Isolation and Screening of Antagonistic Endophytes against and Preliminary Exploration on Anti-oomycete Mechanism of 6-5.

, the notorious pathogen of potato late blight, leads to a severe decline in potato yields and even harvest failure. We isolated 201 endophytic isolates from healthy root tissues of potatoes, among which 41 showed strong antagonistic activity against . Further, the tolerance to stress and the potential application against potato late blight of these antagonistic isolates were tested.