Abstract
A binucleate Rhizoctonia (BNR) isolate was recovered from potato subterraneous stems showing canker symptoms, which was collected from Chongqing municipality in southwestern China. This isolate was identified as anastomosis group (AG)-G based on cultural appearance, hyphal anastomosis and sequence analysis of the internal transcribed spacers of ribosomal DNA. Pathogenicity tests under glasshouse conditions revealed that the AG-G isolate induced brown, dry and slightly sunken lesions on potato stems. Necrotic areas covered less than 10 % of the surface of underground stems. This is the first report of BNR AG-G causing stem canker on potato plants in China.
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Acknowledgments
We are grateful to N. Kondo (Hokkaido University, Japan) for kindly providing the reference strains. This work was supported by Program for Changjiang Scholars and Innovative Research Team in University (No. IRT1042). Mention of trade names or commercial products in this report is solely for the purpose of providing specific information and does not imply recommendation or endorsement.
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Yang, Y., Zhao, C., Guo, Z. et al. Potato stem canker caused by binucleate Rhizoctonia AG-G in China. J Gen Plant Pathol 81, 287–290 (2015). https://doi.org/10.1007/s10327-015-0594-y
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DOI: https://doi.org/10.1007/s10327-015-0594-y