Molecular and conventional identification and pathogenicity of Rhizoctonia solani isolates from tobacco (Nicotiana tabacum L.) in Samsun, Turkey.

作者: Cem Tolga Gurkanli , Ibrahim Ozkoc , Islam Gunduz

DOI: 10.1111/J.1439-0434.2009.01564.X

关键词:

摘要: A total of 101 fungal samples were isolated from tobacco (Nicotiana tabacum L.) plants in Samsun, Turkey and identified as Rhizoctonia solani. Of these samples, three belonging to Anastomosis Group (AG) -1-IB, 6 AG-2-1, 25 AG-4-HG-I 67 AG-4-HG-II, using ITS1-5.8S-ITS2 rDNA RFLP analysis, base sequence phylogenies conventional characters, such anastomosis reactions, morphology thiamine requirement. For five isolates both the AG-4-HG-II groups for all AG-1-IB AG-2-1 groups, molecular analysis pathogenicity tests performed. All selected solani highly virulent plants, causing symptoms resembling damping-off, except isolate 55TkTB63, which was only moderately virulent.

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