alexa Role Of Certain Potato Tubers Constituents In Their Resistance To Bacterial Common Scab Caused By Streptomyces Scabies
ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
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5th World Congress on Biotechnology
June 25-27, 2014 Valencia Conference Centre, Valencia, Spain

Mahmoud R Asran, Mohamed H Abdel Aal, Kamal A M Abo-Elyousr and Farag A Saeed
Posters: J Biotechnol Biomater
DOI: 10.4172/2155-952X.S1.028
Abstract
Streptomyces common scab is one of the most bacterial diseases that costs economic loses. Streptomyces scabiei (Thaxter) Lambert and Loria (syn. Streptomyces scabies ) is the main causal agent of common scab in potato in the field. Eight potato cultivars namely, Diamont, Lady Rossete, Burna, Lady Bellford, Skenta, Flora, Brofent and Everest were tested for theirresistance (susceptibility) to common scab disease under greenhouse conditions. They varied to some extent in the degree of their susceptibility. Lady Rosette appeared to be the highest susceptible one followed by Burna, Everest, and Skenta. Lady Bellford, Diamont and Brofent showed intermediate disease severity. Flora cultivar exhibited the least degree of scab symptoms. The role of certain potato tubers constituents in the physiology of disease resistance was investigated (sugar contents, Pectin substances and calcium contents), Lady Bellford cultivar contained the highest concentration of total sugar followed by Flora, Burna, and Everest but Skenta, Lady Rosette and Diamont were approximately had equal in total sugar contents, while, Brofent cultivar contained the lowest content of total sugar. Skenta cultivar contained the highest concentration of pectin substances and calcium contents followed by Flora and Lady Bellford finally Burna cultivars.
Biography
Mahmoud R Asran is the Professor of Plant Pathology, Faculty of Agriculture, Sohag University, Egypt. He completed his PhD in Plant Pathology, Assiut University, Assiut, Egypt (1992-1998) and Post-doctoral studies in Hohenheim Uni. Institute for Phytomedicine, Stuttgart, Germany (1998-2002). He has more than 15 research publication in various journals.
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