The cultural filtrates of FSB on F-2 media (NH4NO3 10.0g, KH2PO45.0g, MgSO47H2O 2.5g, L-xylose 30g, H2O 1000ml) can induce similar symptoms.

• V100-93-6菌株F2培养基培养滤液(或稀释液)能够诱导胜利百号薯苗呈现的症状与分生孢子接种所致症状相似。