Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of common scab on potato caused by Streptomyces europaeiscabiei in Taiwan.

Abstract

In Taiwan, only Streptomyces scabies has been reported as the causal species of common scab on potato tubers. In spring of 2015 and 2016, tubers of potato cv. Kennebec with scab symptoms were collected from 14 fields in Taichung, Yunlin County, and Chiayi County. Bacteria were isolated from scab lesions using International Streptomyces Project medium 4. Based on molecular data (PCR assay, Hpy99I digestion and multi-gene sequence analysis) and pathogenicity test, the causal agent was identified as S. europaeiscabiei. This is thought to be the first report of S. europaeiscabiei causing potato common scab in Taiwan.