烟草赤星病菌与黑斑病菌生物学特性的比较  

Comparative study of the biological characteristics between Alternaria alternata and Alternaria tabacina

作　　者：任建国[1] 王俊丽[1] 岳美云 张剑峰[3] 

机构地区：[1]贵州省果树科学研究所,贵州贵阳550006 [2]山东省阳信县林业局,山东阳信251800 [3]青岛农业大学农学与植保学院,山东青岛266109

出　　处：《湖南农业大学学报（自然科学版）》2011年第4期411-414,共4页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：青岛农业大学高层次人才启动基金项目(630724)

摘　　要：比较烟草赤星病菌和黑斑病菌基本生物学特性。结果表明：烟草赤星病菌和黑斑病菌的最适生长温度分别为25～30℃和20～25℃；pH6～9培养条件更有利于烟草赤星病菌的生长；烟草赤星病菌利用葡萄糖和蔗糖的能力明显大于黑斑病菌；两病原菌对硝酸铵、硫酸铵和干酪素的利用情况基本相同，利用能力大小依次为干酪素、硝酸铵、硫酸铵；马铃薯琼脂培养基、葡萄糖琼脂培养基和蔗糖琼脂培养基对两病原菌生长的影响存在显著差异，玉米粉琼脂培养基对两病原菌生长的影响无差异；扑海因和代森锰锌能完全抑制两病原菌的营养生长，百菌清和翠贝对两病原菌的生长抑制作用无明显差异，甲基托布津对赤星病菌的抑制能力强于对黑斑病菌的抑制能力。Comparative study of biological characteristics between Alternaria alternata and Alternaria tabacina were carried out. The results showed that the optimal growth temperature for Alternaria alternata and Alternaria tabacina were 25-30℃ and 20-25 ℃ respectively; A. alternata grew better than A. tabacina at pH 6-9; glucose and sugar utilization of A. alternata was higher than that ofA. tabacina; the same results were got for the use of acmonium nitrate, acmonium sulfate and casein by Alternaria alternata and Alternaria tabacina. Both organisms showed the highest utilization of casein, followed by acmonium nitrate and acmonium sulfate. There were significant differences in mycelia growth ofAlternaria alternata and Alternaria tabacina on potato agar, glucose agar and sugar agar respectively, while no differences existed between that of Alternaria alternata and Alternaria tabacina on cornmeal agar. Iprodione and Mancozeb totally inhibited the growth of A. alternata and A. tabacina. No difference existed in the inhibitive effects of chlorothalonil or stroby on A. alternata and A. tabacina while Topsin-M showed better inhibition on the mycelia of A. tabacina than that ofA. alternata.

关 键 词：烟草赤星病菌 烟草黑斑病菌 生物学特性 比较 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]