摘要
烟草低头黑病菌在麦芽糖液体培养基中能产生对烟草的致萎毒素。用病菌培养滤液对幼苗浸根可使烟草幼苗叶片快速萎蔫，叶缘干缩。该滤液耐高温、耐稀释、耐贮存；不同菌株培养滤液对烟草致萎力不同；滤液致萎力在烟草种及品种间差异明显；滤液浸根法可快速鉴定烟草品种的抗病性。
The toxin from tobacco black death disease pathogen was produced to wilt tobacco seedlings in the maltose liquid medium. Quick wilting of tobacco seedling was resulted from cultured filtrates by seedling root-soaking. Wilting symptom appeared and leaf margin dried-up. Cultural filtrates resisted high temperature, dilution and storage. Cultural filtrates of different strains caused different wilting effects on tobacco. Wilting efficiency of cultural filtrates was obviously different to tobacco species and varieties. Resistance of tobacco varieties to diseases was evaluated rapidly by cultural filtrates root-soaking.
出处
《山东农业大学学报（自然科学版）》
CSCD
1995年第2期131-136,共6页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
烟草低头黑病菌
培养滤液
致萎力
抗病性
tobacco black death disease pathogen
culture filtrates
wilting efficiency
resistance
