Genetic diversity in Gibberella fujikuroi(Fusarium section Liseola)from rice

Bakanae disease,caused by several species ofFusarium section Liseola is an important dis-ease of rice(Oryza sativa L.).It is unclearwhether the isolates with different morpholog-ical features in anamorphs were genetic differ-ent.Gibberella fujikuroi is the teleomorph ofspecies of Fusarium section Liseola,and en-compasses at least seven mating populations(MPs).Vegetative compatibility group(VCG)has been used to study the relation- ships between the strains within a fungalspecies.We studied the genetic diversity ofpathogenes of rice bakanae disease by usingthe MP and VCG techniques.

镰孢属李瑟组的分类研究——李瑟组的一新变种

记述李瑟组一新变种:串珠镰孢杭州变种Fusarium moniliforme var.hangzhouensevar.nov.,并附有形态照片.

镰孢属李瑟组研究──促进李瑟组产孢的植物组织培养基

研究了采用常规方法灭菌的植物组织培养基，结果表明，在所试验的３０种植物组织培养基中，矢车菊、石竹和茶叶３种植物组织培养基能促进李瑟组镰孢产生典型的大孢子，小孢子和产孢细胞，可作为鉴定用培养基。

李瑟组镰刀菌孢子噬杀因子在我国的发现

分离自玉米上的镰刀菌菌株 YM9- 7与分离自棉花上的镰刀菌菌株 MH50进行杂交 ,可以产生大量 4孢子子囊 ( 95%以上 ) ,将 YM9- 7与 MH50的杂交后代与菌株 MH50回交 ,98%的子囊为 8孢子子囊 ,证实孢子噬杀因子在菌株 MH50内存在。