There is provided a method for the isolation of a meristematic cell line derived from the root of a plant comprising the steps of selecting a plant that is healthy, providing a culture of a quiescent centre-containing root tissue of the plant and collecting undifferentiated white tissue from the culture.在此提供有一種用於單離從植物的根衍生而來之具分生性之細胞株之方法,其包含選擇健康的植物、提供該植物之含靜止中心(quiescent centre)之根組織之培養物以及從該培養物中收集未分化的白色組織。