Pathogenicity of Some Fusarium species associated with superficial blemishes of potato tubers
Rukaia M. Gashgari, Youssuf Gherbawy Pol J Microbiol 2013; 62 (1): ICID: 1039008 Article type: Original article IC™ Value: 10.00
Abstract provided by Publisher
As an organ for reserve and propagation, the tuber grows underground and is in contact with soil-borne microorganisms, making it potentially exposed to blemishes. The knowledge about the pathogens is needed to set up efficient control strategies and to help potato growers to better know the causes of these blemishes and find technical solutions for improving the potato quality. Therefore, the objective of this study was the possibility of using some modern methods of molecular diagnostics and detection of the presence of fungal contaminants in potato blemishes in Al-Qasim (Saudi Arabia). Polygonal lesions was the most observed blemish type in the collected samples. One hundred and sixty isolates were collected from different types of blemishes recorded in this study. Fusarium , Penicillium, Ilyonectria, Alternaria and Rhizoctonia were the most common genera collected from different blemish types. Using ITS region sequencing all collected fungi identified at the species level. All Fusarium strains collected during this study were used to detect their pathogenicity against potato tubers. This is the first comprehensive report on identified of major pathogenic fungi isolated from potato tuber blemishes in Saudi Arabia.