pathogens Article Investigation of Streptomyces scabies Causing Potato Scab by Various Detection Techniques, Its Pathogenicity and Determination of Host-Disease Resistance in Potato Germplasm Sohaib Ismail 1, Bo Jiang 2, Zohreh Nasimi 1, M. Inam-ul-Haq 3, Naoki Yamamoto 1 , Andrews Danso Ofori 1 , Nawab Khan 4, Muhammad Arshad 5, Kumail Abbas 6 and Aiping Zheng 1,* 1 Department of Plant Pathology, Sichuan Agricultural University, Chengdu 611130, China;
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[email protected] Received: 19 August 2020; Accepted: 12 September 2020; Published: 17 September 2020 Abstract: Streptomyces scabies is a Gram-positive bacterial pathogen that causes common scab disease to several crops, particularly in the potato. It is a soil borne pathogen, a very devastating scab pathogen and difficult to manage in the field. Streptomyces has several species that cause common scab such as S. scabiei, S. acidiscabies, S. europaeiscabiei, S. luridiscabiei, S. niveiscabiei, S. puniciscabiei, S. reticuliscabiei, S. stelliscabiei, S. turgidiscabies, S. ipomoeae. Common scab disease harmfully affects potato economic and market value due to the presence of black spots on the tuber.