摘要
通过对喜树幼苗中喜树碱含量的分析 ,发现不同生长期、不同器官中喜树碱的含量不同 ,幼叶和根中喜树碱的含量较高 .虽然喜树中含有对真核细胞具有毒性作用的喜树碱 ,但仍有 1 2种内生菌从喜树的不同器官中分离出来 .内生菌对喜树碱的敏感性实验表明 ,1 0μg/ m L喜树碱对 2种内生菌的生长几乎没有抑制作用 ,即是 1 0 0μg/m
Concentration of camptothecin were determined in different tissues of Camptotheca acuminata (Nyssaceae). The data were dependent on tissue type and developmental stage. Despite the presence of the toxic compound camptothecin, 12 endopytic fungi were isolated from healthy C. acuminata and were tested for their camptothecin sensitivity. Two isolates showed almost no inhibition at a camptothecin concentration of 10 μg/ml. Even at a concentration of 100μg/ml, the relative growth inhibition was moderately.
出处
《西北植物学报》
CAS
CSCD
2003年第7期1275-1278,共4页
Acta Botanica Boreali-Occidentalia Sinica
基金
教育部留学归国人员启动基金
关键词
喜树
喜树碱
内生菌
Camptotheca acuminata
camptothecin
endophytic fungi
