• Biogenic silver nanoparticles against rice
• Chickpea wet root
• Rot rhizoctonia solani
• Seed treatment with fungicides
• Bioagent on germination
• Capsicum annum
• Dry root rot
• Chilli (Capsicum annum)
• Antifungal nature
• Mycelial regeneration from sclerotia
• Blight of cowpea
• Sclerotial germination
• Cyamopsis tetragonoloba
• Root rot (Rhizoctonia solani)
• Clusterbean through fungicides
• Management of root rot
• Rootdip inoculation
• Stem application
• Tomato incited by Rhizoctonia solani
• Blight of tomato incited
• Sheath blight of rice
• Vitamins on epidemiological components
• Black scruf
• Disease severity
• Potato caused by Rhizoctonia solani
• Black scurf disease
• Trichoderma viride
• Rhizoctonia solani in organic gram
• Management of dry root rot caused
• Native Trichoderma for the management
• Management of wire stem
• Mustard caused by rhizoctonia solani
• Volatile compound produced
• Antagonistic potential of Trichoderma harzianum
• Sheath blight of maize
• Rhizoctonia solani causing banded leaf
• Host range
• Rice sheath blight fungus Rhizoctonia solani
• Host range studies
• Morphological characters
• Anastomosis grouping
• Group of Rhizoctonia solani
• Banded sheath blight
• Cross inoculation
• Rhizoctonia solani kuhn infecting small millets
• bài báo cáo thực tập
• bệnh thói củ do nấm
• vi khuẩn
• chủng nấm Rhizoctonia solani
• nấm Rhizoctonia solani
• Pathogenic variability
• Cultural characters
• Cotton collected
• Isolates of rhizoctonia solani
• Banded leaf and sheath blight
• Growth and development