Journal of Plant Diseases and Protection

, Volume 126, Issue 2, pp 173–176 | Cite as

Involvement of Colletotrichum coccodes causing atypical symptoms of potato tubers in Turkey

  • Emel Çakır
  • Aynur Karahan
  • İlker KurbetliEmail author
Short Communication


In 2015 and 2017, potato storages were surveyed for the prevalence of atypical potato tuber rots in Nevşehir and Isparta Provinces of Turkey. About 4–5 months after harvesting, 80% of the potatoes cv. Melody, that were stored at 4–5 °C and 65–75% relative humidity, were affected by the disease. The symptoms of the disease were similar to gangrene caused by Boeremia exigua var. foveata including superficial, dark lesions or dark brown, sunken lesions that have a sharp border with healthy tissue on tubers. A fungus was consistently isolated from necrotic tuber tissues. The pathogen was identified as Colletotrichum coccodes (Wallr.) Hughes based on morphological characteristics and the analysis of sequence of the internal transcribed spacer region of the rDNA. Pathogenicity was tested by tuber inoculation with mycelial agar discs. After 4–6 weeks, irregular and dark brown sunken lesions developed on potato tubers, while control tubers remained symptomless. This is the first report of C. coccodes that caused extraordinary symptoms on potato tubers in Turkey.


Potato Black dot Anthracnose Sunken lesion 


Compliance with ethical Standards

Conflict of interest

All authors declare that they have no conflict of interest


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Copyright information

© Deutsche Phytomedizinische Gesellschaft 2019

Authors and Affiliations

  1. 1.Plant Protection Central Research InstituteAnkaraTurkey
  2. 2.Bati Akdeniz Agricultural Research InstituteAntalyaTurkey

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