Conclusion The precision of measurement by finger-feeling are affected by anatomy condition of apical foramen and apical zone. 结论指感法测量上前牙的牙体操作长度准确度受根尖孔和根尖区的解剖状态及病变程度的影响。
The results of in situ hybridization showed that its expression was detectable clearly in the apical meristem, the elongation zone of root tip, steles of the branch zone and the young lateral root. 通过RNA原位杂交和OsRAA1基因启动子调控GUS基因表达的模式,证实OsRAA1基因主要在根尖的顶端分生区和伸长区,根尖分支区和幼侧根的中柱,侧根的原基表达。