摘要
对小麦幼苗进行了组织病理学观察和氨基酸测定。结果表明：在初生吸器形成率、单孢菌落未成熟次生吸器数、单孢菌落梗基胞数上，慢粉品种与快病品种之间差异显著（Ｐ＝０．０５），这些指标可作为苗期鉴定慢粉品种的指标；在初生乳突形成率和单孢菌落次生附着胞数上，慢粉品种与快病品种间无显著差异；所有参试品种，都未产生过敏性细胞坏死。未接种叶的脯氨酸和丝氨酸含量，慢病品种高于快病品种；接种叶的丝氨酸含量。
The histopathological features were observed and contents of amino acide in the wheat seedling were determined.The result showed that the rate of primary haustoria of Blumeria graminis f.sp.tritici,the quantity of secondary haustoria and the quantity of conidiophore basal cell of singlespore colony were significantly different between slowmildewing and highly susceptible cultivars,which can be used as the index for identification of the wheat slowmildewing resistance in the seedling stage.The percentage of primary papillae and the quantity of secondary appressoria of singlespore colony were not significantly different between slowmildewing and highly susceptible cultivars.All of cultivars tested didnt produce necrotic hypersensitive reaction of cell.The contents of proline and serine of the slowmildewing cultivars in the noinoculated leaves were higher than that of highly susceptible cultivar,the serine content of the slowmildewing cultivars in inoculated leaves were lower than that of highly susceptible cultivar respectively.
出处
《西北农业大学学报》
CSCD
北大核心
1998年第1期60-64,共5页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
