目的：考察植物生长物质对四裂红景天愈伤组织诱导和培养的影响并分析愈伤组织中红景天苷含量。
Objective: To investigate the effect of plant growth substances on induction and culture of callus from Rhodiola quadrifida and also to analyze salidroside contents in the callus.
细胞质在愈伤组织形成过程中逐渐减少，胞间隙在愈伤组织形成过程中逐渐增大，为裂生型胞间隙。
The cytoplasm gradually reduced during the callus formation and the intercellular space increased gradually, the intercellular space was schizogenous intercellular space.
结果折裂磨牙的折裂部位，治疗时机对患牙愈后有显著相关性。
Results the relevance test show that the treatment time after fracture and the location of the fracture are the main risk factors on the treatment.
结果折裂磨牙的折裂部位，治疗时机对患牙愈后有显著相关性。
Results the relevance test show that the treatment time after fracture and the location of the fracture are the main risk factors on the treatment.
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