Leaf surface and endophytic fungi associated with onion leaves and their antagonistic activity against Alternaria porri . Research Authors Sobhy I. I. Abdel-Hafez, Kamal A. M. Abo-Elyousr and Ismail R. Abdel-Rahim 2015. Research Journal CZECH MYCOLOGY Research Pages 1-22 Research Rank 1 Research Vol 67 Research Year 2015