摘要
固氮醋酸杆菌是一种从甘蔗中分离的固氮细菌。通过对组织培养的甘薯进行接种 ,发现固氮醋酸杆菌可以侵染到甘薯体内并定殖 ;指示剂显色反应和从接种植株体再分离细菌结果显示 ,固氮醋酸杆菌可以从根系或茎基部的伤口进入植株体内 ,并可到达根、茎、叶等器官中定殖 ;研究还发现接种固氮醋酸杆菌可以显著提高甘薯组培苗的生物量和叶片叶绿素含量 ,表明其有利于植株生长和氮营养的改善。
Tissue cultured plantlets of sweet potato were inoculated with A diazotrophicus originally isolated from field grew sugarcane The results showed that the plantlet of sweet potato could be infected by A diazotrophicus The bacterium on and within the plant tissues were confirmed by the color change from green to dark orange of medium The chlorophyll content and fresh weight of asepticsweet potato plantlet inoculated with A diazotrophicus was higher than those of asepticsweet potato plant without A diazotrophicus
出处
《福建农业学报》
CAS
2001年第1期49-53,共5页
Fujian Journal of Agricultural Sciences
