摘 要 ：从波斯婆婆纳发病植株上采得的胶孢炭疽菌菌株QZ－97a，经种下寄主专化性研究，可进一步鉴定为胶孢炭疽菌婆婆纳专化型（Colletotrichum gloeosporioides Penz Sacc.f.sp.veronicae S.Qiang et Q.Zeng）。通过扫描电镜观察，发现它在波斯婆婆纳叶片上6h后开始萌发，12h开始形成附着胞，菌丝侵入表皮的位置不仅是气孔，还有表皮细胞连接处，42h叶片就开始溃烂。菌株QZ－97a的专化性强，侵染速度快，侵染力较强，再次表明它具有开发为真菌除草剂的潜力。
Abstract:Because the strain QZ-97a of Colletotrichum gloeosporioides Penz isolated from Veronica persica was distinguished from other isolates of Colletotrichum gloeosporioides Penz by the test of host reaction, it was determined as Colletotrichum gloeosporioides