再分化

In order to study the role of cellular interaction in hemopoiesis, syngeneic marrow nucleated cells and thymocytes suspensions obtained from the same mouse were transfused i.

小鼠胸腺细胞对多向性造血干细胞的分化也有明显的影响；本实验表明首先出现红系分化的增强，然后再出现粒系分化的增强。

Results showed that green firm callus and rooting were obtained with treatments of NAA 0.5-3.0mg/L, in which the NAA 0.5mg/L treatment appeared the optimal rooting result of 90%. White loose callus was obtained with treatment of 2,4-D0.1-3.0 mg/L.Callus can not be induced by adding BA solely at 0.5-3.0mg/L. There appeared bud redifferentiation only when appropriate concentration of combined BA,NAA and 2,4-D were applied.

结果表明：单独加入NAA0.5～3.0mg／L可诱导出绿色致密的愈伤组织，并再生出根，其中NAA0.5mg／L处理生根率最高，达90％；单独加入2，4-D0.1-3.0mg／L可诱导出白色疏松的愈伤组织；单独使用BA0.5—3.0mg／L不能诱导出愈伤组织；BA与NAA或2，4-D只有在适当的质量浓度范围内配合使用才能分化出芽，芽分化率最高的处理为BA3.0mg／L＋NAA0.5mg／L，分化率为30％。

According to 5'flank regions and partial sequences of the MyoG gene in Sus scrofa, Bos taurus, Homo sapiens, and Mus musculus published in GenBank, the homogeneous primers were designed to amplify the promoter region of Gansu wapiti MyoG by Touch-Down PCR.

MyoD和MyoG是一类肌调节蛋白，其中MyoD代表肌源性的发生；MyoG诱导骨骼肌的最终分化，调控中胚层细胞分化为成肌细胞，再由成肌细胞融合为肌纤维这一过程，在肌细胞分化过程中起着中心调节作用，是唯一的不可替代的成肌调节因子[2]。

If the ratio or the concentration of 2, 4-D was higher, the callus formed quickly, but it was hygrophanous, and easy to necrosis, conversely, if the ratio or the concentration of 2, 4-D was lower, the callus appeared very slowly or could not form, and adventitious root formed directly or indirectly.

比值较高（或2，4-D浓度较高）时愈伤组织出现的时间较早，但愈伤色泽不好，呈半透明水渍状，易于褐化死亡，而比值较低时，愈伤出现得很慢或不形成愈伤，且易于直接或再分化形成不定根；这些不定根长至1.5-2.0cm时就不生长，并逐渐褐化。

Merismatic cells mainly derived from the inside of RBM, and belonged to ingenesis. With the ceaseless growth of small cell group, the outer layer cells apop tosis gradually. Finally the buds broke through RBM and became young plants.

芽的分化发生方式属内起源，随着小细胞团的不断生长，外层细胞逐渐凋亡，最终使分化的芽突出再生团块再生成苗。

The present study demonstrates that caffeic acid phenethyl ester, a major component of honeybee propolis, enhanced ATRA-induced granulocytic differentiation in HL-60, a human promyelocytic cell line. The differentiation was assessed by Wright-Giemsa stain, nitroblue tetrazolium reduction, and membrane differentiation marker CD11b.

经由实验结果发现，利用化学染剂(Wright-Giemsa stain)观察型态， CAPE也会促进低剂量 ATRA (1nM)分化的效用，而此种分化经由 NBT reduction，和透过流式细胞仪分析分化标的膜蛋白 CD11b/CD14及细胞周期测试后，证实细胞周期停滞 G1 phase与分化现象的机制有关；再藉由免疫沉降法测试，更证实细胞周期停滞将影响 CDK2的活性。

Under some enviromental conditions, some tumor cells redifferentiate and give rise to normal functional terminal cells.

肿瘤细胞在一定条件下可以再分化，恶性表型逆转。

Establish a regeneration system of potato is utilize the theory that a living plantcell have an omnipotent quality, it can redifferentiate a new plant through the phase ofcallus.

马铃薯再生体系的建立是利用生活的植物细胞具有全能性的理论基础，通过愈伤组织阶段，再分化形成新的植株。

It seems that the stevioside biosynthesis is related to re-differentiation of chloroplast.when cultured 60 days later,all the callus with different concentration 6-BAP do have ability to synthetize SS or RA.

培养40 d的愈伤组织仅检测到RA，表明此时的愈伤组织又恢复了合成糖苷的能力，推测与叶绿体的再分化有关。

The elongation of the arm stump is mainly carried out by repetitious formation and re-differentiation of a lot of body wall-across blastemas in the arm stump.

而残腕的延长主要是通过在残腕多处形成干细胞原基，原基细胞原处增殖后经再分化形成新腕组织使残腕得以快速生长和延长。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。