论文部分内容阅读
植物病原真菌的异核作用,是引起病原物变异的基础之一。近来关于异核作用引起禾谷类作物锈菌新小种产生的资料很多,但在小麦条锈菌方面,还缺乏研究。本文报导小麦条锈菌夏孢子在培养基上萌发时芽管结合现象的初步观察资料。条绣菌中1,2,8a,和8b号四个小种及其混合小种的夏孢子,在Rodenhiser营养液培养基,葡萄糖洋菜培养基,NaCl洋菜培养基和2％水洋菜培养基上,在14℃黑暗条件下萌发时,观察到芽管结合现象是很普遍的。在2％水洋菜培养基和Rcdenhiser营养液洋菜培养基上结合现象较多;0.3克分子葡萄糖洋菜培养基次之;0.3克分子NaCl洋菜培养基对孢子萌发有抑制作用。结合的芽管拉直,变细,比正常的芽管细2—3倍。众多的芽管交互结合,形成网状。个别的芽管结合处有不规则形的结合体。
Heterologous nuclear role of plant pathogenic fungi, is one of the causes of pathogen variation. There have been many recent reports on the effects of heterokaryon on the emergence of new races of rust on cereal crops. However, there is a lack of research on wheat stripe rust. This article reports the primary observation data of the germination of germ during the germination of wheat stripe rust spores on the medium. The four spawns 1, 2, 8a, and 8b and the mixed races of the same were inoculated in Rodenhiser nutrient broth, glucose agar medium, NaCl agar medium and 2% It is common to observe germ tube binding when germinated in the dark at 14 ° C. The combination of 2% hydroponic culture medium and Rcdenhiser nutrient liquid agar medium was more; the 0.3g molecular glucose agar medium followed; the 0.3mM NaCl agar medium had inhibitory effect on spore germination. Combined with the germ tube straightening, thinning 2-3 times smaller than the normal germ tube. A large number of germ tubes interact with each other to form a network. Some germ tube junction irregular combination.